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Keyword: antarctica

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  • Geoscientists Find Large Impact Crater in Greenland

    11/15/2018 7:47:28 AM PST · by ETL · 17 replies
    Sci-News.com ^ | Nov 15, 2018 | News Staff / Source
    An international team of geoscientists from the United States, Canada and Europe has discovered a large impact crater beneath the Hiawatha Glacier in remote northwest Greenland. A paper on the discovery was published in the journal Science Advances. The Hiawatha impact crater is approximately 19.2 miles (31 km) wide and lies under an ice sheet that is 0.6 miles (1 km) thick.The scientists believe this crater was formed by a 0.6-mile wide iron asteroid that slammed into the Earth at the end of the Pleistocene epoch, perhaps as recently as 12,000 years ago. ..." “Researchers were looking at the map...
  • Massive crater under Greenland’s ice points to climate-altering impact in the time of humans

    11/14/2018 3:09:50 PM PST · by ETL · 51 replies
    ScienceMag.com ^ | Nov 14, 2018 | Paul Voosen
    On a bright July day 2 years ago, Kurt Kjær was in a helicopter flying over northwest Greenland—an expanse of ice, sheer white and sparkling. Soon, his target came into view: Hiawatha Glacier, a slow-moving sheet of ice more than a kilometer thick. It advances on the Arctic Ocean not in a straight wall, but in a conspicuous semicircle, as though spilling out of a basin. Kjær, a geologist at the Natural History Museum of Denmark in Copenhagen, suspected the glacier was hiding an explosive secret. The helicopter landed near the surging river that drains the glacier, sweeping out rocks...
  • Beneath Antarctica's Ice, Intriguing Evidence of Lost Continents

    11/13/2018 9:40:34 AM PST · by ETL · 45 replies
    LiveScience.com ^ | Nov 13, 2018 | Stephanie Pappas, Live Science Contributor
    A new map reveals the remnants of ancient continents that lurk beneath Antarctica's ice. The map shows that East Antarctica is made up of multiple cratons, which are the cores of continents that came before, according to study leader Jörg Ebbing, a geoscientist at Kiel University in Germany. "This observation leads back to the break-up of the supercontinent Gondwana and the link of Antarctica to the surrounding continents," Ebbing told Live Science. The findings help reveal fundamental facts about Earth's tectonics and how Antarctica's land and ice sheets interact, he wrote in an email. Because the continent is so remote...
  • Two men attempt solo Antarctica crossing in audacious effort to make history

    11/12/2018 12:38:46 PM PST · by ETL · 50 replies
    FoxNews.com ^ | Nov 12, 2018 | Christopher Carbone
    American adventure-athlete Colin O'Brady, 33, and British Army Captain Louis Rudd, 49, embarked on the perilous, 921-mile trek on Oct. 31 — both carrying sleeping bags, freeze-dried food, cross-country skis, hand-held satellite phones and modems, a GPS tracker and portable solar panels. In order for the journey to be considered unsupported, the competitors cannot accept any help from the few people they might encounter, not even a cup of hot tea. They have, however, raised north of $200,000 each from corporate sponsors and private donors in an effort to help with their trip.According to the New York Times, the last person to...
  • Rectangular icebergs in Antarctica

    10/24/2018 9:24:38 AM PDT · by Eowyn2 · 28 replies
    Fellowship Of The Minds ^ | October 24, 2018 | Dr. Eowyn
    On Oct. 16, 2018, NASA's IceBridge aerial survey flew over the northern Antarctic Peninsula. IceBridge senior support scientist Jeremy Harbeck spotted two sharp-angled rectangular icebergs floating among sea ice just off of the Larsen C ice shelf.
  • NASA Finds Perfectly Rectangular Iceberg In Antarctica As If It Was Deliberately Cut

    10/22/2018 5:57:54 PM PDT · by C19fan · 86 replies
    Forbes ^ | October 22, 2018 | Trevor Nace
    ASA just shared a stunning image of a nearly perfect rectangular iceberg in Antarctica. The monolithic slab of ice, floating just off the Larsen C ice shelf appears quite unnatural given the 90-degree angles. NASA took the image as part of Operation IceBridge, a mission to image Earth's polar regions in order to understand how ice (thickness, location, accumulation, etc.) has been changing in recent years.
  • Elusive sea cucumber dubbed the 'headless chicken monster' is caught on film [tr]

    10/22/2018 6:28:08 AM PDT · by C19fan · 8 replies
    UK Daily Mail ^ | October 21, 2018 | Bianca Bogato
    A rare deep-sea creature dubbed the 'headless chicken monster' has been filmed for the first time by Australian researchers. The elusive Enypniastes eximia sea cucumber, which is usually only found in the Gulf of Mexico, was spotted in the Southern Ocean in the East Antarctic using camera technology developed by the Australian Antarctic Division (AAD). 'Some of the footage we are getting back from the cameras is breathtaking, including species we have never seen in this part of the world,' AAD Program leader Dr Dirk Welsford said.
  • Bizarre Particles Keep Flying out of Antarctica's Ice, and They Might Shatter Modern Physics

    10/03/2018 9:43:57 PM PDT · by bitt · 78 replies
    scienticamerican.com ^ | 9/29/2018 | Rafi Letzier
    Cosmic rays emanating from the south polar ice cap could lead to new physics There’s something mysterious coming up from the frozen ground in Antarctica, and it could break physics as we know it. Physicists don’t know what it is exactly. But they do know it’s some sort of cosmic ray—a high-energy particle that’s blasted its way through space, into the Earth, and back out again. But the particles physicists know about—the collection of particles that make up what scientists call the Standard Model (SM) of particle physics—shouldn’t be able to do that. Sure, there are low-energy neutrinos that can...
  • NASA satellite launched to measure Earth’s ice changes

    09/15/2018 11:39:46 AM PDT · by Olog-hai · 17 replies
    Associated Press ^ | Sep. 15, 2018 12:13 PM EDT
    A NASA satellite designed to precisely measure changes in Earth’s ice sheets, glaciers, sea ice and vegetation was launched into polar orbit from California early Saturday. A Delta 2 rocket carrying ICESat-2 lifted off from Vandenberg Air Force Base at 6:02 a.m. and headed over the Pacific Ocean. NASA Earth Science Division director Michael Freilich says that the mission in particular will advance knowledge of how the ice sheets of Greenland and Antarctica contribute to sea level rise. The melt from those ice sheets alone has raised global sea level by more than 1 millimeter (0.04 inch) a year recently,...
  • An engineering firm wants to tow icebergs thousands of miles from Antarctica(trunc)

    09/08/2018 2:57:42 PM PDT · by sodpoodle · 56 replies
    Business Insider / MSN ^ | 9/8/2018 | Jeremy Berke
    A Dubai-based engineering firm wants to tow icebergs from Antarctica to Dubai in order to provide the city with a reserve of fresh drinking water. The firm will use satellite imagery to select candidate icebergs. It's eyeing icebergs that are between 2,000 and 7,000 feet long, and weigh around 100 million tons. But the plan is short on details: the firm doesn't know exactly how it will get the icebergs to Dubai, or how the icebergs will be stored. What do you do if you're a fast-growing city in the desert with lots of thirsty people and little freshwater reserves?...
  • Carbon Dioxide ‘Leak’ in Southern Ocean May Have Warmed Earth for 11,000 Years

    08/13/2018 3:01:24 PM PDT · by ETL · 42 replies
    Sci-News ^ | Aug 1, 2018 | News Staff / Source
    “We think we may have found the answer. Increased circulation in the Southern Ocean allowed carbon dioxide to leak into the atmosphere, working to warm the planet,” said Princeton University’s Professor Daniel Sigman, co-author of the study. For years, researchers have known that growth and sinking of phytoplankton pumps carbon dioxide deep into the ocean, a process often referred to as the ‘biological pump.’ “The biological pump is driven mostly by the low latitude ocean but is undone closer to the poles, where carbon dioxide is vented back to the atmosphere by the rapid exposure of deep waters to the...
  • 99-Million-Year-Old Snake Hatchling Found Encased in Burmese Amber

    08/12/2018 9:05:43 AM PDT · by ETL · 23 replies
    Sci-News.com ^ | Jul 19, 2018 | News Staff / Source
    The newly-reported specimen was obtained from an amber deposit in the Angbamo area in Myanmar’s Kachin province.The fossil is a 1.6-inch (4.75 cm) long postcranial skeleton made up of 97 vertebrae; the snake’s head is missing. It dates from the Late Cretaceous epoch, approximately 99 million years ago.“This snake, named Xiaophis myanmarensis, is linked to ancient snakes from Argentina, Africa, India and Australia,” said University of Alberta’s Professor Michael Caldwell.“It is an important — and until now, missing — component of understanding snake evolution from southern continents, that is Gondwana, in the mid-Mesozoic.” “At 99 million years old, it dates...
  • Scientists Observe Coldest Temperatures Ever on Earth’s Surface

    06/30/2018 12:01:55 PM PDT · by rktman · 73 replies
    breitbart.com ^ | 6/30/2018 | Tom Williams
    Researchers released a report this week revealing “ultralow surface temperatures” in East Antarctica that surpass the coldest temperatures ever recorded on the earth’s surface. The lowest measured air temperature on earth is −89.2 °C (−129 F) on 23 July 1983, observed at Vostok Station in Antarctica, but new data published in Geophysical Research Letters this week, has found that some 100 different locations on the East Antarctic Plateau reached temperatures of -98° C (-144° F) during the Antarctic polar night between 2004–2016. A team from the National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder have...
  • Bedrock in West Antarctica rising at surprisingly rapid rate

    06/22/2018 7:37:36 AM PDT · by BenLurkin · 35 replies
    Phys.org ^ | June 21, 2018, | The Ohio State University
    The unexpectedly fast rate of the rising earth may markedly increase the stability of the ice sheet against catastrophic collapse due to ice loss, scientists say. Moreover, the rapid rise of the earth in this area also affects gravity measurements, which implies that up to 10 percent more ice has disappeared in this part of Antarctica than previously assumed. Researchers led by scientists at The Ohio State University used a series of six GPS stations (part of the POLENET-ANET array) attached to bedrock around the Amundsen Sea Embayment to measure its rise in response to thinning ice. The "uplift rate"...
  • Antarctica is melting faster, and we're not ready for the sea level rise that's coming (tr)

    06/17/2018 11:07:27 AM PDT · by EdnaMode · 107 replies
    Business Insider ^ | June 16, 2018 | Kevin Loria
    In the future, seas will rise far higher than they are today. The question is whether it happens quickly or slowly. There's enough ice stacked on top of Antarctica to raise seas around the globe by almost 200 feet. While it takes time for major changes to occur with that much ice, Antarctica is melting faster than we thought, according to a study recently published in the journal Nature. The melting rate has been speeding up significantly in recent years. Between 1992 and 2017, Antarctica lost more than 3.3 trillion tons of ice, causing sea levels around the globe to...
  • Ancient Greenland was much warmer than previously thought

    06/11/2018 4:13:13 PM PDT · by SunkenCiv · 49 replies
    ScienceDaily ^ | June 4, 2018 | Northwestern University
    Although researchers have long known that the last two interglacial periods experienced warming in the Arctic... Just beyond the northwest edge of the vast Greenland Ice Sheet, Northwestern University researchers have discovered lake mud that beat tough odds by surviving the last ice age. The mud, and remains of common flies nestled within it, record two interglacial periods in northwest Greenland. Although researchers have long known these two periods -- the early Holocene and Last Interglacial -- experienced warming in the Arctic due to changes in Earth's orbit, the mix of fly species preserved from these times shows that Greenland...
  • Ancient Supervolcano Affected the Ends of the Earth

    11/08/2012 6:20:32 PM PST · by SunkenCiv · 28 replies
    LiveScience ^ | November 5, 2012 | Staff
    About 74,000 years ago, the Toba volcano on the Indonesian island of Sumatra erupted with catastrophic force. Estimated to be 5,000 times larger than the 1980 eruption of Mount St. Helens, it is believed to be the largest volcanic event on Earth in the last 2 million years. Toba spewed enough lava to build two Mount Everests, it produced huge clouds of ash that blocked sunlight for years, and it the left behind a crater 31 miles (50 kilometers) across. The volcano even sent enough sulphuric acid into the atmosphere to create acid rain downpours in the Earth's polar regions,...
  • Antarctica to hold first-ever Pride event in June

    06/01/2018 3:04:48 PM PDT · by detective · 68 replies
    MSN News ^ | 6/1/2018 | Aris Folley
    Antarctica will host its first ever LGBTQ pride month event this month. The ungoverned continent, which was dubbed the first gay-friendly continent by humanitarian organization Planting Peace, will hold the event on June 9, according to Mic News. Employees based at the McMurdo Station, Antarctica's largest research station, will hold the celebration at the station's bar. The event will feature games and movies, Shawn Waldron, an organizer who works with the station's support crew, told Earther. The 10 LGBTQ employees of McMurdo Station set the stage for the upcoming LGBTQ pride event by braving the cold to hold up a...
  • Tests on skull fragment cast doubt on Adolf Hitler suicide story

    10/01/2009 7:17:05 AM PDT · by COUNTrecount · 51 replies · 2,095+ views
    Bone with bullet hole found by Russians in 1946 came from an unknown woman, not the German leader Tests on skull fragment cast doubt on Adolf Hitler suicide In countless biographies of Adolf Hitler the story of his final hours is recounted in the traditional version: committing suicide with Eva Braun, he took a cyanide pill and then shot himself on 30 April 1945, as the Russians bombarded Berlin. Some historians expressed doubt that the Führer had shot himself, speculating that accounts of Hitler's death had been embellished to present his suicide in a suitably heroic light. But a fragment...
  • Hitler definitely died in 1945, according to new study of his teeth

    05/20/2018 9:08:09 AM PDT · by golux · 71 replies
    The Telegraph ^ | 19 May 2018 | R. Mulholland
    French researchers claim to have put an end to conspiracy theories surrounding the death of Adolf Hitler, after a study of his teeth proved he definitely died after taking cyanide and shooting himself in the head in Berlin in 1945. The researchers reached their conclusion after they were given rare access to fragments of Hitler’s teeth which have been held in Moscow since the end of World War II. "The teeth are authentic, there is no possible doubt. Our study proves that Hitler died in 1945," said professor Philippe Charlier. "We can stop all the conspiracy theories about Hitler. He...