We report the discovery of a large impact crater beneath Hiawatha Glacier in northwest Greenland. From airborne radar surveys, we identify a 31-kilometer-wide, circular bedrock depression beneath up to a kilometer of ice http://advances.sciencemag.org/content/4/11/eaar8173
Hiawatha Glacier https://en.wikipedia.org/wiki/Hiawatha_Glacier
Sources
Discovering a massive meteorite crater https://www.youtube.com/watch?v=hQ9maLsIcts
Massive crater under Greenland’s ice points to climate-altering impact in the time of humans https://www.youtube.com/watch?v=gg0mAihbm58
Abrupt Climate Change explained by Jim White, 12 Minutes excerpt (@AGU 2014) https://www.youtube.com/watch?v=siWCXOypJh4
International Team, NASA Make Unexpected Discovery Under Greenland Ice https://www.nasa.gov/press-release/international-team-nasa-make-unexpected-discovery-under-greenland-ice
