Enlarge/ Satellite image of Tropical Storm Debby on Sunday morning.
NOAA
As often happens during the month of July, the Atlantic tropics entered a lull after Hurricane Beryl struck Texas and short-lived Tropical Storm Chris moved into Mexico. But now, with African dust diminishing from the atmosphere and August well under way, the oceans have awoken.
Tropical Storm Debby formed this weekend, and according to forecasters with the National Hurricane Center, the system is likely to reach Category 1 hurricane status before making landfall along the coastal bend of western Florida on Monday.
As hurricanes go, this is not the most threatening storm the Sunshine State has seen in recent years. Yes, no one likes a hurricane, or the storm surge it brings. But Debby is likely to strike a relatively unpopulated area of Florida, venting much of its fury on preserves and wildlife areas. This won’t be pleasant by any means, but as hurricanes go this one should be fairly manageable from a wind and surge standpoint.
Major flood storm expected
But there is a far larger threat from Debby that will unfold well into next week over the southeastern United States—a major flood storm. Historic flooding is likely in areas of Florida, Georgia, and South Carolina.
Debby is motoring along to the north-northwest at a fairly good clip as of Sunday morning, at 13 mph. This is a fairly common path for hurricanes as they skirt around the edge of high-pressure systems. Then, when they gain a sufficient amount of latitude—as Debby is now doing—they turn poleward and eventually move toward the northeast.
Debby is expected to meander next week.
National Hurricane Center
And this is just what Debby is likely to do through about Monday. However, after this time it appears that high pressure building over the central Atlantic Ocean will strengthen enough to block an escape path for Debby to the northeast. Should this occur, it will bottle up the storm in the vicinity of the Georgia and Carolina coasts for two or three days.
There remains a lot of uncertainty about just where Debby will go after striking Florida. Most likely it crosses Georgia on Tuesday and, then its center may reemerge into the Atlantic Ocean. Regardless, its center will likely be near, or just offshore. From there it will be able to tap into very warm seas, in the vicinity of 83 to 85 degrees Fahrenheit.
In such a pattern, with a nearly stationary storm, rainfall bands can be continually replenished by moisture drawn in from the ocean. This produces intense tropical rainfall and “training” in which a band of rainfall more or less comes to rest over a given area, fed by offshore moisture.
Because we are still a few days from this pattern setting up, and due to the uncertainty in Debby’s path, we cannot say precisely where the heaviest rains will occur. However the Weather Prediction Center, the arm of the National Weather Service tasked with predicting rainfall amounts, is forecasting some pretty staggering totals for the period of now through Friday.
Enlarge/ Rainfall accumulation forecast for next week from NOAA.
WeatherBell
From Savannah, Georgia, north through Hilton Head Island and Charleston, South Carolina, the Weather Prediction Center is calling for accumulations of 20 to 25 inches, with higher totals possible in some areas. Moreover, it is possible that these high rainfall totals extend dozens of miles inland.
The African wave train gets rolling
Parts of Florida and North Carolina may also see extremely high rainfall totals over the next several days, due to the uncertainty in Debby’s motion.
And that is not all. As we get deeper into August, tropical waves are starting to fire off of the west coast of Africa. One of these is now approaching the Windward Islands, and should move into the Caribbean Sea next week. There, it has a chance of developing into a tropical storm, or more. This is likely the beginning of a period of frenetic activity characteristic of August, September, and the first half of October in the Atlantic tropics.
All of this is in line with expectations from forecasters for an exceptionally busy Atlantic hurricane season. This is due both to an anomalously warm Atlantic Ocean—seas fueled by climate change are at all-time highs in the modern era—and the imminent development of La Niña in the Pacific Ocean, which creates conditions favorable for the development of hurricanes in the Atlantic basin, which includes the Caribbean Sea and Gulf of Mexico.
This article was produced for ProPublica’s Local Reporting Network in partnership with The Seattle Times. Sign up for Dispatches to get stories like this one as soon as they are published.
When lawmakers in Washington set out to expand a lucrative tax break for the state’s data center industry in 2022, they included what some considered an essential provision: a study of the energy-hungry industry’s impact on the state’s electrical grid.
Gov. Jay Inslee vetoed that provision but let the tax break expansion go forward. As The Seattle Times and ProPublica recently reported, the industry has continued to grow and now threatens Washington’s effort to eliminate carbon emissions from electricity generation.
Washington’s experience with addressing the power demand of data centers parallels the struggles playing out in other states around the country where the industry has rapidly grown and tax breaks are a factor.
Virginia, home to the nation’s largest data center market, once debated running data centers on carbon-emitting diesel generators during power shortages to keep the lights on in the area. (That plan faced significant public pushback from environmental groups, and an area utility is exploring other options.)
Dominion Energy, the utility that serves most of Virginia’s data centers, has said that it intends to meet state requirements to decarbonize the grid by 2045, but that the task would be more challenging with rising demands driven largely by data centers, Inside Climate News reported. The utility also has indicated that new natural gas plants will be needed.
Some Virginia lawmakers and the state’s Republican governor have proposed reversing or dramatically altering the clean energy goals.
A northern Virginia lawmaker instead proposed attaching strings to the state’s data center tax break. This year, he introduced legislation saying data centers would only qualify if they maximized energy efficiency and found renewable resources. The bill died in Virginia’s General Assembly. But the state authorized a study of the industry and how tax breaks impact the grid.
“If we’re going to have data centers, which we all know to be huge consumers of electricity, let’s require them to be as efficient as possible,” said state Delegate Richard “Rip” Sullivan Jr., the Democrat who sponsored the original bill. “Let’s require them to use as little energy as possible to do their job.”
Inslee’s 2022 veto of a study similar to Virginia’s cited the fact that Northwest power planners already include data centers in their estimates of regional demand. But supporters of the legislation said their goal was to obtain more precise answers about Washington-specific electricity needs.
Georgia lawmakers this year passed a bill to halt the state’s data center tax break until data center power use could be analyzed. In the meantime, according to media reports, the state’s largest utility said it would use fossil fuels to make up an energy shortfall caused in part by data centers. Georgia Gov. Brian Kemp then vetoed the tax break pause in May.
Lawmakers in Connecticut and South Carolina have also debated policies to tackle data center power usage in the past year.
“Maybe we want to entice more of them to come. I just want to make sure that we understand the pros and the cons of that before we do it,” South Carolina’s Senate Majority Leader Shane Massey said in May, according to the South Carolina Daily Gazette.
Countries such as Ireland, Singapore, and the Netherlands have at times forced data centers to halt construction to limit strains on the power grid, according to a report by the nonprofit Tony Blair Institute for Global Change. The report’s recommendations for addressing data center power usage include encouraging the private sector to invest directly in renewables.
Sajjad Moazeni, a University of Washington professor who studies artificial intelligence and data center power consumption, said states should consider electricity impacts when formulating data center legislation. Moazeni’s recent research found that in just one day, ChatGPT, a popular artificial intelligence tool, used roughly as much power as 33,000 U.S. households use in a year.
“A policy can help both push companies to make these data centers more efficient and preserve a cleaner, better environment for us,” Moazeni said. “Policymakers need to consider a larger set of metrics on power usage and efficiency.”
Eli Sanders contributed research while a student with the Technology, Law and Public Policy Clinic at the University of Washington School of Law.
This article originally appeared on Inside Climate News, a nonprofit, independent news organization that covers climate, energy, and the environment. It is republished with permission. Sign up for its newsletter here.
Among the many obstacles to enacting federal limits on climate pollution, none has been more daunting than the Supreme Court. That is where the Obama administration’s efforts to regulate power plant emissions met their demise and where the Biden administration’s attempts will no doubt land.
A forthcoming study seeks to inform how courts consider challenges to these regulations by establishing once and for all that the lawmakers who shaped the Clean Air Act in 1970 knew scientists considered carbon dioxide an air pollutant, and that these elected officials were intent on limiting its emissions.
The research, expected to be published next week in the journal Ecology Law Quarterly, delves deep into congressional archives to uncover what it calls a “wide-ranging and largely forgotten conversation between leading scientists, high-level administrators at federal agencies, members of Congress” and senior staff under Presidents Lyndon Johnson and Richard Nixon. That conversation detailed what had become the widely accepted science showing that carbon dioxide pollution from fossil fuels was accumulating in the atmosphere and would eventually warm the global climate.
The findings could have important implications in light of a legal doctrine the Supreme Court established when it struck down the Obama administration’s power plant rules, said Naomi Oreskes, a history of science professor at Harvard University and the study’s lead author. That so-called “major questions” doctrine asserted that when courts hear challenges to regulations with broad economic and political implications, they ought to consider lawmakers’ original intent and the broader context in which legislation was passed.
“The Supreme Court has implied that there’s no way that the Clean Air Act could really have been intended to apply to carbon dioxide because Congress just didn’t really know about this issue at that time,” Oreskes said. “We think that our evidence shows that that is false.”
The work began in 2013 after Oreskes arrived at Harvard, she said, when a call from a colleague prompted the question of what Congress knew about climate science in the 1960s as it was developing Clean Air Act legislation. She had already co-authored the book Merchants of Doubt, about the efforts of industry-funded scientists to cast doubt about the risks of tobacco and global warming, and was familiar with the work of scientists studying climate change in the 1950s. “What I didn’t know,” she said, “was how much they had communicated that, particularly to Congress.”
Oreskes hired a researcher to start looking, and what they both found surprised her. The evidence they uncovered includes articles cataloged by the staff of the act’s chief architect, proceedings of scientific conferences attended by members of Congress, and correspondence with constituents and scientific advisers to Johnson and Nixon. The material included documents pertaining not only to environmental champions but also to other prominent members of Congress.
“These were people really at the center of power,” Oreskes said.
When Sen. Edmund Muskie, a Maine Democrat, introduced the Clean Air Act of 1970, he warned his colleagues that unchecked air pollution would continue to “threaten irreversible atmospheric and climatic changes.” The new research shows that his staff had collected reports establishing the science behind his statement. He and other senators had attended a 1966 conference featuring discussion of carbon dioxide as a pollutant. At that conference, Wisconsin Sen. Gaylord Nelson warned about carbon dioxide pollution from fossil fuel combustion, which he said “is believed to have drastic effects on climate.”
The paper also cites a 1969 letter to Sen. Henry “Scoop” Jackson of Washington from a constituent who had watched the poet Allen Ginsberg warning of melting polar ice caps and widespread global flooding on the Merv Griffin Show. The constituent was skeptical of the message, called Ginsberg “one of America’s premier kooks” and sought a correction of the record from the senator: “After all, quite a few million people watch this show, people of widely varying degrees of intelligence, and the possibility of this sort of charge—even from an Allen Ginsberg—being accepted even in part, is dangerous.”
Buying counterfeit weight loss drugs from illegal online pharmacies that don’t require prescriptions is, in fact, a very bad idea, according to a study published Friday in JAMA Network Open.
The counterfeit drugs are sold as equivalents to the blockbuster semaglutide drugs, Ozempic and Wegovy, which are prescription only. When researchers got their hands on three illegal versions, they found that the counterfeit drugs had low-purity semaglutide, had dosages that exceeded the labeled amount, and one had signs of bacterial contamination.
The three substandard drugs tested came from three different illegal online pharmacies, which sold them as generic semaglutide drugs for weight loss, appetite suppression, diabetes, and cardiovascular health. However, the researchers, led by scientists at the University of California, San Diego, and the University of Pécs in Hungary, had initially tried purchasing counterfeit drugs from six such sellers.
Three of the illegal pharmacies, which specifically sold Ozempic knockoffs, never delivered the drugs after researchers paid for them. Instead, the researchers were hit with “nondelivery” scams, in which the sellers requested additional, hefty payments, supposedly needed to get through customs. These extra fees ranged from $650 to $1,200—much more than what the researchers paid for small dosages of the counterfeit drugs, which ranged from $113 to $360 across the six sellers.
Rogue pharmacies
The Ozempic scams were run out of the rogue online pharmacies: weightcrunchshop.com, puremedsonline.com, and genius-pharmacy.com. The three pharmacies that delivered dubious drugs included semaspace.com, uschemlabs.com, and biotechpeptides.com.
Two of the sellers—semaspace.com and uschemlabs.com—have already received warning letters from the Food and Drug Administration for selling unapproved, misbranded drugs. At the time of publication, the Semaspace website was no longer reachable. The US Chem Labs site was still available, but their semaglutide vials were all listed as out of stock.
The study’s findings, while unsurprising, highlight the risk people may take in efforts to get hold of the popular drugs. Steep prices, lack of insurance coverage, and drug shortages have kept the drugs out of reach for many who could benefit from them. Compounding pharmacies have stepped in to make copycat versions. While these are legal and can come from legitimate pharmacies—ones that are properly registered and require prescriptions—they also carry risks. Compounded drugs are not approved by the FDA and may pose safety and efficacy risks. Last week, the FDA warned of increasing reports of people overdosing on semaglutide products made in compounding pharmacies, leading some patients to be hospitalized.
Welcome to Edition 7.05 of the Rocket Report! The Federal Aviation Administration grounded SpaceX’s Falcon 9 rocket for 15 days after a rare failure of its upper stage earlier this month. The FAA gave the green light for Falcon 9 to return to flight July 25, and within a couple of days, SpaceX successfully launched three missions from three launch pads. There’s a lot on Falcon 9’s to-do list, so we expect SpaceX to quickly return to form with several flights per week.
As always, we welcome reader submissions. If you don’t want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets as well as a quick look ahead at the next three launches on the calendar.
Big delay for a reusable rocket testbed. The French space agency, CNES, has revealed that the inaugural test flight of its Callisto reusable rocket demonstrator will not take place until late 2025 or early 2026, European Spaceflight reports. CNES unveiled an updated website for the Callisto rocket program earlier this month, showing the test rocket has been delayed from a debut launch later this year to until late 2025 or early 2026. The Callisto rocket is designed to test techniques and technologies required for reusable rockets, such as vertical takeoff and vertical landing, with suborbital flights from the Guiana Space Center in South America.
Cooperative action … Callisto, which stands for Cooperative Action Leading to Launcher Innovation in Stage Toss-back Operations, is a joint project between CNES, German space agency DLR, and JAXA, the Japanese space agency. It will stand 14 meters (46 feet) tall and weigh about 4 metric tons (8,800 pounds), with an engine supplied by Japan. Callisto is one of several test projects in Europe aiming to pave the way for a future reusable rocket. (submitted by EllPeaTea and Ken the Bin)
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Small step for Themis. Another European project established to demonstrate reusable rocket tech is making slow progress toward a first flight. The Themis project, funded by the European Space Agency, is similar in purpose to the Callisto testbed discussed above. This week, the German aerospace manufacturing company MT Aerospace announced it has begun testing a demonstrator of the landing legs that will be used aboard the Themis reusable booster, European Spaceflight reports. The landing legs for Themis are made of carbon fiber-reinforced plastic composites, and the initial test demonstrated good deployment and showed it would withstand the impact energy of landing.
Also delayed … Like Callisto, Themis is facing delays in getting to the launch pad. ArianeGroup, the ESA-selected Themis prime contractor, had been expected to conduct an initial hop test of the demonstrator before the end of 2024. However, officials have announced the initial hop tests won’t happen until sometime next year. The Themis booster is intended to eventually become the first stage booster for an orbital-class partially reusable rocket being developed by MaiaSpace, a subsidiary of ArianeGroup. (submitted by Ken the Bin)
Falcon 9 is flying again. A SpaceX Falcon 9 rocket returned to flight on July 27, barely two weeks after an upper stage failure ended a streak of more than 300 consecutive successful launches, Ars reports. By some measures this was an extremely routine mission—it was, after all, SpaceX’s 73rd launch of this calendar year. And like many other Falcon 9 launches this year, the “Starlink 10-9” mission carried 23 of the broadband Internet satellites into orbit. However, after a rare failure earlier this month, this particular Falcon 9 rocket was making a return-to-flight for the company and attempting to get the world’s most active booster back into service.
Best part is no part … The Falcon 9 successfully deployed its payload of Starlink satellites about an hour after lifting off from NASA’s Kennedy Space Center in Florida. Later in the weekend, SpaceX launched two more Starlink missions on Falcon 9 rockets from Florida and California, notching three flights in less than 28 hours. The launch failure on the previous Falcon 9 launch was caused by a liquid oxygen leak on the upper stage, which led to a “hard start” on the upper stage engine when it attempted to reignite in flight. Engineers and technicians were quickly able to pinpoint the cause of the leak, a crack in a “sense line” for a pressure sensor attached to the vehicle’s liquid oxygen system.
Atlas V’s NSSL era is over. United Launch Alliance delivered a classified US military payload to orbit Tuesday for the last time with an Atlas V rocket, ending the Pentagon’s use of Russian rocket engines as national security missions transition to all-American launchers, Ars reports. This was the 101st launch of an Atlas V rocket since its debut in 2002, and the 58th and final Atlas V mission with a US national security payload since 2007. The Atlas V is powered by an RD-180 main engine made in Russia, and with a little prodding from SpaceX (via a lawsuit) and Congress, the Pentagon started making moves to end its reliance on the RD-180 a decade ago.
Other options available … The RD-180 never failed on a National Security Space Launch (NSSL) mission using the Atlas V rocket, but its use became politically untenable after Russia’s annexation of Crimea in 2014, which predated Russia’s full-scale invasion of Ukraine eight years later. SpaceX began launching US military missions in 2018, and ULA debuted its new Vulcan rocket in January. Assuming a successful second test flight of Vulcan in September, ULA’s next-generation rocket has a good shot at launching its first national security mission by the end of the year. The Space Force’s policy is to maintain at least two independent launch vehicles capable of flying military payloads into orbit. Vulcan and SpaceX’s Falcon rocket family fulfill that requirement, so the military no longer needs the Atlas V. However, 15 more Atlas V rockets remain in ULA’s inventory for future commercial flights.
Crackdown at the Cape. While this week’s landmark launch of the Atlas V rocket is worthy of celebration, there’s a new ULA policy that deserves ridicule, Ars reports. Many of the spectacular photos of rocket launches shared on social media come from independent photographers, who often make little to no money working for an established media organization. Instead, they rely on sales of prints to recoup at least some of their expenses for gas, food, and camera equipment needed to capture these images, which often serve as free publicity for launch providers like ULA. Last month, ULA announced it will no longer permit these photographers to set up remote cameras at their launch pads if they sell their images independently. This new policy was in place for the Atlas V launch from Cape Canaveral, Florida, on Tuesday morning.
But why? … “ULA will periodically confirm editorial publication for media participating in remote camera placement,” ULA stated in an email distributed to photographers last month. “If publication does not occur, or photos are sold outside of editorial purposes, privileges to place remote cameras may be revoked.” To the photographers who spend many hours preparing their equipment, waiting to set up and remove cameras, and persevering through scrubs and more, it seemed like a harsh judgment. And nobody knows why it happened. ULA has offered no public comment about the new policy, and the company did not respond to questions from Ars about the agreement.
Astroscale achieves a first in orbit. There are more than 2,000 mostly intact dead rockets circling the Earth, but until this year, no one ever launched a satellite to go see what one looked like after many years of tumbling around the planet, Ars reports. A Japanese company named Astroscale launched a small satellite in February to chase down the derelict upper stage from a Japanese H-IIA rocket. Astroscale’s ADRAS-J spacecraft arrived near the H-IIA upper stage in April, and the company announced this week that its satellite has now completed two 360-degree fly-arounds of the rocket. This is the first time a satellite has maneuvered around an actual piece of space junk, and it offers an unprecedented snapshot of how an abandoned rocket holds up to 15 years in the harsh environment of space.
Prepping for the future … Astroscale’s ADRAS-J mission is partially funded by the Japan Aerospace Exploration Agency (JAXA). Astroscale and JAXA also have a contract for a follow-up mission named ADRAS-J2, which will attempt to link up with the same H-IIA rocket and steer it on a trajectory to burn up in Earth’s atmosphere. This would be the first demonstration of active debris removal, a concept pursued by Astroscale and other companies to help clear space junk out of low-Earth orbit.
An update on Ariane 6. The European Space Agency has released its first update on the results from the first flight of the Ariane 6 rocket since its launch July 9. Europe’s new flagship rocket had a mostly successful inaugural test flight. Its first stage, solid rocket boosters, and upper stage performed as expected for the first phase of the flight, delivering eight small satellites into an on-target orbit. The launch pad at the Guiana Space Center in South America also held up to the violent environment of launch, ESA said.
Still investigating … However, the final phase of the mission didn’t go according to plan. The upper stage’s Vinci engine was supposed to reignite for a third time on the test flight to deorbit the rocket, which would have released two small reentry capsules on technology demonstration missions to test heat shield technologies. This didn’t happen. An Auxiliary Propulsion Unit, which is a small engine to provide additional bursts of thrust and pressurize the upper stage’s propellant tanks, shut down shortly after startup ahead of the third burn of the primary Vinci engine. “This meant the Vinci engine’s third boost could not take place,” ESA said. “Analysis of the APU’s behavior is ongoing and further information will be made available as soon as possible, while the next task force update is expected in September.” (submitted by Ken the Bin)
Room to grow at Starbase. SpaceX has since launched Starship four times from its launch site in South Texas, known as Starbase, and is planning a fifth launch within the next two months, Ars reports. However, as it continues to test Starship and make plans for regular flights, SpaceX will need a higher flight rate. This is especially true as the company is unlikely to activate additional launch pads for Starship in Florida until at least 2026. To that end, SpaceX has asked the FAA for permission for up to 25 flights a year from South Texas, as well as the capability to land both the Starship upper stage and Super Heavy booster stage back at the launch site.
The answer is probably yes … On Monday, the FAA signaled that it is inclined to grant this request. The agency released a draft assessment indicating that its extensive 2022 analysis of Starship launch activities on the environment, wildlife, local communities, and more was sufficient to account for SpaceX’s proposal for more launches. There is more to do for this conclusion to become official, including public meetings and a public comment period this month.
SpaceX eyes Australia. SpaceX is in talks with US and Australian officials to land and recover one of its Starship rockets off Australia’s coast, a possible first step toward a bigger presence for Elon Musk’s company in the region as the two countries bolster security ties, Reuters reports. At the end of SpaceX’s fourth Starship test flight in June, the rocket made a controlled splashdown in the Indian Ocean hundreds of miles off the northwest coast of Australia. The discussions now underway are focused on the possibility of towing a future Starship vehicle from its splashdown point in the ocean to a port in Australia, where SpaceX engineers could inspect it and learn more about how it performed.
Eventually, it’ll come back to land … On the next Starship flight, currently planned for no earlier than late August, SpaceX plans to attempt to recover Starship’s giant Super Heavy booster using catch arms on the launch pad tower in Texas. On Sunday, Elon Musk told SpaceX and Tesla enthusiasts at an event called the “X Takeover” that it will take a few more flights for engineers to get comfortable returning the Starship itself to a landing onshore. “We want to be really confident that the ship heat shield is super robust and lands at the exact right location,” he said. “So before we try to bring the ship back to the launch site, we probably want to have at least three successful landings of the ship [at sea].” (submitted by Ken the Bin)
Next three launches
August 2: Electron | “Owl for One, One for Owl” | Mahia Peninsula, New Zealand | 16: 39 UTC
August 3: Falcon 9 | NG-21 | Cape Canaveral Space Force Station, Florida | 15: 28 UTC
August 4: Falcon 9 | Starlink 11-1 | Vandenberg Space Force Base, California | 07: 00 UTC
Enlarge/ CT scans and other techniques allowed scientists to “virtually dissect” this 3,500-year-old “Screaming Woman” mummy.
There have been a handful of ancient Egyptian mummies discovered with their mouths wide open, as if mid-scream. This has puzzled archaeologists because Egyptian mummification typically involved bandaging the mandible to the skull to keep the mouth closed. Scientists have “virtually dissected” one such “Screaming Woman” mummy and concluded that the wide-open mouth is not the result of poor mummification, according to a new paper published in the journal Frontiers in Medicine. There was no clear cause of death, but the authors suggest the mummy’s expression could indicate she died in excruciating pain.
“The Screaming Woman is a true ‘time capsule’ of the way that she died and was mummified,” said co-author Sahar Saleem, a professor of radiology at Cairo University in Egypt. “Here we show that she was embalmed with costly, imported embalming material. This, and the mummy’s well-preserved appearance, contradicts the traditional belief that a failure to remove her inner organs implied poor mummification.”
Saleem has long been involved in paleoradiology and archaeometry of “screaming” Egyptian mummies. For instance, she co-authored a 2020 paper applying similar techniques to the study of another “Screaming Woman” mummy, dubbed Unknown Woman A by the then-head of the Egyptian Antiquities Service, Gaston Maspero, and one of two such mummies discovered in the Royal Cache at Deir el Bahari near Luxor in 1881. This was where 21st and 22nd Dynasty priests would hide the remains of royal members from earlier dynasties to thwart grave robbers.
The male mummy, which also had a screaming expression, was identified in a 2012 study (also co-authored by Saleem) as Pentawer, son of 20th Dynasty pharaoh Ramses III (1186–1155 BCE), thanks to CT scans and DNA testing. Prince Pentawer was involved in the “harem conspiracy,” resulting in the assassination of his father, although the attempted coup failed in its objective of placing Pentawer on the throne. (The 2012 CT scans of Ramses III’s mummy revealed that the pharaoh’s throat had been cut to the bone, severing the trachea, esophagus, and blood vessels.)
The prince was forced to commit suicide by hanging as punishment. His body was not properly mummified; his organs were not removed (evisceration), and no embalming fluids were placed inside his body cavity. Instead, he was ignominiously wrapped in a goat’s skin (deemed ritually “impure”) and placed in an unmarked coffin.
“Screaming Mummy” of a man identified as Prince Pentawer, son of Ramesses III.
Public domain
Picture of the head and upper torso of the “Screaming Woman” mummy known as Unknown Woman A, possibly Meritamun, daughter of 17th Dynasty Pharaoh Seqenenre Taa.
Zahi Hawass and Sahar N. Saleem
Maspero noted that Unknown Woman A’s wraps included inscriptions that translated into “Royal daughter, royal sister Meritamun,” but there were several princesses of that name, so this “screaming woman” mummy was officially declared unknown. The two most likely candidates were the daughter of late 17th Dynasty pharaoh Seqenenre Taa II (1558–1553 BCE) or the daughter of Nefertiti and Ramses II (1279–1213 BCE), aka Ramses the Great. Maspero thought that the unusual wide-open mouth may have been the result of improper mummification (or no mummification, like Pentawer.)
Saleem and her 2020 co-author, archaeologist Zahi Hawass, took CT scans of the mummy to learn more about who she might have been and how she died. They identified her as an older woman who likely died in her 50s and was just under 5 feet tall. The scans revealed high calcification in many of her arteries (severe atherosclerosis), indicating serious heart disease. This likely led to her sudden death from a heart attack or stroke; the authors suggest the woman was not discovered right away, so her muscles and joints stiffened—hence the unusual body position (bent legs) and the wide open mouth. In addition, or alternatively, some kind of cadaveric spasm at the moment of death may have occurred.
Unlike the remains of the patricidal Pentawer, this woman had been eviscerated; her body cavity was filled with resin and scents, and she had been wrapped in pure linen. Her brain, however, was still in the skull, desiccated and shifted to the right. Based on that detail—brain removal was more common during the 19th Dynasty, and leaving it intact was more common during the 17th Dynasty—Saleem et al. concluded that the mummy is most likely that of Meritanum, daughter of Seqenenre Taa.
A small study in Texas suggests that human bird flu cases are being missed on dairy farms where the H5N1 virus has taken off in cows, sparking an unprecedented nationwide outbreak.
The finding adds some data to what many experts have suspected amid the outbreak. But the authors of the study, led by researchers at the University of Texas Medical Branch in Galveston, went further, stating bluntly why the US is failing to fully surveil, let alone contain, a virus with pandemic potential.
“Due to fears that research might damage dairy businesses, studies like this one have been few,” the authors write in the topline summary of their study, which was posted online as a pre-print and had not been peer-reviewed.
The study authors, led by Gregory Gray, were invited to two undisclosed dairy farms in Texas that experienced H5N1 outbreaks in their herds starting in early and late March, respectively. The researchers had a previously approved research protocol to study novel respiratory viruses on dairy farms, easing the ability to quickly begin the work.
Rare study
“Farm A” had 7,200 cows and 180 workers. Illnesses began on March 6, and nearly 5 percent of the herd was estimated to be affected during the outbreak. “Farm B” had 8,200 cows and 45 workers. After illnesses began on March 20, an estimated 14 percent of the herd was affected.
The researchers first visited Farm A on April 3 and Farm B on April 4, collecting swabs and samples at each. Based on the previously approved protocol, they were limited to taking nasal swabs and blood samples from no more than 10 workers per farm. On Farm A, 10 workers provided nasal swabs and blood samples. On Farm B, only seven agreed to give nasal swabs, and four gave blood samples.
While swabs from cows, milk, a dead bird, and a sample of fecal slurry showed signs of H5N1, all of the nasal swabs from the 14 humans were negative. However, when researchers looked for H5N1-targeting antibodies in their blood—an indicator that they were previously infected—two of the 14, about 14 percent, were positive.
Both of the workers with previous infections, a man and a woman, were from Farm A. And both reported having flu-like symptoms. The man worked inside cattle corrals, close to the animals, and he reported having a cough at the time the samples were taken. The woman, meanwhile, worked in the cafeteria on the farm and reported recently recovering from an illness that included fever, cough, and sore throat. She noted that other people on the farm had similar respiratory illnesses around when she did.
The finding suggests human cases of H5N1 are going undetected. Moreover, managing to find evidence of two undetected infections in a sample of just 14 workers suggests it may not be hard to find more. The Centers for Disease Control and Prevention estimates that around 200,000 people work with livestock in the US.
Known infections in humans have all been mild so far. But experts are anxious that with each new infection, the wily H5N1 virus is getting new opportunities to adapt further to humans. If the virus evolves to cause more severe disease and spread from human to human, it could spark another pandemic.
Federal officials are also worried about this potential threat. In a press briefing Tuesday, Nirav Shah, the CDC’s principal deputy director, announced a $5 million effort to vaccinate farm workers—but against seasonal flu.
Shah explained that the CDC is concerned that if farm workers are infected with H5N1 and the seasonal flu at the same time, the viruses could exchange genetic segments—a process called reassortment. This could give rise to the pandemic threat experts are worried about. By vaccinating the workers against the seasonal flu, it could potentially prevent the viruses from comingling in one person, Shah suggested.
The US does have a bird flu-specific vaccine available. But in the briefing, Shah said that the use of that vaccine in farm workers is not planned for now, though there’s still active discussion on the possibility. The lack of severe disease and no documented human-to-human transmission from H5N1 infections both argue against deploying a new vaccine, Shah said. “There has to be a strong and compelling case,” he added. Shah also suggested that the agency expects vaccine uptake to be low among farm workers.
Enlarge/ Boeing’s Starliner spacecraft is seen docked at the International Space Station on June 13.
It has now been eight weeks since Boeing’s Starliner spacecraft launched into orbit on an Atlas V rocket, bound for the International Space Station. At the time NASA officials said the two crew members, Butch Wilmore and Suni Williams, could return to Earth as soon as June 14, just eight days later.
Yes, there had been some problems on Starliner’s ride to the space station that involved helium leaks and failing thrusters. But officials said they were relatively minor and sought to downplay them. “Those are pretty small, really, issues to deal with,” Mark Nappi, vice president and manager of Boeing’s Commercial Crew Program, said during a post-docking news conference. “We’ll figure them out for the next mission. I don’t see these as significant at all.”
But days turned to weeks, and weeks turned to months as NASA and Boeing continued to study the two technical problems. Of these issues, the more pressing concern was the failure of multiple reaction control system thrusters that are essential to steering Starliner during its departure from the space station and setting up a critical engine burn to enter Earth’s atmosphere.
In the last few weeks, ground teams from NASA and Boeing completed testing of a thruster on a test stand at White Sands, New Mexico. Then, last weekend, Boeing and NASA fired the spacecraft’s thrusters in orbit to check their performance while docked at the space station. NASA has said preliminary results from these tests were helpful.
Dragon becomes a real option
One week ago, the last time NASA officials spoke to the media, the agency’s program manager for commercial crew, Steve Stich, would not be drawn into discussing what would happen should NASA conclude that Starliner’s thrusters were not reliable enough for the return journey to Earth.
“Our prime option is to complete the mission,” Stich said one week ago. “There are a lot of good reasons to complete this mission and bring Butch and Suni home on Starliner. Starliner was designed, as a spacecraft, to have the crew in the cockpit.”
For a long time, it seemed almost certain that the astronauts would return to Earth inside Starliner. However, there has been a lot of recent activity at NASA, Boeing, and SpaceX that suggests that Wilmore and Williams could come home aboard a Crew Dragon spacecraft rather than Starliner. Due to the critical importance of this mission, Ars is sharing what we know as of Thursday afternoon.
One informed source said it was greater than a 50-50 chance that the crew would come back on Dragon. Another source said it was significantly more likely than not they would. To be clear, NASA has not made a final decision. This probably will not happen until at least next week. It is likely that Jim Free, NASA’s associate administrator, will make the call.
Asked if it was now more likely than not that Starliner’s crew would return on Dragon, NASA spokesperson Josh Finch told Ars on Thursday evening, ” NASA is evaluating all options for the return of agency astronauts Butch Wilmore and Suni Williams from the International Space Station as safely as possible. No decisions have been made and the agency will continue to provide updates on its planning.”
Enlarge/ Astroscale’s ADRAS-J spacecraft captured these views of the H-IIA rocket upper stage on July 15.
There are more than 2,000 mostly intact dead rockets circling the Earth, but until this year, no one ever launched a satellite to go see what one looked like after many years of tumbling around the planet.
In February, a Japanese company named Astroscale sent a small satellite into low-Earth orbit on top of a Rocket Lab launcher. A couple of months later, Astroscale’s ADRAS-J (Active Debris Removal by Astroscale-Japan) spacecraft completed its pursuit of a Japanese rocket stuck in orbit for more than 15 years.
ADRAS-J photographed the upper stage of an H-IIA rocket from a range of several hundred meters and then backed away. This was the first publicly released image of space debris captured from another spacecraft using rendezvous and proximity operations.
Since then, Astroscale has pulled off more complex maneuvers around the H-IIA upper stage, which hasn’t been controlled since it deployed a Japanese climate research satellite in January 2009. Astroscale attempted to complete a 360-degree fly-around of the H-IIA rocket last month, but the spacecraft triggered an autonomous abort one-third through the maneuver after detecting an attitude anomaly.
ADRAS-J flew away from the H-IIA rocket for several weeks. After engineers determined the cause of the glitch that triggered the abort, ADRAS-J fired thrusters to approach the upper stage again this month. The ADRAS-J spacecraft is about the size of a kitchen oven, while the H-IIA rocket it’s visiting is nearly the size of a city bus.
Astroscale’s satellite completed two fly-around maneuvers of the H-IIA upper stage on July 15 and 16, examining all sides of the rocket as it soared more than 350 miles (560 kilometers) above the planet. Engineers also wanted to measure the upper stage’s spin rate and spin axis. At first glance, the upper stage appears remarkably similar to the way it looked when it launched. Despite exposure to the harsh conditions of space, the rocket’s outer skin remains covered in orange foam insulation, and the engine nozzle still shines as if it were new.
ADRAS-J autonomously maneuvered around the rocket at a distance of about 50 meters (164 feet), using navigation data from a light detection and ranging sensor and Astroscale’s custom-developed guidance algorithms to control its position as the vehicles moved around Earth at nearly 4.7 miles per second (7.6 kilometers per second). This is the crux of the challenge for ADRAS-J because the rocket is unpowered and unable to hold position. The upper stage also lacks laser reflectors and targets that would aid an approaching spacecraft.
This is a first
These types of complex maneuvers, known as rendezvous and proximity operations (RPO), are common for crew and cargo spacecraft around the International Space Station. Other commercial satellites have demonstrated formation-flying and even docking with a spacecraft that wasn’t designed to connect with another vehicle in orbit.
Military satellites from the United States, Russia, and China also have RPO capabilities, but as far as we know, these spacecraft have only maneuvered in ultra-close range around so-called “cooperative” objects designed to receive them. In 2003, the Air Force Research Laboratory launched a small satellite named XSS-10 to inspect the upper stage of a Delta II rocket in orbit, but it had a head start. XSS-10 maneuvered around the same rocket that deployed it, rather than pursuing a separate target.
Enlarge/ Some solar panels, along with a diagram of a perovskite’s crystal structure.
As the price of silicon panels has continued to come down, we’ve reached the point where they’re a small and shrinking cost of building a solar farm. That means that it might be worth spending more to get a panel that converts more of the incoming sunlight to electricity, since it allows you to get more out of the price paid to get each panel installed. But silicon panels are already pushing up against physical limits on efficiency. Which means our best chance for a major boost in panel efficiency may be to combine silicon with an additional photovoltaic material.
Right now, most of the focus is on pairing silicon with a class of materials called perovskites. Perovskite crystals can be layered on top of silicon, creating a panel with two materials that absorb different areas of the spectrum—plus, perovskites can be made from relatively cheap raw materials. Unfortunately, it has been difficult to make perovskites that are both high-efficiency and last for the decades that the silicon portion will.
Lots of labs are attempting to change that, though. And two of them reported some progress this week, including a perovskite/silicon system that achieved 34 percent efficiency.
Boosting perovskite stability
Perovskites are an entire class of materials that all form the same crystal structure. So, there is plenty of flexibility when it comes to the raw materials being used. Perovskite-based photovoltaics are typically formed by what’s called solution processing, in which all the raw materials are dissolved in a liquid that’s then layered on top of the panel-to-be, allowing perovskite crystals to form across its entire surface. Which is great, except that this process tends to form multiple crystals with different orientations on a single surface, decreasing performance.
Adding to the problems, perovskites are also not especially stable. They’re usually made of a combination of positively and negatively charged ions, and these have to be present in the right ratios to form a perovskite. However, some of these individual ions can diffuse over time, disrupting the crystal structure. Harvesting solar energy, which involves the material absorbing lots of energy, makes matters worse by heating the material, which increases the rate of diffusion.
Combined, these factors sap the efficiency of perovskite solar cells and mean that none lasts nearly as long as a sheet of silicon. The new works tackle these issues from two very different directions.
The first of the new papers tackles stability by using the flexibility of perovskites to incorporate various ions. The researchers started by using a technique called density functional theory to model how different molecules would behave when placed into a spot normally occupied by a positively charged ion. And the modeling got them excited about a molecule called tetrahydrotriazinium, which has a six-atom ring composed of alternating carbon and nitrogen atoms. The regular placement of nitrogens around the ring allows it to form regular interactions with neighboring atoms in the crystal structure.
Tetrahydrotriazinium has a neutral charge when only two of the nitrogens have hydrogens attached to them. But it typically grabs a charged hydrogen (effectively, a proton) out of solution, giving it a net positive charge. This leaves each of its three nitrogens associated with a hydrogen and allows the positive charge to be distributed among them. That makes this interaction incredibly strong, meaning that the hydrogens are extremely unlikely to drift off, which also stabilizes the crystal structure.
So, this should make perovskites much, much more stable. The only problem? Tetrahydrotriazinium tends to react with lots of other chemicals, so it’s difficult to provide as a raw material for the perovskite-forming solution.
Enlarge/ Muscle atrophy is a known hazard of spending time on the International Space Station.
Muscle-on-chip systems are three-dimensional human muscle cell bundles cultured on collagen scaffolds. A Stanford University research team sent some of these systems to the International Space Station to study the muscle atrophy commonly observed in astronauts.
It turns out that space triggers processes in human muscles that eerily resemble something we know very well: getting old. “We learned that microgravity mimics some of the qualities of accelerated aging,” said Ngan F. Huang, an associate professor at Stanford who led the study.
Space-borne bioconstructs
“This work originates from our lab’s expertise in regenerative medicine and tissue engineering. We received funding to do a tissue engineering experiment on the ISS, which really helped us embark on this journey, and became curious how microgravity affects human health,” said Huang. So her team got busy designing the research equipment needed to work onboard the space station. The first step was building the muscle-on-chip systems.
“A lot of what was known about how space affects muscles was gathered through studying the astronauts or studying animals like mice put in microgravity for research purposes,” Huang said. “In some cases, there were also in vitro cultured cells on a Petri dish—something very basic. We wanted to have something more structurally complex.” Her team developed a muscle-on-chip platform in which human myotubes, cells that organize into long parallel bundles that eventually become muscle fibers in a living organism, were grown on collagen scaffolds. The goal was to make the samples emulate real muscles better. But that came with a challenge: keeping them alive on the ISS.
“When we grow cells on Earth, we pour the medium—basically a liquid with nutrients that allow the cells to grow—over the cells, and everything is fine,” Huang said. “But in space, in the absence of gravity, we needed a closed, leak-proof, tightly sealed chamber. The medium was sloshed around in there.”
Oxygen and carbon dioxide levels were maintained with permeable membranes. Changing the medium was a complicated procedure involving syringes and small custom-designed ports. But getting all this gadgetry up and running was worth it in the end.
Genes of atrophy
Huang’s team had two sets of muscle-on-chip systems: one on the ground and one on the ISS. The idea of the study was to compare the genes that were upregulated or downregulated in each sample set. It turned out that many genes associated with aging saw their activity increase in microgravity conditions.
This result was confirmed when the team analyzed the medium that was taken off after the cells had grown in it. “The goal was to identify proteins released by the cells that were associated with microgravity. Among those, the most notable was the GDF15, which is relevant to different diseases, particularly mitochondrial dysfunction or senescence,” said Huang.
Overall, the condition of cells on the ISS was somewhat similar to sarcopenia, an age-related muscle loss disease. “There were some similarities, but also a lot of differences. The reason we didn’t make sarcopenia the main focus of this study is that we know our muscle-on-chip system is a model. It’s mostly muscle cells on a scaffold. It doesn’t have blood vessels or nerves. Comparing that to clinical, real muscle samples is a bit tricky, as it is not comparing apples to apples,” said Huang.
Nevertheless, her team went on to use their ISS muscle-on-chip samples to conduct proof-of-concept drug screening tests. Drugs they tested included those used to treat sarcopenia, among other conditions.
Space drugs
“One of the drugs we tested was the [protein] IGF 1, which is a growth factor naturally found in the body in different tissues, especially in muscles. When there is an injury, IGF 1 activates within a body to initiate muscle regeneration. Also, IGF 1 tend to be declined in aging muscles,” said Huang. The second drug tested was 15-PGDH-i, a relatively new inhibitor of enzymes that hinder the process of muscle regeneration. Used on the muscles-on-chip on the ISS, the drugs partially reduced some of the microgravity-related effects.
“One of the limitations of this work was that on the ISS, the microgravity is also accompanied by other factors, such as ionizing radiation, and it is hard to dissociate one from the other,” said Huang. It’s still unclear if the effects observed in the ISS samples were there due to radiation, the lack of gravity, both, or some additional factor. Huang’s team plans to do similar experiments on Earth in simulated microgravity conditions. “With some of the specialized equipment we recently acquired, it is possible to look at just the effects of microgravity,” Huang said. Those experiments are aimed at testing a wider range of drugs.
“The reason we do this drug screening is to develop drugs that could either be taken preemptively or during the flight to counteract muscle atrophy. It would probably be more feasible, lighter, and cheaper than doing artificial gravity concepts,” Huang said. The most promising candidate drugs selected in these ground experiments will be tested on Huang’s muscle-on-chip systems onboard the ISS in 2025.
Enlarge/ A rendering of NASA’s proposed lunar gateway.
NASA
Do you remember the Lunar Gateway? You could be forgiven if not, as the program continues to be tossed around by NASA planners, and it is still not entirely clear what purpose the lunar space station is supposed to serve.
The Gateway—a small space station that will fly in a halo orbit around the Moon and spend most of its time far from the lunar surface—was initially supposed to launch in 2022. That obviously did not happen, and now, according to a new report from the US Government Accountability Office, the space agency does not expect the launch of the initial elements of the Gateway until at least December 2027. The baseline cost estimate is $5.3 billion.
NASA’s present plans contemplate using the Gateway as part of the Artemis IV mission, presently scheduled for September 2028. Unfortunately, the Gateway’s current launch target is already three months later than needed to support Artemis IV, the second mission to land humans on the Moon. But that’s OK. There are a lot of other moving parts for this mission, so a launch any time this decade would be a win.
The report includes a helpful cartoon to explain the complicated sequence that needs to happen for Gateway to be involved in the Artemis IV mission:
Launch of the initial segments of the Gateway, a power and propulsion module, and a habitation module, to a halo orbit around the Moon
Launch of a SpaceX Dragon XL vehicle to bring supplies to the Gateway
Launch of multiple SpaceX Starships to fuel a Lunar Starship, which will then fly to and dock with the Gateway
Launch of a NASA Space Launch System rocket carrying four astronauts inside an Orion spacecraft as well as another Gateway module
After launch, Orion separates from the rocket and docks with this module, the International Habitat
Orion tugs the International Habitat to the Gateway and docks; the crew exits onto Gateway
Two crew members board the Lunar Starship and go down to the Moon for six days
Starship flies back to the Gateway, and the four astronauts return to Earth inside Orion.
How the Artemis IV mission will (probably) take place.
US GAO
In a rather understated manner, the report notes that this plan is fairly complex and faces some serious schedule risks.
“This mission will be complex because NASA will need to coordinate across seven NASA programs, multiple contractors that support those programs, and international partners to execute the mission,” the report states. “It will also be the first launch of an upgraded version of the Space Launch System rocket.”
Developmental difficulties
The report also finds that the Gateway program is running into some pretty serious technical difficulties. One involves a defective network chip that facilitates communication throughout the lunar space station. Its failure could cause myriad problems onboard the Gateway.
“For example, these defects could lead the flight computers to unexpectedly restart,” the report states. “If the network is not functioning properly, it could result in loss of control of the Gateway. Program officials are also concerned that they might identify more defects with the communication network, based on the number found already.”
Another risk involves something called “stack controllability.” This essentially means that because SpaceX’s Lunar Starship is so much more massive than the Gateway, when it is docked to the space station, the Gateway’s power and propulsion element (PPE) will not be able to maintain a proper orientation of the entire stack.
“Program officials estimate that the mass of the lunar lander Starship is approximately 18 times greater than the value NASA used to develop the PPE’s controllability parameters,” the report states. “According to NASA’s system engineering guidance, late requirements and design changes can lead to cost growth and schedule delays.”
The report also has some sobering conclusions about the potential utility of the Lunar Gateway for Mars missions. (In the past, NASA officials have spoken about the Gateway as a staging area for spacecraft and propellant for human missions to the surface of Mars.) However, the “stack controllability” issue poses a serious constraint to hosting large Mars transit vehicles. Moreover, the planned 15-year lifetime of the Gateway may not be long enough to sustain Mars missions.
“The Gateway could have exceeded its planned 15-year on-orbit life as early as 2042 when crewed missions to Mars are potentially just beginning,” the report states.
All in all, the report seems to suggest that the Gateway is way behind schedule and is of limited use to lunar and Mars landings. The report suggests the Gateway will be complex to undertake at the very same time NASA is attempting to establish a lunar surface program. But other than that, everything is going great.
