Mercury may have gotten much of its polar ice within a single Mercurian day following a massive asteroid impact, a new study suggests.

Where did Mercury get its water ice? Maybe from a slow asteroid impact in a single Mercurian day

Source: space
Source Link: https://www.space.com/astronomy/mercury/where-did-mercury-get-its-water-ice-maybe-from-a-single-slow-asteroid-impact-in-one-mercurian-day