Martian meteorite that is the largest known piece of Mars found on Earth has sold for $5.3 million at Sotheby's, setting a new auction record for a meteorite.

The odds of this getting from there to here are astronomically small, Sotheby’s Cassandra Hatton said, as record-breaking Martian meteorite NWA 16788 is set to sell under the hammer in New York. Weighing in at 54 pounds,

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.