Asteroid expert Gretchen Benedix looks at nine asteroid disasters from movies and TV and rates them based on realism. She looks at "Armageddon" (1998), "Greenland" (2020), "Deep Impact" (1998 ...

What looks to be a large impact crater has been identified beneath the Greenland ice sheet ... was probably dug out by a 1.5km-wide iron asteroid sometime between about 12,000 and three million ...

In a study published Wednesday in the journal Science Advances, the team reports that there is indeed a crater, which was made by a half-mile-wide iron asteroid slamming into Greenland between ...