Mercury is as cold as ice.
Indeed, Mercury, the closest planet to the Sun, possesses a lot of ice — 100 billion to 1 trillion tons — scientists working with NASA’s Messenger spacecraft reported on Thursday.
Sean C. Solomon, the principal investigator for Messenger, said there was enough ice there to encase Washington, D.C., in a frozen block two and a half miles deep.
My first thought: encase Washington in miles-deep ice? — let’s do it!