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

Ejected material, mostly breccia (angular rocks cemented by clay), can be found far as 3 to 4 km (1.8 to 2.5 mi) from the largest craters.” ...

The meteorite weighs about 54 lbs. and is approximately 15 inches across at its widest section, per the release. The house also stated that the “incredibly rare discovery” was ejected from the surface ...