The largest piece of Mars ever discovered on Earth was sold for more than $5 million at an auction of rare geological and archaeological objects in New York. At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.

The largest Mars rock ever found on Earth, NWA 16788, just sold for $5.3 million at a Sotheby's auction to an unnamed bidder.

A 54-pound meteorite from Mars sold for more than $5 million when it went up for auction on Wednesday at Sotheby's.