Meters

A US navy destroyer sunk during World War II has been found nearly 7,000 meters (23,000 feet) below sea level off the Philippines, making it the world's deepest shipwreck ever located, an American exploration team said.  The USS Samuel B. Roberts went down during a battle off the central island of Samar on 25 October 1944 as US forces fought to liberate the Philippines – then a US colony – from Japanese occupation.A crewed submersible filmed, photographed, and surveyed the battered hull of the "Sammy B" during a series…

The oceans are one of our planet's most important carbon sinks, with currently around 39,000 gigatons of carbon dioxide locked away – that's around 50 times more than what's circulating in the atmosphere right now.  However, we can't rely on this carbon capture and storage to solve our climate crisis problem, because we're producing too much excess CO2 too quickly.What's more, a new study suggests that the deep ocean isn't able to hold anywhere near as much carbon as previously thought.Scientists looked at the cycle of…

A fisherman on the Mekong river in Cambodia has hooked the biggest freshwater fish ever recorded, scientists said – a 300-kilogram stingray.The giant freshwater stingray, which measured four meters (13 feet) from snout to tail, was caught last week and released back into the wild after being fitted with a tag to track its behavior.  The monstrous bottom-dweller beat the previous record for biggest recorded freshwater fish, held by a 293-kilogram (646-pound) Mekong giant catfish caught in Thailand in 2005, the US-funded…

When Mars helicopter Ingenuity was packed off on a one-way trip to the red planet, its engineers had a plan for five flights.That didn't mean more flights were not on the cards; in fact, it's normal for NASA's spacecraft mission parameters to be set conservatively. But late last year, NASA extended the mission indefinitely, and the little helicopter that could has now blown past its initial objectives: It completed a milestone 25 flights in the thin, tenuous Martian atmosphere.  Actually, it has completed 28 flights at…

Stonehenge has been intensively studied for centuries. Yet even now, we are still discovering new aspects of the famous site.An archaeological 'biopsy' of the surrounding landscape has revealed a hidden network of large pits encircling the stone structure.  The study is the first extensive electromagnetic induction survey of the region, and it has helped archaeologists uncover hundreds of large pits, each over 2.4 meters (7.8 ft) wide. Some of these were most certainly made by human hands thousands of years ago.What…

A team of Chinese scientists has discovered a giant new sinkhole with a forest at its bottom. The sinkhole is 630 feet (192 meters) deep, according to the Xinhua news agency, deep enough to just swallow St. Louis' Gateway Arch.  A team of speleologists and spelunkers rappelled into the sinkhole on Friday (May 6), discovering that there are three cave entrances in the chasm, as well as ancient trees 131 feet (40 meters) tall, stretching their branches toward the sunlight that filters through the sinkhole entrance."This is…

Apple has started selling a three-meter Thunderbolt 4 Pro cable, complete with an eye-watering $159 price tag. That might seem like a lot of money for a USB cable, but there's a bit more to unpack here.Three meters is approximately 9.8 feet. Right now, this is the longest Thunderbolt 4 cable on the market. Others, like OWC, Belkin, and Plugable tend to sell up to two meters (about 6.6 feet). That's the length Intel and its partners publish for the standard.Those, however, are a mix of active and passive cables. Teardowns…