NASA eyes giant ‘meteorite’ crater beneath Greenland’s ice

NASA eyes giant ‘meteorite’ crater beneath Greenland’s ice

The newly discovered huge meteorite crater beneath Greenland's ice measures a little over 22 miles wide, and is freely considered one of the largest meteorite impact sites on the planet, as long as scientists confirm that it was created as a result of an impact between a large space rock and Earth. We will remind that earlier in Greenland under the glacier Hiawatha was found a crater nearly perfectly circular with a diameter of 31 km.

Mr MacGregor said: "The ice layers above this second crater are unambiguously older than those above Hiawatha, and the second crater is about twice as eroded".

According to data obtained by Moderate Resolution Imaging Spectroradiometer instruments on NASA's Terra and Aqua satellites along with those from NASA's Operation IceBridge, the crater is about 22.7 miles (36.5 km) wide, which makes it the 22nd largest impact crater on Earth.

More specifically, this second ancient subglacial crater detected by the USA space agency stretches across about 37 kilometers under two kilometers of ice in northwest Greenland.

Now, after a couple of months, NASA has detected another asteroid-impact crater buried under two kilometers of ice in northwest Greenland.

Joseph MacGregor, a glaciologist leading a NASA team to scan Greenland for these phenomena, says an impact event within the past 2.6 million years, like an asteroid slamming into Earth, could be the cause of the crater or even both craters.

Researchers also studied data from commercial satellites and radar images of bedrock collected by NASA's Operation IceBridge.

More news: Measles outbreak to persist until June - Health Experts
More news: Manchester United suffer heaviest home European loss
More news: Iran marks 40th anniversary of Islamic Revolution

The potential exists that a collapsed volcanic caldera could have created the impression, but evidence indicating a volcano are absent. "Helping identify one large impact crater beneath the ice was already very exciting, but now it looked like there could be two of them". By employing computer models that can track the production of large craters on Earth, they found that the abundance of said craters that should naturally form close to one another, without the need for a twin impact, was consistent with Earth's cratering record.

Scientists have recognized about 200 affect craters on our planet, however that is exclusively the second time in historical past that a crater has been detected beneath an ice sheet.

'I began asking myself 'Is this another impact crater?

Vertical lines point to the suspected rim and orange triangles mark small peaks within a potential impact crater beneath Greenland's ice.

'But the areas of known volcanic activity in Greenland are several hundred miles away. The new crater is located about 183 kilometers away from the Hiawatha Glacier. Do the underlying data support that idea? Experts say that the crater was formed by a meteorite that struck Earth "less than 3 million years ago" and likely "rocked the Northern Hemisphere".

The latest crater is just 113 miles from the Hiawatha cavity and Nasa said it is "improbable but not impossible that this pair is unrelated".

Scientists are fairly certain the new crater really is from an impact.

Related Articles

  • Joker to join the Super Smash Bros. Ultimate roster before April

    Joker to join the Super Smash Bros. Ultimate roster before April

    Joker is the second DLC fighter to come to the game after the Super Mario series' Piranha Plant, which released a few weeks ago. In today's Nintendo Direct , it was revealed that Joker will be joining the already very big roster by the end of April.
    Airbus scraps production of A380 superjumbo

    Airbus scraps production of A380 superjumbo

    The European company said it would enter into talks with unions in coming weeks over the 3,000-3,500 jobs potentially affected. Some insiders worry that Airbus will lose a valuable symbol of pride and commercial audacity when production ends in 2021.
    Ex-White House aide who wrote critical book sues Trump

    Ex-White House aide who wrote critical book sues Trump

    The White House had dozens of people sign such agreements at the beginning of the president's term. He signed a nondisclosure agreement.
  • The Legend of Zelda: Link's Awakening - Announcement Trailer - Nintendo Switch

    The Legend of Zelda: Link's Awakening - Announcement Trailer - Nintendo Switch

    Few details were revealed, although Nintendo promises new creation tools for Super Mario Maker 2 , including slopes. If it's the latter we would imagine (and hope) that the release date could be sooner, rather than later.
    Hybrid cloud worth $1T by 2020, says bullish IBM

    Hybrid cloud worth $1T by 2020, says bullish IBM

    To make the links to rival clouds, IBM will rely on open-source software package Kubernetes. IBM has made its supercomputing platform Watson portable.
    Chinas Xi to meet top US trade officials

    Chinas Xi to meet top US trade officials

    During an interview Monday, White House Counselor Kellyanne Conway said the president wants to meet with President Xi very soon. But they have resisted making major changes in development plans they see as a path to prosperity and global influence.
  • Tiger Woods says travel concerns led him to skip Saudi event

    Tiger Woods says travel concerns led him to skip Saudi event

    Despite the difficulties of the course, Woods shares the belief among players that Riviera is one of the better venues on tour. Six of the world's top 10 are in the field along with World No.16 and defending champion Bubba Watson .
    Tesla introduces Dog Mode to keep furry friends cool

    Tesla introduces Dog Mode to keep furry friends cool

    If a minimal threat is discovered, like someone leaning on the vehicle , it switches to an "alert mode". To enable Dog Mode, tap the fan icon at the bottom of the touchscreen when your auto is parked.
    Ryan Adams accused of sexual misconduct

    Ryan Adams accused of sexual misconduct

    Bretler, claims he never knew he was texting underage girls, and he certainly wouldn't do so had he known of their real age. She claims their musical conversations soon turned sexual and that Adams exposed himself to her over Skype at least once.
  • LG’s upcoming flagship smartphone will use its OLED display as a speaker

    LG’s upcoming flagship smartphone will use its OLED display as a speaker

    Instead, it will be using Crystal Sound OLED or CSO which, in a nutshell, turns the screen into a speaker and an amplifier. If the image is accurate, the LG G8's design and visible features aren't very exciting.
    Jussie Smollett gives details about his attack and says he’s ‘forever changed’

    Jussie Smollett gives details about his attack and says he’s ‘forever changed’

    Two weeks after Jussie Smollett was brutally attacked in a reported hate crime , the Empire star is speaking out. There's no which way you cut it. "I don't need some MAGA hat as the cherry on some racist sundae".
    Serial killer Samuel Little sketched his victims

    Serial killer Samuel Little sketched his victims

    CNN has reached out to EJ Leach, the attorney representing Little in the Texas case, and has not yet received a response. Samuel Little drew the portrait from memory almost two decades after he says he killed the woman in 1996 in Los Angeles.