military space

Space Command chief throws cold water on the question of UAPs in space

military space, Science, Space, space command, space force, UAP / Paul Patrick / March 4, 2026

Judging from recent comments from Gen. Stephen Whiting, head of US Space Command, we shouldn’t expect anything like that in whatever the government might release in response to Trump’s pending order.

Gen. Stephen Whiting, commander of US Space Command. Credit: US Air Force/Eric Dietrich

“I can say, I, personally, was very interested in the president’s announcement,” Whiting told reporters last week at the Air and Space Forces Association’s Warfare Symposium in Colorado. “I look forward to seeing what data does come out. I can also tell you, as a space operator now of 36 years, having spent a lot of time with space domain awareness sensors, tracking things in space, I’ve never seen anything in space other than manmade objects, so I am not aware of anything that is extraterrestrial, other than comets and things like that.

“But I’m fascinated in the topic,” he continued. “And if something’s revealed, I’ll be interested as an American citizen.”

Space Command’s charge includes an area of responsibility (AOR) that extends from the top of Earth’s atmosphere to the Moon and beyond. One of its missions is to track, monitor, and catalog objects in space. Whiting suggested that everything he’s seen in orbit is attributable to a human-made or natural origin.

“We will respond to any presidential direction to go look at our files, but I think the term of art now is UAP, and the A is aerial, so these are things that are below the Kármán line (100 kilometers), that are in the atmosphere,” Whiting said. “I’ve seen some of the same videos and radar data that all of you have, and my guess is those relevant services and combatant commands will turn that data over. I’m very interested in the topic, but I have no personal experience with any of those phenomena.”

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Pentagon buyer: We’re happy with our launch industry, but payloads are lagging

Commercial space, military space, Science, Space, space force, US Space Force / Paul Patrick / February 23, 2026

“The point is to get missions out the door as fast as possible. Two to three years is too slow.”

Maj. Gen. Stephen Purdy oversees the Space Force’s acquisition programs at the Pentagon. Credit: Jonathan Newton/The Washington Post via Getty Images

DALLAS—The Space Force officer tasked with overseeing more than $24 billion in research and development spending says the Pentagon is more interested in supporting startups building new space sensors and payloads than adding yet another rocket company to its portfolio.

The statement, made at a space finance conference in Dallas last week, was one of several points Maj. Gen. Stephen Purdy wanted to get across to a room full of investors and commercial space executives.

The other points on Purdy’s agenda were that the Space Force is more interested in high-volume production than spending money to develop the latest technologies, and that the military has, at least for now, lost one of its most important tools for supporting and diversifying the space industrial base.

The rhetoric around prioritizing payloads over launchers aligns with the Space Force’s recent history of supporting small startups. Since 2020, SpaceWERX, the Space Force’s commercial innovation program, has awarded 23 funding agreements—called Strategic Funding Increases (STRATFIs)—to commercial space startups developing new sensors, software, satellite components, spacecraft buses, and orbital transfer vehicles. SpaceWERX awarded a single STRATFI agreement to a launch company—ABL Space Systems—and that firm has since exited the space launch market.

“We’re on path for mass-produced launch,” said Purdy, the military deputy for space acquisition in the Department of the Air Force. “We have got our ranges situated so we can do mass-produced launch. We’ve got our data centers and our data structure for mass-production. We’ve got AI pieces that are mass-produced, satellite buses are nearly there, and our payloads are the last element. Payloads at mass-produced affordability, at scale, is the key element.”

K2’s Gravitas satellite, set for launch next month, will test the company’s Hall-effect thruster, solar arrays, and other systems. Credit: K2

Putting the money in

Payloads, Purdy told Ars after his talk, are “the last frontier” for scaling space missions. “The point is to get missions out the door as fast as possible. Two to three years is too slow. We’ve got to get down to one week. I’m not talking about super exquisite [payloads]. That’s not most of our missions. The commercial industry, your Kuipers [Amazon LEO], your Starlinks, have sort of got the comm piece down, but we’re still struggling in a lot of other stuff.”

One kind of payload Purdy identified was infrared sensors. Infrared sensors often come with cryocoolers to chill detectors to temperatures cold enough to provide sensitivity to faint targets, such as distant missile plumes, fires, explosions, or other objects in space. The technology isn’t as eye-catching as a rocket launch, but it will be key to many Space Force programs, including the Golden Dome missile defense shield backed by the Trump administration.

“I remain convinced that we’re going to think about the mission that we need, and we’re going to need satellites out the door and launched and in orbit within the week, at scale,” Purdy said. “I’m very convinced that that’s the path that we’re going to move down on the commercial and government side.”

The companies that come closest to that pace of satellite manufacturing are the ones Purdy mentioned: SpaceX’s Starlink and the Amazon LEO broadband networks. SpaceX and Amazon produce multiple satellites per day, but the spacecraft are identical. The Space Force needs plenty of rockets and communications satellites, but it also needs payloads and sensors to ride those launch vehicles and produce the data to be routed through relay stations in orbit.

Before President Trump ever uttered the words “Golden Dome,” the Space Force’s Space Development Agency was already striving to deploy a network of at least several hundred government-owned missile-detection, tracking, and data-relay satellites. Those satellites have suffered delays due to supply chain issues, particularly long lead times and delays in satellite buses, infrared payloads, laser communication terminals, and radiation-hardened processors.

Singing the blues

But the Space Force has lost access to one of the tools it used to help solve these problems. Many space mission components come from small businesses, and some parts come from overseas. The Space Force used STRATFIs, Small Business Innovation Research (SBIR), and Small Business Technology Transfer (STTR) grants to pay companies for basic research, experimentation, and scaling up manufacturing capacity. STRATFIs, SBIRs, and STTRs provided seed funding for high-risk, high-reward research and development.

Congress last year failed to reauthorize these programs, which are also used by NASA and other federal agencies. Opponents to a clean extension wanted legislation to cap how much funding can go to each grant recipient.

“I’ve got to get SBIRs and STRATFIs reauthorized, so I need the community’s help to get that done,” Purdy said. “There are some valid concerns that need to be addressed. All that needs to be addressed, but it affects the space industrial base a lot more than the other areas, and so I need everyone to kind of pile on and help get that done.”

Purdy took a victory lap by listing several STRATFIs that have, so far, yielded major results, at least for investors. K2 Space, a company developing high-power, low-cost satellite platforms, received $30 million in funding from the Space Force and Air Force in 2024. A year later, K2 closed a $250 million fundraising round at a company valuation of $3 billion. Apex Space, another startup looking to scale satellite manufacturing, received $11 million in strategic funding in 2024. A year later, Apex became a unicorn, exceeding a valuation of $1 billion. Impulse Space, which is working on in-space propulsion, received a STRATFI funding commitment from the Pentagon in 2024, helping propel the startup to a valuation of $1.8 billion.

“Years of SBIRs and STRATFIs have set the stage … We’ve been doing that for three or four or five years, we’ve produced a nice pool of 60 or 70 different companies that can help bid on all our upcoming new contracts, which is really nice,” Purdy said.

Under the Trump administration, the Defense Department has taken more steps to get cash in the hands of defense contractors. The Pentagon announced last month a $1 billion “direct-to-supplier” investment in L3Harris to expand production capacity of US solid rocket motors. This gives the federal government a direct equity stake in L3Harris’s missile business.

A Trump executive order last month also excoriated the defense industry for ballooning executive salaries, stock buybacks, and systemic lethargy. “You see some strong language through executive order and other mechanisms to say, ‘Hey, companies, you need to put in more CapEx yourselves. You need to kick in more yourselves.’ We’re no longer just going to provide you billions of dollars just for you to go build buildings,” Purdy said.

“And there’s some threat language on the back end of that. You’re going to do that, or else we’re going to start cutting you off. We’re going to start looking at other providers. That’s out in the open and subject for debate. But there’s a big carrot coming along with that, and that’s multi-year procurements. Multi-year procurements are the carrot to allow the investing community to have some amount of confidence,” Purdy continued.

“We’re not looking to be your R&D arm.”

Stephen Clark is a space reporter at Ars Technica, covering private space companies and the world’s space agencies. Stephen writes about the nexus of technology, science, policy, and business on and off the planet.

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US spy satellite agency declassifies high-flying Cold War listening post

Boeing, classified, Hughes, military space, National Reconnaissance Office, sigint, Space / Tim Belzer / January 29, 2026

The National Reconnaissance Office, the agency overseeing the US government’s fleet of spy satellites, has declassified a decades-old program used to eavesdrop on the Soviet Union’s military communication signals.

The program was codenamed Jumpseat, and its existence was already public knowledge through leaks and contemporary media reports. What’s new is the NRO’s description of the program’s purpose, development, and pictures of the satellites themselves.

In a statement, the NRO called Jumpseat “the United States’ first-generation, highly elliptical orbit (HEO) signals-collection satellite.”

Scooping up signals

Eight Jumpseat satellites launched from 1971 through 1987, when the US government considered the very existence of the National Reconnaissance Office a state secret. Jumpseat satellites operated until 2006. Their core mission was “monitoring adversarial offensive and defensive weapon system development,” the NRO said. “Jumpseat collected electronic emissions and signals, communication intelligence, as well as foreign instrumentation intelligence.”

Data intercepted by the Jumpseat satellites flowed to the Department of Defense, the National Security Agency, and “other national security elements,” the NRO said.

The Soviet Union was the primary target for Jumpseat intelligence collections. The satellites flew in highly elliptical orbits ranging from a few hundred miles up to 24,000 miles (39,000 kilometers) above the Earth. The satellites’ flight paths were angled such that they reached apogee, the highest point of their orbits, over the far northern hemisphere. Satellites travel slowest at apogee, so the Jumpseat spacecraft loitered high over the Arctic, Russia, Canada, and Greenland for most of the 12 hours it took them to complete a loop around the Earth.

This trajectory gave the Jumpseat satellites persistent coverage over the Arctic and the Soviet Union, which first realized the utility of such an orbit. The Soviet government began launching communication and early-warning satellites into the same type of orbit a few years before the first Jumpseat mission launched in 1971. The Soviets called the orbit Molniya, the Russian word for lightning.

A Jumpseat satellite before launch. Credit: National Reconnaissance Office

The name Jumpseat was first revealed in a 1986 book by the investigative journalist Seymour Hersh on the Soviet Union’s 1983 shoot-down of Korean Air Lines Flight 007. Hersh wrote that the Jumpseat satellites could “intercept all kinds of communications,” including voice messages between Soviet ground personnel and pilots.

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Asked why we need Golden Dome, the man in charge points to a Hollywood film

golden dome, military space, missile defense, Space, US Space Force / Mike M. / December 9, 2025

“If they see how prepared we are, no one starts a nuclear war.”

A test of the nation’s Ground-based Midcourse Defense system at Vandenberg Air Force Base, California, in 2019. Credit: US Air Force/Senior Airman Clayton Wear

Near the end of the film A House of Dynamite, a fictional American president portrayed by Idris Elba sums up the theory of nuclear deterrence.

“Just being ready is the point, right?” Elba says. “It keeps people in check. Keeps the world straight. If they see how prepared we are, no one starts a nuclear war.”

There’s a lot that goes wrong in the film, namely the collapse of deterrence itself. For more than 60 years, the US military has used its vast arsenal of nuclear weapons, constantly deployed on Navy submarines, at Air Force bomber bases, and in Minuteman missile fields, as a way of saying, “Don’t mess with us.” In the event of a first strike against the United States, an adversary would be assured of an overwhelming nuclear response, giving rise to the concept of mutual assured destruction.

The Pentagon’s Golden Dome missile defense shield, still in its nascent phase, could fundamentally transform nuclear strategy. One might argue that Golden Dome, if demonstrated as successful, could reshape deterrence in ways not seen since the United States and the Soviet Union first escalated their nuclear arms race in the 1950s.

Theory of deterrence

Production of A House of Dynamite, released in October, began well before President Donald Trump retook the White House and started issuing a bevy of executive orders, one of which directed the Pentagon to start work on a defense shield to protect the US homeland from missile and drone attacks. This initiative was later named Golden Dome, a twist on Israel’s Iron Dome missile defense system.

Proponents of the Golden Dome program say it’s necessary to defend the United States against evolving threats, especially in a time of “great power competition” with nuclear-armed China. Golden Dome is supposed to defend against traditional ballistic missiles, maneuverable hypersonic missiles, cruise missiles, and slower-moving drones. All of these types of weapons have seen use on battlefields in the Middle East, Ukraine, and Russia in the last several years.

Opponents argue that Golden Dome will cost untold hundreds of billions of dollars, destabilize the global order, and increase the risk of a nuclear attack. Their thinking goes that if an adversary’s leaders believe the United States can protect itself from widespread destruction—and therefore remove the motivation for a massive US response—that might be enough for an adversary to pull the trigger on a nuclear attack.

Inevitably, at least a handful of nuclear-tipped missiles would make it through the Golden Dome shield in such a scenario, and countless Americans would die, critics say. People made similar arguments against former President Ronald Reagan’s Strategic Defense Initiative, commonly known as Star Wars, before its cancellation. Ars interviewed Rep. Seth Moulton (D-Mass.) earlier this year about why he’s against Golden Dome.

Getting boxed in

Following orders from the Trump administration, military officials have said little about Golden Dome after a flurry of White House announcements and Oval Office photo ops earlier this year. The shield will consist of hundreds or thousands of Space-Based Interceptors on satellites prepositioned in low-Earth orbit, ready to fire small rockets to strike any ballistic missile that threatens the United States. No one is prepared to say how many interceptors or how long it will take to deploy a comprehensive space-based defense system.

In order to work, Golden Dome also needs ground-based interceptors, radar arrays, missile tracking and data relay satellites, and a sophisticated computer network to tie it all together. Some of these capabilities exist today, but space-based interceptors (SBIs) do not. The Trump administration claims an initial homeland defense system could be ready by mid-2028 at a cost of $175 billion. But that won’t be the final product, and Pentagon officials haven’t said how long or how much it will cost to build out the entire network.

The four-star general in charge of developing Golden Dome, Space Force Gen. Michael Guetlein, defended the military’s reluctance to release more information to taxpayers. He said the military is sharing more about the Golden Dome architecture in “one-on-one” meetings with 200 to 300 companies vying for a lucrative slice of the program.

Gen. Michael Guetlein testifies before the Senate Armed Services Committee about joint force readiness in Washington, DC, on March 12, 2025. Credit: Eric Dietrich/US Air Force

“That transparency may not come in an industry symposium, but it is coming in one-on-ones,” Guetlein said in a discussion Saturday at the Reagan National Defense Forum. “It’s not coming in an industry symposium because you guys are not the only ones in the audience, and there are people in that audience that I don’t want to know what we’re doing.

“But I do know that… our industrial partners are all in on it and are supported, so they are pretty well-informed to the max amount I can inform them today,” Guetlein said. “We’ll continue to do more.”

Some public discourse is necessary to establish deterrence. Guetlein said he “hopes” to release more information to the public next year. For now, nearly 11 months after Trump’s order kick-started Golden Dome, nearly all of it remains under a veil of secrecy.

“We will have some things in place that allow us to start having those kind of conversations,” Guetlein said. “I think A House of Dynamite was a good place to start the dialogue. It opens up the dialogue to the American public that we have to change the defense equation. We have to provide decision space to the United States president so that we don’t get ourselves boxed in.”

Spoiler alert

The military’s Ground-based Midcourse Defense (GMD) system, which would be used to destroy an incoming missile before it ever reaches US airspace, has a success rate of less than 60 percent in testing. There are just 44 ground-based midcourse interceptors in the Pentagon’s inventory, enough to mount a defense against one or several missiles from a rogue state like North Korea, but not enough to put a dent in any large-scale nuclear attack.

The next part of this story contains spoilers.

In A House of Dynamite, the military launches two GBIs to destroy a single ballistic missile of unknown origin heading for the United States. Both interceptors fail. What’s more, for a nuclear-armed missile to actually reach a target in the United States, one assumes defense and deterrence have also failed. The president must decide what to do next. Respond with an attack? If so, attack where?

Idris Elba portrays an unnamed president of the United States in *A House of Dynamite*. Credit: Netflix

The film succeeds in creating suspense. It also gets a lot of technical details right, even if the ending left many viewers disappointed. According to at least two senior Pentagon leaders, the film helps illustrate why it’s time for Golden Dome. It is worth noting that the filmmakers behind A House of Dynamite—director Kathryn Bigelow and screenwriter Noah Oppenheim—said one of their goals with the movie was to show that missile defense systems are not infallible.

But Troy Meink, the secretary of the Air Force, said no president should ever wrestle with the decisions facing Elba’s character in the final minutes of the film.

“One of the things that A House of Dynamite really highlighted is the fact that you can’t let yourself be in a situation where you either have a very low chance of stopping it, or you go full nuke in return,” Meink said. “You just can’t let yourself get in that situation, and that’s why we need this [Golden Dome].”

Non-disclosure

There was a bit of news that Guetlein briefly mentioned in Saturday’s discussion at the Ronald Reagan Presidential Library. Guetlein confirmed the Pentagon recently awarded 18 contracts to develop technology for SBIs capable of targeting enemy missiles during their boost phase, before they reach their top speeds and have an opportunity to deploy countermeasures.

The Space Force awarded the prototype development deals in November, but officials didn’t say how many or which companies received the contracts. Guetlein said the number was 18. The value of each contract falls below the $9 million public disclosure threshold for Pentagon programs.

At the same time, Guetlein said the military is working with companies on command-and-control and fire-control software.

“We are in discussions with the department on the need to acquire more transport capability, which is the ability to move data through space, more sensing capability, more missile warning, missile track capability,” he said. “We are waiting on those contracts to come in and to move forward on those, but we have given our needs to the department.”

This illustration released by Apex depicts a Space-Based Interceptor fired from a satellite in low-Earth orbit. Credit: Apex

Next, the Space Force plans to award prototype contracts for midcourse SBIs, perhaps as soon as February, according to a procurement document released by Space Systems Command’s program executive office for space combat power. Like their ground-based counterparts already on alert, these kinds of interceptors would be used to take out ballistic missiles as they coast through space.

Several death knells doomed the Reagan-era Star Wars plan. One was political: the fall of the Soviet Union. The others were economic and technical. It was not possible to affordably build and launch numerous SBIs, but the cost of space access is coming down, largely thanks to reusable rockets. Many of the technologies that will underpin Golden Dome, like automation and AI, sensor sensitivity, and laser communications in space, were simply not available 40 years ago.

It also helps that the Pentagon has a head-start on Golden Dome with GMD and an inventory of smaller interceptors for shorter-range missiles. Key elements of a space-based sensor network required for detecting, tracking, and targeting ballistic and hypersonic missiles started launching in 2024.

But SBIs don’t yet exist. They are among the most challenging, and most controversial, parts of Golden Dome. That’s why the Space Force is focusing on awarding the first batches of SBI contracts.

“We are meeting all of our… objectives to date,” said Guetlein, who previously compared Golden Dome to the Manhattan Project. “I think we’re on a good trajectory. But I will tell you, it is not a gimme putt. It is an extremely complex thing that we’re getting ready to do.”

Asked why we need Golden Dome, the man in charge points to a Hollywood film Read More »

ULA aimed to launch up to 10 Vulcan rockets this year—it will fly just once

launch, military space, Science, Space, united launch alliance, US Space Force, vulcan / Paul Patrick / November 26, 2025

Engineers traced the problem to a manufacturing defect in an insulator on the solid rocket motor, and telemetry data from all four boosters on the following flight in August exhibited “spot-on” performance, according to Bruno. But officials decided to recover the spent expendable motor casings from the Atlantic Ocean for inspections to confirm there were no other surprises or close calls.

The hangup delaying the next Vulcan launches isn’t in rocket production. ULA has hardware for multiple Vulcan rockets in storage at Cape Canaveral Space Force Station, Florida.

Instead, one key reason for Vulcan’s past delays has been the rocket’s performance, particularly its solid rocket boosters. It isn’t clear whether the latest delays are related to the readiness of the Space Force’s GSSAP satellites (the next GPS satellite to fly on Vulcan has been available for launch since 2022), the inspections of Vulcan’s solid rocket motors, or something else.

Vulcan booster cores in storage at Cape Canaveral Space Force Station, Florida. Credit: United Launch Alliance

A Space Systems Command spokesperson told Ars that “appropriate actions are being executed to ensure a successful USSF-87 mission … The teams analyze all hardware as well as available data from previous missions to evaluate space flight worthiness of future missions.”

The spokesperson did not provide a specific answer to a question from Ars about inspections on the solid rocket motors from the most recent Vulcan flight.

ULA’s outfitting of a new rocket assembly hangar and a second mobile launch platform for the Vulcan rocket at Cape Canaveral has also seen delays. With so many launches in its backlog, ULA needs capacity to stack and prepare at least two rockets in different buildings at the same time. Eventually, the company’s goal is to launch at an average clip of twice per month.

On Monday, ground crews at Cape Canaveral moved the second Vulcan launch platform to the company’s launch pad for fit checks and “initial technical testing.” This is a good sign that the company is moving closer to ramping up the Vulcan launch cadence, but it’s now clear it won’t happen this year.

Vulcan’s slow launch rate since its first flight in January 2024 is not unusual for new rockets. It took 28 months for SpaceX’s Falcon 9 and ULA’s Atlas V to reach their fourth flight, a timeline that the Vulcan vehicle will reach in May 2026.

The Delta IV rocket from ULA flew its fourth mission 25 months after debuting in 2002. Europe’s Ariane 6 rocket reached its fourth flight in 16 months, but it shares more in common with its predecessor than the others. SpaceX’s Starship also had a faster ramp-up, with its fourth test flight coming less than 14 months after the first.

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Rivals object to SpaceX’s Starship plans in Florida—who’s interfering with whom?

cape canaveral space force station, Kennedy Space Center, launch, military space, NASA, new glenn, Space, spacex, starship, united launch alliance, US Space Force / Kris Guyer / November 24, 2025

“We’re going to continue to treat any LOX-methane vehicle with 100 percent TNT blast equivalency.”

Artist’s illustration of Starships stacked on two launch pads at the Space Force’s Space Launch Complex 37 at Cape Canaveral, Florida. Credit: SpaceX

The commander of the military unit responsible for running the Cape Canaveral spaceport in Florida expects SpaceX to begin launching Starship rockets there next year.

Launch companies with facilities near SpaceX’s Starship pads are not pleased. SpaceX’s two chief rivals, Blue Origin and United Launch Alliance, complained last year that SpaceX’s proposal of launching as many as 120 Starships per year from Florida’s Space Coast could force them to routinely clear personnel from their launch pads for safety reasons.

This isn’t the first time Blue Origin and ULA have tried to throw up roadblocks in front of SpaceX. The companies sought to prevent NASA from leasing a disused launch pad to SpaceX in 2013, but they lost the fight.

Col. Brian Chatman, commander of a Space Force unit called Space Launch Delta 45, confirmed to reporters on Friday that Starship launches will sometimes restrict SpaceX’s neighbors from accessing their launch pads—at least in the beginning. Space Launch Delta 45, formerly known as the 45th Space Wing, operates the Eastern Range, which oversees launch safety from Cape Canaveral Space Force Station and NASA’s nearby Kennedy Space Center.

Chatman’s unit is responsible for ensuring all personnel remain outside of danger areas during testing and launch operations. The range’s responsibility extends to public safety outside the gates of the spaceport.

“There is no better time to be here on the Space Coast than where we are at today,” Chatman said. “We are breaking records on the launch manifest. We are getting capability on orbit that is essential to national security, and we’re doing that at a time of strategic challenge.”

SpaceX is well along in constructing a Starship launch site on NASA property at Kennedy Space Center within the confines of Launch Complex-39A, where SpaceX also launches its workhorse Falcon 9 rocket. The company wants to build another Starship launch site on Space Force property a few miles to the south.

“Early to mid-next year is when we anticipate Starship coming out here to be able to launch,” Chatman said. “We’ll have the range ready to support at that time.”

Enter the Goliath

Starship and its Super Heavy booster combine to form the largest rocket ever built. Its newest version stands more than 400 feet (120 meters) tall with more than 11 million pounds (5,000 metric tons) of combustible methane and liquid oxygen propellants. That will be replaced by a taller rocket, perhaps as soon as 2027, with about 20 percent more propellant onboard.

While there’s also risk with Starships and Super Heavy boosters returning to Cape Canaveral from space, safety officials worry about what would happen if a Starship and Super Heavy booster detonated with their propellant tanks full. The concern is the same for all rockets, which is why officials evacuate predetermined keep-out zones around launch pads that are fueled up for flight.

But the keep-out zones around SpaceX’s Starship launch pads will extend farther than those around the other launch sites at Cape Canaveral. First, Starship is simply much bigger and uses more propellant than any other rocket. Secondly, Starship’s engines consume methane fuel in combination with liquid oxygen, a blend commonly known as LOX/methane or methalox.

And finally, Starship lacks the track record of older rockets like the Falcon 9, adding a degree of conservatism to the Space Force’s risk calculations. Other launch pads will inevitably fall within the footprint of Starship’s range safety keep-out zones, also known as blast danger areas, or BDAs.

SpaceX’s Starship and Super Heavy booster lift off from Starbase, Texas, in March 2025. Credit: SpaceX

The danger area will be larger for an actual launch, but workers will still need to clear areas closer to Starship launch pads during static fire tests, when the rocket fires its engines while remaining on the ground. This is what prompted ULA and Blue Origin to lodge their protests.

“They understand neighboring operations,” Chatman said in a media roundtable on Friday. “They understand that we will allow the maximum efficiency possible to facilitate their operations, but there will be times that we’re not going to let them go to their launch complex because it’s neighboring a hazardous activity.”

The good news for these other companies is that Eastern Range’s keep-out zones will almost certainly get smaller by the time SpaceX gets anywhere close to 120 Starship launches per year. SpaceX’s Falcon 9 is currently launching at a similar cadence. The blast danger areas for those launches are small and short-lived because the Space Force’s confidence in the Falcon 9’s safety is “extremely high,” Chatman said.

“From a blast damage assessment perspective, specific to the Falcon 9, we know what that keep-out area is,” Chatman said. “It’s the new combination of new fuels—LOX/methane—which is kind of a game-changer as we look at some of the heavy vehicles that are coming to launch. We just don’t have the analysis on to be able to say, ‘Hey, from a testing perspective, how small can we reduce the BDA and be safe?’”

Methane has become a popular fuel choice, supplanting refined kerosene, liquid hydrogen, or solid fuels commonly used on previous generations of rockets. Methane leaves behind less soot than kerosene, easing engine reusability, while it’s simpler to handle than liquid hydrogen.

Aside from Starship, Blue Origin’s New Glenn and ULA’s Vulcan rockets use liquified natural gas, a fuel very similar to methane. Both rockets are smaller than Starship, but Blue Origin last week unveiled the design of a souped-up New Glenn rocket that will nearly match Starship’s scale.

A few years ago, NASA, the Space Force, and the Federal Aviation Administration decided to look into the explosive potential of methalox rockets. There had been countless tests of explosions of gaseous methane, but data on detonations of liquid methane and liquid oxygen was scarce at the time—just a couple of tests at less than 10 metric tons, according to NASA. So, the government’s default position was to assume an explosion would be equivalent to the energy released by the same amount of TNT. This assumption drives the large keep-out zones the Space Force has drawn around SpaceX’s future Starship launch pads, one of which is seen in the map below.

This map from a Space Force environmental impact statement shows potential restricted access zones around SpaceX’s proposed Starship launch site at Space Launch Complex-37. The restricted zones cover launch pads operated by United Launch Alliance, Relativity Space, and Stoke Space. Credit: SpaceX

Spending millions to blow stuff up

Chatman said the Space Force is prepared to update its blast danger areas once its government partners, SpaceX, and Blue Origin complete testing and analyze their results. Over dozens of tests, engineers are examining how methane and liquid oxygen react to different kinds of accidents, such as impact velocity, pressure, mass ratio, or how much propellant is in the mix.

“That is ongoing currently,” Chatman said. “[We are] working in close partnership with SpaceX and Blue Origin on the LOX/methane combination and the explicit equivalency to identify how much we can … reduce that blast radius. Those discussions are happening, have been happening the last couple years, and are looking to culminate here in ’26.

“Until we get that data from the testing that is ongoing and the analysis that needs to occur, we’re going to continue to treat any LOX-methane vehicle with 100 percent TNT blast equivalency, and have a maximized keep-out zone, simply from a public safety perspective,” Chatman said.

The data so far show promising results. “We do expect that BDA to shrink,” he said. “We expect that to shrink based on some of the initial testing that has been done and the initial data reviews that have been done.”

That’s imperative, not just for Starship’s neighbors at the Cape Canaveral spaceport, but for SpaceX itself. The company forecasts a future in which it will launch Starships more often than the Falcon 9, requiring near-continuous operations at multiple launch pads.

Chatman mentioned one future scenario in which SpaceX might want to launch Starships in close proximity to one another from neighboring pads.

“At that point in the future, I do anticipate the blast damage assessments to shrink down based on the testing that will have been accomplished and dataset will have been reviewed, [and] that we’ll be in a comfortable set to be able to facilitate all launch operations. But until we have that data, until I’m comfortable with what that data shows, with regards to reducing the BDA, keep-out zone, we’re going to continue with the 100 percent TNT equivalency just from a public safety perspective.”

SpaceX has performed explosive LOX/methane tests, including the one seen here, at its development facility in McGregor, Texas. Credit: SpaceX

The Commercial Space Federation, a lobbying group, submitted written testimony to Congress in 2023 arguing the government should be using “existing industry data” to inform its understanding of the explosive potential methane and liquid oxygen. That data, the federation said, suggests the government should set its TNT blast equivalency to no greater than 25 percent, a change that would greatly reduce the size of keep-out zones around launch pads. The organization’s members include prominent methane users SpaceX, Blue Origin, Relativity Space, and Stoke Space, all of which have launch sites at Cape Canaveral.

The government’s methalox testing plans were expected to cost at least $80 million, according to the Commercial Space Federation.

The concern among engineers is that liquid oxygen and methane are highly miscible, meaning they mix together easily, raising the risk of a “condensed phase detonation” with “significantly higher overpressures” than rockets with liquid hydrogen or kerosene fuels. Small-scale mixtures of liquid oxygen and liquified natural gas have “shown a broad detonable range with yields greater than that of TNT,” NASA wrote in 2023.

SpaceX released some basic results of its own methalox detonation tests in September, before the government draws its own conclusions on the matter. The company said it conducted “extensive testing” to refine blast danger areas to “be commensurate with the physics of new launch systems.”

Like the Commercial Space Federation, SpaceX said government officials are relying on “highly conservative approaches to establishing blast danger areas, simply because they lack the data to make refined, accurate clear zones. In the absence of data, clear areas of LOX/methane rockets have defaulted to very large zones that could be disruptive to operations.”

More like an airport

SpaceX said it has conducted sub-scale methalox detonation tests “in close collaboration with NASA,” while also gathering data from full-scale Starship tests in Starbase, Texas, including information from test flights and from recent ground test failures. SpaceX controls much of the land around its South Texas facility, so there’s little interruption to third parties when Starships launch from there.

“With this data, SpaceX has been able to establish a scientifically robust, physics-based yield calculation that will help ‘fill the gap’ in scientific knowledge regarding LOX/methane rockets,” SpaceX said.

The company did not disclose the yield calculation, but it shared maps showing its proposed clear areas around the future Starship launch sites at Cape Canaveral and Kennedy Space Center. They are significantly smarter than the clear areas originally envisioned by the Space Force and NASA, but SpaceX says it uses “actual test data on explosive yield and include a conservative factor of safety.”

The proposed clear distances will have no effect on any other operational launch site or on traffic on the primary north-south road crossing the spaceport, the company said. “SpaceX looks forward to having an open, honest, and reasonable discussion based on science and data regarding spaceport operations with industry colleagues.”

SpaceX will have that opportunity next month. The Space Force and NASA are convening a “reverse industry day” in mid-December during which launch companies will bring their ideas for the future of the Cape Canaveral spaceport to the government. The spaceport has hosted 101 space launches so far this year, an annual record dominated by SpaceX’s rapid-fire Falcon 9 launch cadence.

Chatman anticipates about the same number—perhaps 100 to 115 launches—from Florida’s Space Coast next year, and some forecasts show 300 to 350 launches per year by 2035. The numbers could go down before they rise again. “As we bring on larger lift capabilities like Starship and follow-on large launch capabilities out here to the Eastern Range, that will reduce the total number of launches, because we can get more mass to orbit with heavier lift vehicles,” Chatman said.

Blue Origin’s first recovered New Glenn booster returned to the company’s launch pad at Cape Canaveral, Florida, last week after a successful launch and landing. Credit: Blue Origin

Launch companies have some work to do to make those numbers become real. Space Force officials have identified their own potential bottlenecks, including a shortage of facilities for preparing satellites for launch and the flow of commodities like propellants and high-pressure gases into the spaceport.

Concerns as mundane as traffic jams are now enough of a factor to consider using automated scanners at vehicle inspection points and potentially adding a dedicated lane for slow-moving transporters carrying rocket boosters from one place to another across the launch base, according to Chatman. This is becoming more important as SpaceX, and now Blue Origin, routinely shuttle their reusable rockets from place to place.

Space Force officials largely attribute the steep climb in launch rates at Cape Canaveral to the launch industry’s embrace of automated self-destruct mechanisms. These pyrotechnic devices have largely replaced manual flight termination systems, which require ground support from a larger team of range safety engineers, including radar operators and flight control officers with the authority to send a destruct command to the rocket if it flies off course. Now, that is all done autonomously on most US launch vehicles.

The Space Force mandated that launch companies using military spaceports switch to autonomous safety systems by October 1 2025, but military officials issued waivers for human-in-the-loop destruct devices to continue flying on United Launch Alliance’s Atlas V rocket, NASA’s Space Launch System, and the US Navy’s ballistic missile fleet. That means those launches will be more labor-intensive for the Space Force, but the Atlas V is nearing retirement, and the SLS and the Navy only occasionally appear on the Cape Canaveral launch schedule.

Listing image: SpaceX

Rivals object to SpaceX’s Starship plans in Florida—who’s interfering with whom? Read More »

Intuitive Machines—known for its Moon landers—will become a military contractor

artemis, Commercial space, golden dome, intuitive machines, lanteris, Maxar, military space, moon, Space / Mike M. / November 10, 2025

The company’s success in just reaching the Moon’s surface has put it in position to become one of NASA’s leading lunar contractors. NASA has awarded more robotic lunar lander contracts to Intuitive Machines than to any other company, with two missions complete and at least two more in development. Intuitive Machines is also one of the companies NASA selected to compete for a contract to develop an unpressurized Moon buggy for astronauts to drive across the lunar surface.

Branching out

The addition of Lanteris will make Intuitive Machines competitive for work outside of the lunar realm.

“This marks the moment Intuitive Machines transitions from a lunar company to a multi-domain space prime, setting the pace for how the industry’s next generation will operate,” said Steve Altemus, the company’s CEO.

Altemus said Lanteris will initially become a subsidiary of Intuitive Machines, followed by a complete integration under the Intuitive Machines banner.

Lanteris builds numerous satellites for the US Space Force, NASA, and commercial customers. The company can trace its history to 1957, when it was established as the Western Development Laboratories division of Philco Corporation, a battery and electronics manufacturer founded in 1892.

Philco constructed a satellite factory in Palo Alto, California, and produced its first spacecraft for launch in 1960. The satellite, named Courier 1B, made history as the world’s first active repeater communications relay station in orbit, meaning it could receive messages from the ground, store them, and then retransmit them.

The contractor underwent numerous mergers and acquisitions, becoming part of Ford Motor Company, Loral Corporation, and the Canadian company MDA Space before it was bought up by Advent more than two years ago. In nearly 70 years, the company has produced more than 300 satellites, many of them multi-ton platforms for broadcasting television signals from geosynchronous orbit more than 22,000 miles (nearly 36,000 kilometers) over the equator. Lanteris has contracts to build dozens more satellites in the next few years.

Intuitive Machines—known for its Moon landers—will become a military contractor Read More »

SpaceX has plans to launch Falcon Heavy from California—if anyone wants it to

Commercial space, falcon 9, falcon heavy, launch, military space, Science, slc-6, Space, space force, spacex, Vandenberg space force base / Tim Belzer / October 16, 2025

There’s more to the changes at Vandenberg than launching additional rockets. The authorization gives SpaceX the green light to redevelop Space Launch Complex 6 (SLC-6) to support Falcon 9 and Falcon Heavy missions. SpaceX plans to demolish unneeded structures at SLC-6 (pronounced “Slick 6”) and construct two new landing pads for Falcon boosters on a bluff overlooking the Pacific just south of the pad.

SpaceX currently operates from a single pad at Vandenberg—Space Launch Complex 4-East (SLC-4E)—a few miles north of the SLC-6 location. The SLC-4E location is not configured to launch the Falcon Heavy, an uprated rocket with three Falcon 9 boosters bolted together.

SLC-6, cocooned by hills on three sides and flanked by the ocean to the west, is no stranger to big rockets. It was first developed for the Air Force’s Manned Orbiting Laboratory program in the 1960s, when the military wanted to put a mini-space station into orbit for astronauts to spy on the Soviet Union. Crews readied the complex to launch military astronauts on top of Titan rockets, but the Pentagon canceled the program in 1969 before anything actually launched from SLC-6.

NASA and the Air Force then modified SLC-6 to launch space shuttles. The space shuttle Enterprise was stacked vertically at SLC-6 for fit checks in 1985, but the Air Force abandoned the Vandenberg-based shuttle program after the Challenger accident in 1986. The launch facility sat mostly dormant for nearly two decades until Boeing, and then United Launch Alliance, took over SLC-6 and began launching Delta IV rockets there in 2006.

The space shuttle Enterprise stands vertically at Space Launch Complex-6 at Vandenberg. NASA used the shuttle for fit checks at the pad, but it never launched from California. Credit: NASA

ULA launched its last Delta IV Heavy rocket from California in 2022, leaving the future of SLC-6 in question. ULA’s new rocket, the Vulcan, will launch from a different pad at Vandenberg. Space Force officials selected SpaceX in 2023 to take over the pad and prepare it to launch the Falcon Heavy, which has the lift capacity to carry the military’s most massive satellites into orbit.

No big rush

Progress at SLC-6 has been slow. It took nearly a year to prepare the Environmental Impact Statement. In reality, there’s no big rush to bring SLC-6 online. SpaceX has no Falcon Heavy missions from Vandenberg in its contract backlog, but the company is part of the Pentagon’s stable of launch providers. To qualify as a member of the club, SpaceX must have the capability to launch the Space Force’s heaviest missions from the military’s spaceports at Vandenberg and Cape Canaveral, Florida.

SpaceX has plans to launch Falcon Heavy from California—if anyone wants it to Read More »

Pentagon contract figures show ULA’s Vulcan rocket is getting more expensive

falcon 9, falcon heavy, launch, military space, Science, Space, spacex, united launch alliance, US Space Force, vulcan / Mike M. / October 4, 2025

A SpaceX Falcon Heavy rocket with NASA’s Psyche spacecraft launches from NASA’s Kennedy Space Center in Florida on October 13, 2023. Credit: Chandan Khanna/AFP via Getty Images

The launch orders announced Friday comprise the second batch of NSSL Phase 3 missions the Space Force has awarded to SpaceX and ULA.

It’s important to remember that these prices aren’t what ULA or SpaceX would charge a commercial satellite customer. The US government pays a premium for access to space. The Space Force, the National Reconnaissance Office, and NASA don’t insure their launches like a commercial customer would do. Instead, government agencies have more insight into their launch contractors, including inspections, flight data reviews, risk assessments, and security checks. Government missions also typically get priority on ULA and SpaceX’s launch schedules. All of this adds up to more money.

A heavy burden

Four of the five launches awarded to SpaceX Friday will use the company’s larger Falcon Heavy rocket, according to Lt. Col. Kristina Stewart at Space Systems Command. One will fly on SpaceX’s workhorse Falcon 9. This is the first time a majority of the Space Force’s annual launch orders has required the lift capability of a Falcon Heavy, with three Falcon 9 booster cores combining to heave larger payloads into space.

All versions of ULA’s Vulcan rocket use a single core booster, with varying numbers of strap-on solid-fueled rocket motors to provide extra thrust off the launch pad.

Here’s a breakdown of the seven new missions assigned to SpaceX and ULA:

• USSF-149: Classified payload on a SpaceX Falcon 9 from Florida

• USSF-63: Classified payload on a SpaceX Falcon Heavy from Florida

• USSF-155: Classified payload SpaceX Falcon Heavy from Florida

• USSF-205: WGS-12 communications satellite on a SpaceX Falcon Heavy from Florida

• NROL-86: Classified payload on a SpaceX Falcon Heavy from Florida

• USSF-88: GPS IIIF-4 navigation satellite on a ULA Vulcan VC2S (two solid rocket boosters) from Florida

• NROL-88: Classified payload on a ULA Vulcan VC4S (four solid rocket boosters) from Florida

Pentagon contract figures show ULA’s Vulcan rocket is getting more expensive Read More »

Trump’s Golden Dome will cost 10 to 100 times more than the Manhattan Project

american enterprise institute, Department of Defense, golden dome, military space, missile defense, Science, Space, US Space Force / Mike M. / September 18, 2025

Instead, the $252 billion option would include additional Patriot missile batteries and air-control squadrons, dozens of new aircraft, and next-generation systems to defend against drone and cruise missile attacks on major population centers, military bases, and other key areas.

At the other end of the spectrum, Harrison writes that the “most robust air and missile defense shield possible” will cost some $3.6 trillion through 2045, nearly double the life cycle cost of the F-35 fighter jet, the most expensive weapons program in history.

“In his Oval Office announcement, President Trump set a high bar for Golden Dome, declaring that it would complete ‘the job that President Reagan started 40 years ago, forever ending the missile threat to the American homeland and the success rate is very close to 100 percent,'” Harrison writes.

The numbers necessary to achieve this kind of muscular defense are staggering: 85,400 space-based interceptors, 14,510 new air-launched interceptors, 46,904 more surface-launched interceptors, hundreds of new sensors on land, in the air, at sea, and in space to detect incoming threats, and more than 20,000 additional military personnel.

SpaceX’s Starship rocket could offer a much cheaper ride to orbit for thousands of space-based missile interceptors. Credit: SpaceX

No one has placed missile interceptors in space before, and it will require thousands of them to meet even the most basic goals for Golden Dome. Another option Harrison presents in his paper would emphasize fast-tracking a limited number of space-based interceptors that could defend against a smaller attack of up to five ballistic missiles, plus new missile warning and tracking satellites, ground- and sea-based interceptors, and other augmentations of existing missile-defense forces.

That would cost an estimated $471 billion over the next 20 years.

Supporters of the Golden Dome project say it’s much more feasible today to field space-based interceptors than it was in the Reagan era. Commercial assembly lines are now churning out thousands of satellites per year, and it’s cheaper to launch them today than it was 40 years ago.

A report released by the nonpartisan Congressional Budget Office (CBO) in May examined the effect of reduced launch prices on potential Golden Dome architectures. The CBO estimated that the cost of deploying between 1,000 and 2,000 space-based interceptors would be between 30 and 40 percent cheaper today than the CBO found in a previous study in 2004.

But the costs just for deploying up to 2,000 space-based interceptors remain astounding, ranging from $161 billion to $542 billion over 20 years, even with today’s reduced launch prices, according to the CBO. The overwhelming share of the cost today would be developing and building the interceptors themselves, not launching them.

Trump’s Golden Dome will cost 10 to 100 times more than the Manhattan Project Read More »

Pentagon begins deploying new satellite network to link sensors with shooters

falcon 9, launch, military space, Science, Space, space development agency, spacex, US Space Force, Vandenberg space force base, york space systems / Mike M. / September 11, 2025

“This is the first time we’ll have a space layer fully integrated into our warfighting operations.”

A SpaceX Falcon 9 rocket lifts off from Vandenberg Space Force Base, California, with a payload of 21 data-relay satellites for the US military’s Space Development Agency. Credit: SpaceX

The first 21 satellites in a constellation that could become a cornerstone for the Pentagon’s Golden Dome missile-defense shield successfully launched from California Wednesday aboard a SpaceX Falcon 9 rocket.

The Falcon 9 took off from Vandenberg Space Force Base, California, at 7: 12 am PDT (10: 12 am EDT; 14: 12 UTC) and headed south over the Pacific Ocean, heading for an orbit over the poles before releasing the 21 military-owned satellites to begin several weeks of activations and checkouts.

These 21 satellites will boost themselves to a final orbit at an altitude of roughly 600 miles (1,000 kilometers). The Pentagon plans to launch 133 more satellites over the next nine months to complete the build-out of the Space Development Agency’s first-generation, or Tranche 1, constellation of missile-tracking and data-relay satellites.

“We had a great launch today for the Space Development Agency, putting this array of space vehicles into orbit in support of their revolutionary new architecture,” said Col. Ryan Hiserote, system program director for the Space Force’s assured access to space launch execution division.

Over the horizon

Military officials have worked for six years to reach this moment. The Space Development Agency (SDA) was established during the first Trump administration, which made plans for an initial set of demonstration satellites that launched a couple of years ago. In 2022, the Pentagon awarded contracts for the first 154 operational spacecraft. The first batch of 21 data-relay satellites built by Colorado-based York Space Systems is what went up Wednesday.

“Back in 2019, when the SDA was stood up, it was to do two things. One was to make sure that we can do beyond line of sight targeting, and the other was to pace the threat, the emerging threat, in the missile-warning and missile-tracking domain. That’s what the focus has been,” said Gurpartap “GP” Sandhoo, the SDA’s acting director.

Secretary of the Air Force Troy Meink and Sen. Kevin Cramer (R-N.D.) pose with industry and government teams in front of the Space Development’s first 21 operational satellites at Vandenberg Space Force Base, California. Cramer is one the most prominent backers of the Golden Dome program in the US Senate. Credit: US Air Force/Staff Sgt. Daekwon Stith

Historically, the military communications and missile-warning networks have used a handful of large, expensive satellites in geosynchronous orbit some 22,000 miles (36,000 kilometers) above the Earth. This architecture was devised during the Cold War and is optimized for nuclear conflict and intercontinental ballistic missiles.

For example, the military’s ultra-hardened Advanced Extremely High Frequency satellites in geosynchronous orbit are designed to operate through an electromagnetic pulse and nuclear scintillation. The Space Force’s missile-warning satellites are also in geosynchronous orbit, with infrared sensors tuned to detect the heat plume of a missile launch.

The problem? Those satellites cost more than $1 billion a pop. They’re also vulnerable to attack from a foreign adversary. Pentagon officials say the SDA’s satellite constellation, officially called the Proliferated Warfighter Space Architecture, is tailored to detect and track more modern threats, such as smaller missiles and hypersonic weapons carrying conventional warheads. It’s easier for these missiles to evade the eyes of older early warning satellites.

What’s more, the SDA’s fleet in low-Earth orbit will have numerous satellites. Losing one or several satellites to an attack would not degrade the constellation’s overall capability. The SDA’s new relay satellites cost between $14 and $15 million each, according to Sandhoo. The total cost of the first tranche of 154 operational satellites totals approximately $3.1 billion.

Multi-mission satellites

These satellites will not only detect and track ballistic and hypersonic missile launches; they will also transmit signals between US forces using an existing encrypted tactical data link network known as Link 16. This UHF system is used by NATO and other US allies to allow military aircraft, ships, and land forces to share tactical information through text messages, pictures, data, and voice communication in near real time, according to the SDA’s website.

Up to now, Link 16 radios were ubiquitous on fighter jets, helicopters, naval vessels, and missile batteries. But they had a severe limitation. Link 16 was only able to close a radio link with a clear line of sight. The Space Development Agency’s satellites will change that, providing direct-to-weapon connectivity from sensors to shooters on Earth’s surface, in the air, and in space.

The relay satellites, which the SDA calls the transport layer, are also equipped with Ka-band and laser communication terminals for higher-bandwidth connectivity.

“What the transport layer does is it extends beyond the line of sight,” Sandhoo said. “Now, you’re able to talk not only to within a couple of miles with your Link 16 radios, (but) we can use space to, let’s say, go from Hawaii out to Guam using those tactical radios, using a space layer.”

The Space Development Agency’s “Tranche 1” architecture includes 154 operational satellites, 126 for data relay and 28 for missile tracking. With this illustration, the SDA does its best to show how the complex architecture is supposed to work. Credit: Space Development Agency

Another batch of SDA relay satellites will launch next month, and more will head to space in November. In all, it will take 10 launches to fully deploy the SDA’s Tranche 1 constellation. Six of those missions will carry data-relay satellites, and four will carry satellites with sensors to detect and track missile launches. The Pentagon selected several contractors to build the satellites, so the military is not reliant on a single company. The builders of the SDA’s operational satellites include York, Lockheed Martin, Northrop Grumman, and L3Harris.

“We will increase coverage as we get the rest of those launches on orbit,” said Michael Eppolito, the SDA’s acting deputy director.

The satellites will connect with one another using inter-satellite laser links, creating a mesh network with sufficient range to provide regional communications, missile warning, and targeting coverage over the Western Pacific beginning in 2027. US Indo-Pacific Command, which oversees military operations in this region, is slated to become the first combatant command to take up use of the SDA’s satellite constellation.

This is not incidental. US officials see China as the nation’s primary strategic threat, and Indo-Pacific Command would be on the front lines of any future conflict between Chinese and US forces. The SDA has contracts in place for more than 270 second-generation, or Tranche 2, satellites, to further expand the network’s reach. There’s also a third generation in the works, but the Pentagon has paused part of the SDA’s Tranche 3 program to evaluate other architectures, including one offered by SpaceX.

Teaching tactical operators to use the new capabilities offered by the SDA’s satellite fleet could be just as challenging as building the network itself. To do this, the Pentagon plans to put soldiers, sailors, airmen, and marines through “warfighter immersion” training beginning next year. This training will allow US forces to “get used to using space from this construct,” Sandhoo said.

“This is different than how it has been done in the past,” Sandhoo said. “This is the first time we’ll have a space layer actually fully integrated into our warfighting operations.”

The SDA’s satellite architecture is a harbinger for what’s to come with the Pentagon’s Golden Dome system, a missile-defense shield for the US homeland proposed by President Donald Trump in an executive order in January. Congress authorized a down payment on Golden Dome in July, the first piece of funding for what the White House says will cost $175 billion over the next three years.

Golden Dome, as currently envisioned, will require thousands of satellites in low-Earth orbit to track missile launches and space-based interceptors to attempt to shoot them down. The Trump administration hasn’t said how much of the shield might be deployed by the end of 2028, or what the entire system might eventually cost.

But the capabilities of the SDA’s satellites will lay the foundation for any regional or national missile-defense shield. Therefore, it seems likely that the military will incorporate the SDA network into Golden Dome, which, at least at first, is likely to consist of technologies already in space or nearing launch. Apart from the Space Development Agency’s architecture in low-Earth orbit (LEO), the Space Force was already developing a new generation of missile-warning satellites to replace aging platforms in geosynchronous orbit (GEO), plus a fleet of missile-warning satellites to fly at a midrange altitude between LEO and GEO.

Air Force Gen. Gregory Guillot, commander of US Northern Command, said in April that Golden Dome “for the first time integrates multiple layers into one system that allows us to detect, track, and defeat multiple types of threats that affect us in different domains.

“So, while a lot of the components and the requirements were there in the past, this is the first time that it’s all tied together in one system,” he said.

Pentagon begins deploying new satellite network to link sensors with shooters Read More »

Trump’s move of SPACECOM to Alabama has little to do with national security

Alabama, Colorado, Donald Trump, military space, national security, redstone arsenal, Science, Space, us space command, US Space Force / Kris Guyer / September 3, 2025

The Pentagon says the move will save money, but acknowledges risk to military readiness.

President Donald Trump speaks to the media in the Oval Office at the White House on September 2, 2025 in Washington, DC. Credit: Alex Wong/Getty Images

President Donald Trump announced Tuesday that US Space Command will be relocated from Colorado to Alabama, returning to the Pentagon’s plans for the command’s headquarters from the final days of Trump’s first term in the White House.

The headquarters will move to the Army’s Redstone Arsenal in Huntsville, Alabama. Trump made the announcement in the Oval Office, flanked by Republican members of the Alabama congressional delegation.

The move will “help America defend and dominate the high frontier,” Trump said. It also marks another twist on a contentious issue that has pitted Colorado and Alabama against one another in a fight for the right to be home to the permanent headquarters of Space Command (SPACECOM), a unified combatant command responsible for carrying out military operations in space.

Space Command is separate from the Space Force and is made up of personnel from all branches of the armed services. The Space Force, on the other hand, is charged with supplying personnel and technology for use by multiple combatant commands. The newest armed service, established in 2019 during President Trump’s first term, is part of the Department of the Air Force, which also had the authority for recommending where to base Space Command’s permanent headquarters.

“US Space Command stands ready to carry out the direction of the president following today’s announcement of Huntsville, Alabama, as the command’s permanent headquarters location,” SPACECOM wrote on its official X account.

Military officials in the first Trump administration considered potential sites in Colorado, Florida, Nebraska, New Mexico, and Texas before the Air Force recommended basing Space Command in Huntsville, Alabama, on January 13, 2021, a week before Trump left office.

Members of Colorado’s congressional delegation protested the decision, suggesting the recommendation was political. Trump won a larger share of votes in Alabama in 2016, 2020, and 2024 than in any of the other states in contention. On average, a higher percentage of Colorado’s citizens cast their votes against Trump than in the other five states vying for Space Command’s permanent headquarters.

Trump’s reasons

Trump cited three reasons Tuesday for basing Space Command in Alabama. He noted Redstone Arsenal’s proximity to other government and industrial space facilities, the persistence of Alabama officials in luring the headquarters away from Colorado, and Colorado’s use of mail-in voting, a policy that has drawn Trump’s ire but is wholly unrelated to military space matters.

“That played a big factor, also,” Trump said of Colorado’s mail-in voting law.

None of the reasons for the relocation that Trump mentioned in his remarks on Tuesday explained why Alabama is a better place for Space Command’s headquarters than Colorado, although the Air Force has pointed to cost savings as a rationale for the move.

A Government Accountability Office (GAO) investigation concluded in 2022 that the Air Force did not follow “best practices” in formulating its recommendation to place Space Command at Redstone Arsenal, leading to “significant shortfalls in its transparency and credibility.”

A separate report in 2022 from the Pentagon’s own inspector general concluded the Air Force’s basing decision process was “reasonable” and complied with military policy and federal law, but criticized the decision-makers’ record-keeping.

Former President Joe Biden’s secretary of the Air Force, Frank Kendall, stood by the recommendation in 2023 to relocate Space Command to Alabama, citing an estimated $426 million in cost savings due to lower construction and personnel costs in Huntsville relative to Colorado Springs. However, since then, Space Command achieved full operational capability at Peterson Space Force Base, Colorado.

Now-retired Army Gen. James Dickinson raised concerns about moving Space Command from Colorado to Alabama. Credit: US Space Force/Tech. Sgt. Luke Kitterman

Army Gen. James Dickinson, head of Space Command from 2020 until 2023, favored keeping the headquarters in Colorado, according to a separate inspector general report released earlier this year.

“Mission success is highly dependent on human capital and infrastructure,” Dickinson wrote in a 2023 memorandum to the secretary of the Air Force. “There is risk that most of the 1,000 civilians, contractors, and reservists will not relocate to another location.”

One division chief within Space Command’s plans and policy directorate told the Pentagon’s inspector general in May 2024 that they feared losing 90 percent of their civilian workforce if the Air Force announced a relocation. A representative of another directorate told the inspector general’s office that they could say “with certainty” only one of 25 civilian employees in their division would move to a new headquarters location.

Officials at Redstone Arsenal and information technology experts at Space Command concluded it would take three to four years to construct temporary facilities in Huntsville with the same capacity, connectivity, and security as those already in use in Colorado Springs, according to the DoD inspector general.

Tension under Biden

Essentially, the inspector general reported, officials at the Pentagon made cost savings their top consideration in where to garrison Space Command. Leaders at Space Command prioritized military readiness.

President Biden decided in July 2023 that Space Command’s headquarters would remain in Colorado Springs. The decision, according to the Pentagon’s press secretary at the time, would “ensure peak readiness in the space domain for our nation during a critical period.” Alabama lawmakers decried Biden’s decision in favor of Colorado, claiming it, too, was politically motivated.

Space Command reached full operational capability at its headquarters at Peterson Space Force Base, Colorado, two years ahead of schedule in December 2023. At the time, Space Command leaders said they could only declare Space Command fully operational upon the selection of a permanent headquarters.

Now, a year-and-a-half later, the Trump administration will uproot the headquarters and move it more than 1,000 miles to Alabama. But it hasn’t been smooth sailing for Space Command in Colorado.

A new report by the GAO published in May said Space Command faced “ongoing personnel, facilities, and communications challenges” at Peterson, despite the command’s declaration of full operational capability. Space Command officials told the GAO the command’s posture at Peterson is “not sustainable long term and new military construction would be needed” in Colorado Springs.

Space Command was originally established in 1985. The George W. Bush administration later transferred responsibility for military space activities to the US Strategic Command, as part of a post-9/11 reorganization of the military’s command structure. President Trump reestablished Space Command in 2019, months before Congress passed legislation to make the Space Force the nation’s newest military branch.

Throughout its existence, Space Command has been headquartered at Peterson Space Force Base in Colorado Springs. But now, Pentagon officials say the growing importance of military space operations and potentially space warfare requires Space Command to occupy a larger headquarters than the existing facility at Peterson.

Peterson Space Force Base is also the headquarters of North American Aerospace Defense Command, or NORAD, US Northern Command, and Space Operations Command, all of which work closely with Space Command. Space Command officials told the GAO there were benefits in being co-located with operational space missions and centers, where engineers and operators control some of the military’s most important spacecraft in orbit.

Several large space companies also have significant operations or headquarters in the Denver metro area, including Lockheed Martin, United Launch Alliance, BAE Systems, and Sierra Space.

In Alabama, ULA and Blue Origin operate rocket and engine factories near Huntsville. NASA’s Marshall Space Flight Center and the Army’s Space and Missile Defense Command are located at Redstone Arsenal itself.

The headquarters building at Peterson Space Force Base, Colorado. Credit: US Space Force/Keefer Patterson

Colorado’s congressional delegation—six Democrats and four Republicans—issued a joint statement Tuesday expressing their disappointment in Trump’s decision.

“Today’s decision to move US Space Command’s headquarters out of Colorado and to Alabama will directly harm our state and the nation,” the delegation said in a statement. “We are united in fighting to reverse this decision. Bottom line—moving Space Command headquarters weakens our national security at the worst possible time.”

The relocation of Space Command headquarters is estimated to bring about 1,600 direct jobs to Huntsville, Alabama. The area surrounding the headquarters will also derive indirect economic benefits, something Colorado lawmakers said they fear will come at the expense of businesses and workers in Colorado Springs.

“Being prepared for any threats should be the nation’s top priority; a crucial part of that is keeping in place what is already fully operational,” the Colorado lawmakers wrote. “Moving Space Command would not result in any additional operational capabilities than what we have up and running in Colorado Springs now. Colorado Springs is the appropriate home for US Space Command, and we will take the necessary action to keep it there.”

Alabama’s senators and representatives celebrated Trump’s announcement Tuesday.

“The Air Force originally selected Huntsville in 2021 based 100 percent on merit as the best choice,” said Rep. Robert Aderholt (R-Alabama). “President Biden reversed that decision based on politics. This wrong has been righted and Space Command will take its place among Huntsville’s world-renowned space, aeronautics, and defense leaders.”

Democratic Colorado Gov. Jared Polis said in a statement that the Trump administration should provide “full transparency” and the “full details of this poor decision.”

“We hope other vital military units and missions are retained and expanded in Colorado Springs. Colorado remains an ideal location for future missions, including Golden Dome,” Polis said, referring to the Pentagon’s proposed homeland missile defense system.

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