A schematic to illustrate the approximate location from which the measurements were taken; an example right clavicle from each age group.
Credit: S.I. Shalnkland et al., PLOS ONE 2024
A schematic to illustrate the approximate location from which the measurements were taken; an example right clavicle from each age group. Credit: S.I. Shalnkland et al., PLOS ONE 2024
Most of the recovered human remains were jumbled up, but over the years, preservationists have partially reconstructed some 98 individuals, all men between 10 and 40 years of age. The new study focused on 12 clavicle (collar) bones, which links the upper limb to the torso and is one of the most commonly fractured bones. Per the authors, it’s one of the first bones to start ossifying in utero, but the last to fully fuse, usually between 22 and 25 years old.
That was a boon for determining the age of the Mary Rose crew members, but the authors thought differences in bone mineral and protein chemistry could also shed light on bone changes related not just to aging, but also to lifestyle or disease, and even whether a crewman was right- or left-handed had an impact on those changes. They specifically looked at changes in phosphate, carbonate, and amine (the foundation of collagen), all major components of bone.
The results: mineral content of the bones of all 12 men increased with age, while the protein content decreased. Those changes were more significant in right clavicles rather than left ones, an intriguing result suggesting a preference for right-handed crew members. The authors note that this might be because, at the time, being left-handed was often associated with witchcraft. Perhaps those right-handed crew members put more stress on their right side while performing their duties, and this, in turn, asymmetrically altered their clavicle chemistry.
“Having grown up fascinated by the Mary Rose, it has been amazing to have the opportunity to work with these remains,” said co-author Sheona Shankland of Lancaster University. “The preservation of the bones and the non-destructive nature of the technique allows us to learn more about the lives of these sailors, but also furthers our understanding of the human skeleton, relevant to the modern world.”
Enlarge/Cursed Gold: A Shipwreck Scandal documents the spectacular rise and fall of treasure hunter Tommy Thompson.
Recovery Limited Partnership Liquidating Trust
Many people dream of finding lost or hidden treasure, but sometimes realizing that dream turns out to be a nightmare. Such was the case for Tommy Thompson, an American treasure hunter who famously beat the odds to discover the location of the SS Central America shipwreck in 1988. It had been dubbed the “Ship of Gold” since it sank in 1857 laden with 30,000 pounds of gold bars and coins—collectively worth enough money to have some impact on the Panic of 1857 financial crisis.
Thompson and his team recovered significant amounts of gold and artifacts to great fanfare, with experts at the time suggesting the trove could be worth as much as $400 million. The euphoria proved short-lived. Thirty-nine insurance companies filed lawsuits, claiming the gold was rightfully theirs since the companies had paid damages for the lost gold back in the mid-19th century. Thompson eventually prevailed in 1996, when courts awarded him and his discovery team 92 percent of the gold they’d recovered.
But actually realizing profits from the gold proved challenging; In the end, Thompson sold the gold for just $52 million, almost all of which went to pay off the massive debt the project had accumulated over the ensuing years. So naturally, there were more lawsuits, this time from the investors who had financed Thompson’s expedition, accusing him of fraud. Thompson didn’t help his case when he went on the run in 2012 with his assistant, living off some $4 million in assets stashed in an offshore account.
Thompson was finally captured by US marshals in 2015 to face his investors in court. A jury awarded the investors substantial compensatory damages, and the court ordered Thompson to hand over 500 commemorative gold coins that had been minted out of some of the Central America gold to meet that judgment. Thompson claimed he had forgotten where he’d stashed them and was jailed for contempt of court until the coins had been recovered and handed over. He’s still in prison as of this writing, and the gold coins have yet to be found.
It’s quite a tale, so small wonder that National Geographic has made a riveting three-part documentary about Thompson’s spectacular rise and fall: Cursed Gold: A Shipwreck Scandal, based on the 1998 book by Gary Kinder entitled Ship of Gold in the Deep Blue Sea. Cursed Gold director Sam Benstead read Kinder’s book and was instantly hooked on the story. “Not only was it a hugely exciting story with many twists and turns, but it was also an emotional story, which left you pulling for Tommy and his crew,” he told Ars. “Tommy came through as an extraordinary character: eccentric, brilliant, someone willing to try things no one else had. When I discovered all the things that had happened after the book, I knew it was a story I had to tell.”
Ship of Gold
Engraving by J. Childs of the 1857 sinking of the SS Central America.
Public domain/National Maritime Museum, London
Sonar expert Mike Williamson hard at work during production of Cursed Gold.
National Geographic
John Moore is a lead designer of deep-sea robot Nemo.
National Geographic
Dramatic reconstruction of crew members looking at monitors in the ship’s control room.
National Geographic
Dramatic reconstruction of a crew member looking at computer screens in the ship’s control room.
National Geographic
Dramatic reconstruction of sonar operator John Lettow navigating Nemo from the ship’s control room.
National Geographic
Dramatic reconstruction showing Nemo descending to the seabed off the coast of North Carolina.
National Geographic
Gold bars and coins on the bottom of the sea bed off the coast of North Carolina.
Recovery Limited Partnership Liquidating Trust
Robotic machine recovers gold bars on the bottom of the seabed.
Recovery Limited Partnership Liquidating Trust
Crew members ogle gold bars on deck after being brought up from the sea floor.
Recovery Limited Partnership Liquidating Trust
Crew members looking at gold bars retrieved from the ocean floor.
Recovery Limited Partnership Liquidating Trust
Journalist Dylan Taylor-Lehman looks through case files.
National Geographic
Veteran US Marshal Mark Stroh lifting box of files in a dramatic reconstruction.
National Geographic
Lawyer Quintin Lindsmith works on case files.
Gold bars and coins on the bottom of the sea bed off the cost of North Carolina.
US Marshal Christopher Crotty waits in his car in a dramatic reconstruction.
National Geographic
A case displaying the missing 500 commemorative gold coins.
Recovery Limited Partnership Liquidating Trust
A lot has happened to Thompson since Kinder’s book was published in 1998. Benstead and his production team combed through more than 600 hours of archival footage from the original expedition, as well as over 700 pages of court transcripts. “We also consulted multiple figures who we didn’t film with but who helped inform the story,” said Benstead. “In the editing process, National Geographic’s research department, together with our team, worked diligently to do their best to bottom out every fact, every claim. In a story that is so contested, this really helped us feel confident in standing behind the resulting films.”
“One of the main challenges was in condensing an incredibly complex 30-year saga into three films,” Benstead continued. “There were many legal cases and side stories that we had to exclude or could only touch on. And there were areas of the story that were strongly disputed by different sides. Sometimes we had to make choices that didn’t fully satisfy either camp, but we did our best to remain fair to the plurality of viewpoints, while also telling a powerful story.”
The director remains in awe of the original discovery, however badly the adventure turned out. “For the guys on the boat, almost without exception, this period was one of the best times of their lives,” he said. “It was a privilege to relive their struggles and final triumph in finding the gold. I still find it remarkable that they found the SS Central America in almost two miles of water with the resources they had in the 1980s.”
The experience also instilled “a real respect for the people who shared their story with us, especially Tommy’s family members, who have had so much written about them over the years,” said Benstead. “They didn’t trust us easily, and I feel very fortunate that they took part. Whenever people share the deepest, most affecting parts of their lives with you, you walk away carrying a big responsibility. I hope that they feel we have done their side of the story justice.”
Did Benstead come to his own conclusions about whether or not Thompson committed fraud? “Different people have different viewpoints on Tommy, even amongst those on the boat, investors, lawyers, and law enforcement,” he said. “We felt it was very important to allow the series to reflect this diversity and to allow the audience to make up their own mind. My own view is that Tommy isn’t a con man, and to be in prison for approaching nine years for contempt of court feels like a sad reflection on the US justice system. But it is also the case that, albeit under immense pressure, he made certain choices (like going on the run), which contributed to his own downfall. I hope that in the coming years his achievements, which have been obscured by the legal circus, are given the recognition that they deserve.”
Cursed Gold: A Shipwreck Scandal is now streaming on Disney+ and Hulu.
Enlarge/ Ernest Shackleton died on board the Quest in 1922. Forty years later, the ship sank off Canada’s Atlantic Coast.
Tore Topp/Royal Canadian Geographical Society
Famed polar explorer Ernest Shackleton famously defied the odds to survive the sinking of his ship, Endurance, which became trapped in sea ice in 1914. His luck ran out on his follow-up expedition; he died unexpectedly of a heart attack in 1922 on board a ship called Quest. The ship survived that expedition and sailed for another 40 years, eventually sinking in 1962 after its hull was pierced by ice on a seal-hunting run. Shipwreck hunters have now located the remains of the converted Norwegian sealer in the Labrador Sea, off the coast of Newfoundland, Canada. The wreckage of Endurancewas found in pristine condition in 2022 at the bottom of the Weddell Sea.
The Quest expedition’s relatively minor accomplishments might lack the nail-biting drama of the Endurance saga, but the wreck is nonetheless historically significant. “His final voyage kind of ended that Heroic Age of Exploration, of polar exploration, certainly in the south,” renowned shipwreck hunter David Mearns told the BBC. “Afterwards, it was what you would call the scientific age. In the pantheon of polar ships, Quest is definitely an icon.”
As previously reported, Endurance set sail from Plymouth, Massachusetts, on August 6, 1914, with Shackleton joining his crew in Buenos Aires, Argentina. By January 1915, the ship had become hopelessly locked in sea ice, unable to continue its voyage. For 10 months, the crew endured the freezing conditions, waiting for the ice to break up. The ship’s structure remained intact, but by October 25, Shackleton realized Endurance was doomed. He and his men opted to camp out on the ice some two miles (3.2 km) away, taking as many supplies as they could with them.
Compacted ice and snow continued to fill the ship until a pressure wave hit on November 13, crushing the bow and splitting the main mast—all of which was captured on camera by crew photographer Frank Hurley. Another pressure wave hit in late afternoon November 21, lifting the ship’s stern. The ice floes parted just long enough for Endurance to finally sink into the ocean, before closing again to erase any trace of the wreckage.
When the sea ice finally disintegrated in April 1916, the crew launched lifeboats and managed to reach Elephant Island five days later. Shackleton and five of his men set off for South Georgia the next month to get help—a treacherous 720-mile journey by open boat. A storm blew them off course, and they ended up landing on the unoccupied southern shore. So Shackleton left three men behind while he and a companion navigated dangerous mountain terrain to reach the whaling station at Stromness on May 2. A relief ship collected the other three men and finally arrived back on Elephant Island in August. Miraculously, Shackleton’s entire crew was still alive.
Enlarge/ This is the stern of the good ship Endurance, which sank off the coast of Antarctica in 1915 after being crushed by pack ice. An expedition located the shipwreck in pristine condition in 2022 after nearly 107 years.
Falklands Maritime Heritage Trust/NatGeo
Shackleton’s last voyage
By the time Shackleton got back to England, the country was embroiled in World War I, and many of his men enlisted. Shackleton was considered too old for active service. He was also deeply in debt from the Endurance expedition, earning a living on the lecture circuit. But he still dreamed of making another expedition to the Arctic Ocean north of Alaska to explore the Beaufort Sea. He got seed money (and eventually full funding) from an old school chum, John Quillier Rowett. Shackleton purchased a wooden Norwegian whaler, Foca I, which his wife Emily renamed Quest.
3D model of a 100-year-old shipwreck off the western coast of Australia. Credit: Daniel Adams, Curtin University HIVE.
A small underwater drone called Hydrus has located the wreckage of a 100-year-old coal hulk in the deep waters off the coast of western Australia. Based on the data the drone captured, scientists were able to use photogrammetry to virtually “rebuild” the 210-foot ship into a 3D model (above). You can explore an interactive 3D rendering of the wreckage here.
The use of robotic submersibles to locate and explore historic shipwrecks is well established. For instance, researchers relied on remotely operated vehicles (ROVs) to study the wreckage of the HMS Terror, Captain Sir John S. Franklin‘s doomed Arctic expedition to cross the Northwest Passage in 1846. In 2007, a pair of brothers (printers based in Norfolk) discovered the wreck of the Gloucester, which ran aground on a sandbank off the coast of Norfolk in 1682 and sank within the hour. Among the passengers was James Stuart, Duke of York and future King James II of England, who escaped in a small boat just before the ship sank.
In 2022, the Falklands Maritime Heritage Trust and National Geographicannounced the discovery of British explorer Sir Ernest Shackleton‘s ship Endurance. In 1915, Shackleton and his crew were stranded for months on the Antarctic ice after the ship was crushed by pack ice and sank into the freezing depths of the Weddell Sea. The wreckage was found nearly 107 years later, 3,008 meters down, roughly four miles (6.4 km) south of the ship’s last recorded position. The wreck was in pristine condition partly because of the lack of wood-eating microbes in those waters. In fact, the lettering “ENDURANCE” was clearly visible in shots of the stern.
And just last year, an ROV was used to verify the discovery of the wreckage of a schooner barge called Ironton, which collided with a Great Lakes freighter called Ohio in Lake Huron’s infamous “Shipwreck Alley” in 1894. The wreck was so well-preserved in the frigid waters of the Great Lakes that its three masts were still standing and its rigging still attached. That discovery could help resolve unanswered questions about the ship’s final hours.
Enlarge/ Deployment of one of Advanced Navigation’s Micro Autonomous Underwater Vehicles (AUV).
Advanced Navigation
According to Advanced Navigation, there are some 3 million undiscovered shipwrecks around the world—1,819 recorded wrecks lying off the coast of Western Australia alone. That includes the Rottnest ship graveyard just southwest of Rottnest Island, with a seabed some 50 to 200 meters below sea level (164 to 656 feet). The island is known for the number of ships wrecked near its shore since the 17th century. The Rottnest graveyard is more of a dump site for scuttling obsolete ships, at least 47 of which would be considered historically significant.
However, this kind of deep ocean exploration can be both time-consuming and expensive, particularly at depths of more than 50 meters (164 feet). Hydrus was designed to reduce the cost of this kind of ocean exploration significantly. One person can deploy the drone because of its compact size, so there is no need for large vessels or complicated launch systems. And Hydrus can capture georeferenced 4K video and still images at the same time. Once this latest expedition realized they had found a shipwreck, they were able to deploy a pair of the drones to take a complete survey in just five hours.
Hydrus captured this footage of the 210-foot wreck of a 19th-century coal hulk. Credit: Advanced Navigation
Ross Anderson, curator of the Western Australia Museum, was able to identify the wreck as an iron coal hulk once used in Freemantle Port to service steamships, probably built in the 1860s–1890s and scuttled in the graveyard sometime in the 1920s. The geolocation data provided to scientists at Curtin University HIVE enabled them to use photogrammetry to convert that data into a 3D digital model. “It can’t be overstated how much this structure in data assists with constraining feature matching and reducing the processing time, especially in large datasets,” Andrew Woods, a professor at the university, said in a statement.
The expedition team’s next target using the Hydrus technology is the wreck of the luxury passenger steamship SS Koombana, which disappeared somewhere off Port Hedland en route to Broome during a tropical cyclone in 1912, with 150 on board presumed to have perished. The only wreckage recovered at the time was part of a starboard bow planking, a stateroom door, a panel from the promenade deck, and a few air tanks. There were a couple of reports in the 1980s of “magnetic anomalies” in the seabed off Bedout Island, part of the route the Koombana would have taken. But despite several deep-water expeditions in the early 2010s, to date the actual shipwreck has not been found.
