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Massive Crater Discovered Under Greenland Ice

In a remote area of northwest Greenland, an international team of scientists has made a stunning discovery, buried beneath a kilometer of ice. It’s a meteor impact crater, 300 meters deep and bigger than Paris or the Beltway around Washington, DC. It is one of the 25 largest known impact craters on Earth, and the first found under any of our planet’s ice sheets. The researchers first spotted the crater in July 2015, while they were inspecting a new map of the topography beneath Greenland's ice sheet that used ice-penetrating radar data primarily from Operation IceBridge, an ongoing NASA airborne mission to track changes in polar ice, and earlier NASA airborne missions in Greenland. Read more: https://go.nasa.gov/2RSkn1u This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at: http://svs.gsfc.nasa.gov/12941 Credit: NASA's Goddard Space Flight Center/Jefferson Beck Footage and co-production courtesy of the National History Museum of Denmark/University of Copenhagen, the Underground Channel, and the Alfred Wegener Institute Music credit: "Timelapse Variations - Remixed" Natalie Draper, Composer Original recording: Symphony Number One, SNOtone Records Dan Rorke, Audio Engineer Jordan Smith, Music Director http://www.nataliedraper.net https://symphonynumber.one If you liked this video, subscribe to the NASA Goddard YouTube channel:    / nasaexplorer   Follow NASA’s Goddard Space Flight Center · Instagram   / nasagoddard   · Twitter   / nasagoddard   · Twitter   / nasagoddardpix   · Facebook:   / nasa.gsfc   · Flickr http://www.flickr.com/photos/gsfc