A rock from Mars that travelled tens if not hundreds of millions of miles before improbably landing on our planet's door step has seemingly found a fitting, final resting place: the private collection of some secretive plutocrat,

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

A chunk of the Martian surface that made an unlikely voyage to Earth will be available to the highest bidder at Sotheby's auction in New York.