The scientist collects samples of craters. / guardian.com photo
Greenland 12,000 A huge meteorite fell for a year, leaving a larger crater above Paris. It was recently found under the ice using a modern radar.
This is the first such crater ever found in Greenland and, generally, after all the continental waters of the Earth. As Science Advances says, the size of this crater is the 25th of all known on our planet.
The 31-kilometer crater is under the Hiawatha ice. The meteorite had a significant impact on the region, perhaps even the world. But his story is just beginning to count.
"Particles that were affected by the climate were probably thrown into the atmosphere. There may have been a lot of ice breaking and a lot of fresh water hit the Ners Strait between Canada and Greenland, which affected ocean currents throughout the region," said one of the authors of the article, John Paden, professor of electrical engineering and computer science at the University of Kansas.
The discovery was made in 2015, but the international team of scientists has since verified the results. More data was collected using more advanced radar technology.
"It was not possible to date the crater for a while, but its condition is very suggestive of the fact that this pit formed when the ice began to cover Greenland, so it is less than 3 million years old and maybe just over 12,000 years , near the end of the last ice age, "said Professor Kurt Kjaer of the Danish Museum of Natural History, GeoGenetics Center.
Scientists plan to collect samples from deeper layers. This would help to know when the collision occurred and what its impact on Earth's life was at that time.