r/worldnews - Mars Express beams back images of ice-filled Korolev crater - The 50-mile-wide crater contains 530 cubic miles of water ice, as much as Great Bear Lake in northern Canada, and in the centre of the crater the ice is more than a mile thick.

8Posted by22 minutes ago theguardian.com/scienc...

from Pocket http://bit.ly/2UZQheM