
108 billion tons per year: Antarctica witnesses sudden rise in glacier ice
Winter sea ice cover in the Arctic has reached an unprecedented low. (Photo: AFP)
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The study led by Dr. Wang and Prof. Shen at Tongji University has found that between 2021 and 2023, the ice sheet experienced a record-breaking increase in overall mass.Antarctica experienced a moderate increase in sea ice until 2015, followed by a sharp decline starting in 2016.Tongji University researchers say satellite gravimetry data shows that from 2011 to 2020, the Antarctic Ice Sheet lost 142 gigatons of ice per year. That trend flipped between 2021 and 2023 when the ice sheet allegedly gained about 108 gigatons of ice per year. From 2002 to 2010, Antarctica's ice sheet was losing about 74 billion tons of ice per year. From 2011 to 2020, the loss nearly doubled to about 142 billion tons per year, mainly because of faster ice melting in West Antarctica and parts of East Antarctica.advertisementBut things changed after that — between 2021 and 2023, Antarctica actually gained ice at a rate of about 108 billion tons per year, mostly due to unusually high snowfall.While Antarctica is gaining, researchers earlier highlighted the trend is not visible in the Arctic. Winter sea ice cover in the Arctic has reached an unprecedented low at its annual peak, according to recent data from NASA and the National Snow and Ice Data Center (NSIDC).Nasa said that on March 22, 2025, the maximum extent of Arctic sea ice was recorded at 14.33 million square kilometres, falling below the previous record low of 14.41 million square kilometres set in 2017.Trending Reel
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Time of India
a day ago
- Time of India
Body of British scientist found 66 years after vanishing in Antarctic ice
Dennis Bell, whose body has been found in Antarctica after more than half a century (Photo: British Antarctic Survey) Sometimes, the end of the story is far from imaginary. What if a person died over half a century ago, and his corpse is found now? That's what happened with a young British scientist who vanished in one of the coldest, most remote places on Earth. Sixty-six years ago, an Antarctic glacier swallowed a young British scientist during a routine expedition, Dennis 'Tink' Bell, a meteorologist whose life became tethered forever to the frozen frontier. His disappearance, once framed in mystery and sorrow, has finally met its epilogue through the patient work of scientists and the movement of glaciers. What exactly happened? In January 2025, a Polish research team stationed at the Henryk Arctowski Polish Antarctic Station made a discovery that would rewrite a decades‑old chapter of Antarctic exploration. Human remains, emerging from the melting edge of Ecology Glacier on King George Island, were found embedded among rocks and remained surprisingly preserved after some sixty‑six years of disappearance, according to a press release by the British Antarctic Survey. Those remains were confirmed through DNA analysis at King's College London. Forensic geneticist Professor Denise Syndercombe Court matched them with samples from Dennis 'Tink' Bell's siblings, concluding the likelihood of their relationship was 'more than one billion times' greater than not. Who is Ben, and how did he die? Bell, then 25, was a meteorologist with the Falkland Islands Dependencies Survey, predecessor to today's British Antarctic Survey. In July 1959, while on a survey mission at Admiralty Bay, he fell into a hidden crevasse. His colleague Jeff Stokeseen again lowered a rope, and Bell secured it around his belt. As he neared the surface, the belt snapped, and Bell fell back into the chasm, never to be seen again. In early 2025, after the first discovery on January 19, a larger team of experts, including archaeologists, glaciologists, and anthropologists, returned to the site in February to carefully search the area. They recovered more of Dennis Bell's remains, along with over 200 of his personal belongings. These included items like parts of his radio, a flashlight, ski poles, a Swedish Mora knife, an engraved wristwatch, and even the stem of his old pipe. Once the recovery was complete, his remains were respectfully transported on the British research ship 'Sir David Attenborough' to the Falkland Islands. From there, with help from the Royal Air Force, they were flown to London. The process was overseen by Malcolm Simmons, the coroner for the British Antarctic Territory. Dennis's brother expresses grief Bell's brother David, now based in Australia, expressed the family's deep relief to the British Antarctic Survey, 'When my sister Valerie and I were notified that our brother Dennis had been found after 66 years, we were shocked and amazed. The British Antarctic Survey and British Antarctic Monument Trust have been a tremendous support, and together with the sensitivity of the Polish team in bringing him home, have helped us come to terms with the tragic loss of our brilliant brother. ' Dennis on the extreme right (Photo: BAS) Dennis Bell is now memorialized by Bell Point on King George Island. As his family determines how best to honour him, this belated homecoming is like a final measure of closure to a lost story of science, exploration, and enduring human connection.


Hindustan Times
2 days ago
- Hindustan Times
Scientists discover ancient whale with Pokemon-like face and predator teeth
Long before whales were majestic, gentle giants, some of their prehistoric ancestors were tiny, weird and feral. A chance discovery of a 25 million-year-old fossil on an Australian beach has allowed paleontologists to identify a rare, entirely new species that could unlock mysteries of whale evolution. In this photo taken on August 5, 2025 and released by Museums Victoria on August 13, 2025 shows the partial fossil skull of a Janjucetus dullardi at Museums Victoria in Melbourne. (AFP) Researchers this week officially named Janjucetus dullardi, a cartoonish creature with bulging eyes the size of tennis balls, in the Zoological Journal of the Linnean Society. Unlike today's whales, the juvenile specimen was small enough to fit in a single bed. Boasting fiendish teeth and a shark-like snout, however, this oddball of the ocean was nasty, mean and built to hunt. 'It was, let's say, deceptively cute,' said Erich Fitzgerald, senior curator of vertebrate paleontology at Museums Victoria Research Institute, and one of the paper's authors. 'It might have looked for all the world like some weird kind of mash-up between a whale, a seal and a Pokémon but they were very much their own thing.' Extinct species was an odd branch on the whale family tree The rare discovery of the partial skull, including ear bones and teeth, was made in 2019 on a fossil-rich stretch of coast along Australia's Victoria state. Jan Juc Beach, a cradle for some of the weirdest whales in history, is becoming a hotspot for understanding early whale evolution, Fitzgerald said. Few family trees seem stranger than that of Janjucetus dullardi, only the fourth species ever identified from a group known as mammalodontids, early whales that lived only during the Oligocene Epoch, about 34 to 23 million years ago. That marked the point about halfway through the known history of whales. The tiny predators, thought to have grown to 3 meters (10 feet) in length, were an early branch on the line that led to today's great baleen whales, such as humpbacks, blues and minkes. But the toothy ancestors with powerful jaws would have looked radically different to any modern species. 'They may have had tiny little nubbins of legs just projecting as stumps from the wall of the body,' said Fitzgerald. That mystery will remain tantalizingly unsolved unless a specimen is uncovered with more of its skeleton intact, which would be something of a miracle. Even the partial skull that allowed the initial identification this week was an astonishing discovery. For an amateur paleontologist, a life-long obsession paid off Janjucetus dullardi was named by researchers after an amateur fossil hunter who doesn't mind its looks in the slightest. 'It's literally been the greatest 24 hours of my life,' said Ross Dullard, who discovered the skull while fossil hunting at Jan Juc Beach. After Wednesday's confirmation of the new species, the school principal walked like a rock star onto campus with 'high fives coming left, right and center,' he said. His friends and family are probably just relieved it's over. 'That's all they've heard from me for about the last six years,' he said. Dullard was on a regular low-tide hunt at Jan Juc the day he spotted something black protruding from a cliff. Poking it dislodged a tooth. He knew enough to recognize it was unlikely to belong to a dog or a seal. 'I thought, geez, we've got something special here,' he said. Dullard sent photos to Museums Victoria, where Fitzgerald saw them and immediately suspected a new species. Ancient whale finds are rare but significant Confirming the find was another matter. This was the first mammalodontid to be identified in Australia since 2006 and only the third on record in the country. Fossils of sufficient quality, with enough of the right details preserved to confirm uniqueness, aren't common. 'Cetaceans represent a fairly miniscule population of all life,' Fitzgerald said. Millions of years of erosion, scavengers and ocean currents take their toll on whale skeletons too. 'It's only the chosen few, the vast minority of all whales that have ever lived and died in the oceans over millions of years, that actually get preserved as fossils,' he added. Finds such as Janjucetus dullardi can unlock insights into how prehistoric whales ate, moved, behaved — and evolved. Researchers said the discoveries also helped to understand how ancient cetacean species adapted to warmer oceans, as they study how today's marine life might respond to climate change. Meanwhile, Dullard planned to host a fossil party this weekend, featuring cetacean-themed games and whale-shaped treats in jello, to celebrate his nightmare Muppet find, finally confirmed. 'That's taken my concentration for six years,' he said. 'I've had sleepless nights. I've dreamt about this whale.'


India Today
4 days ago
- India Today
Swiss pilot soars past altitude record for solar-powered planes
Swiss pilot Raphael Domjan beat the altitude record for a solar-powered electric plane in a flight that took him soaring to 9,521 metres, his team announced SolarStratos plane made the landmark flight from Sion airport in southwest Switzerland on Tuesday, taking advantage of warm air thermals to go beyond the record that has stood for 15 certified altitude record for a solar plane stands at 9,235 metres (30,298 feet).advertisement The achievement is "one of those unforgettable peaks that define great human and technological adventures", the SolarStratos mission said in a flight lasted five hours and nine minutes."I share this moment of joy with all the people who have been preparing for this achievement for years," the 53-year-old "eco-explorer" data will be sent to the World Air Sports Federation governing body, which will decide whether to validate the new record."It is the pressure altitude corrected to standard density altitude that is recognised as the official reference for aviation altitude records," the SolarStratos team IMAGINATIONSDomjan is aiming to be the first to take a solar-powered plane above 10,000 metres -- flying at the same altitude as this barrier is broken, the team hopes to go on and make a first manned solar-powered flight into the stratosphere, which at Switzerland's latitude begins at around 12,000 metres."This achievement marks a major milestone on the path toward reaching the stratosphere using only solar power -- and already fulfils the mission's goal: to capture imaginations with emblematic, spectacular challenges that promote solar energy and the protection of our biosphere and planet," SolarStratos front-mounted single propeller plane, registration HB-SXA, is made of carbon fibre to ensure lightness and is 9.6 metres long, and its huge wingspan of 24.8 metres accommodates the 22 square metres of high-spec solar panels topping the wings, and allows for flying at low plane can take off at low speeds, from 50 kilometres per hour upwards. Its maximum speed is 140 kph, while its cruising speed is around 80 DREAM OF FLIGHTIn 2012, the pioneering Domjan became the first person to sail around the world in a fully solar-powered boat."It's important to demonstrate what we can achieve with solar energy," the adventurer told AFP."The dream of flight is probably the oldest dream of mankind."My goal is to show to the young generation of today and tomorrow that tomorrow it will still be possible to fly without burning any fossil energies, with emitting any carbon is what we want to achieve: it's really to show that the world of tomorrow can be better than what we have today."TWO-STAGE ASCENTA warm-up flight on July 31 got to 6,589 metres — surpassing the plane's previous best in 2024.A first attempt on Friday was quickly abandoned when the forecast thermals failed to materialise, saving the batteries for Sunday when the plane got to 8,224 the first phase of record attempts, the aircraft has to make maximum use of rising warm air currents to climb to around 4,000-5,000 then has to recharge its batteries at this altitude before climbing the flight is to be certified as a record, all the energy used during the flight must have been produced by the solar take-off, the batteries must be fully charged using solar energy, and the plane has to land under its own power -- it cannot glide back in on zero charge -- and have at least a 16 per cent charge in the current record was set in 2010 by the Solar Impulse experimental plane, with Swiss pilot Andre Borschberg at the project's promoter, Swiss explorer Bertrand Piccard, then built a second solar aircraft which successfully made a round-the-world trip, in stages, between March 2015 and July 2016.- Ends advertisement