Ice Confirmed on Mercury Despite Planet's Solar Proximity
NASA's MESSENGER orbiter has found evidence of pure water hiding near the planet's cool north pole
Small impacts should have buried the surface if the ice were a billion years old, and the MESSENGER researchers believe it might be much younger than that, perhaps 50 million years old.
"The ice deposits we are looking at are not ancient," says Paige.
This article is reproduced with permission from the magazine Nature. The article was first published on November 29, 2012.