The composition of the meteorite is Martian shergottite, or lava from a planet other than the Earth. Weighing over 54 pounds, it is the largest of only 400 known Martian meteorites by far. Sotheby's ...

A rare Mars rock and a young dinosaur skeleton were sold at a New York auction. The Mars rock, found in the Sahara, fetched ...

The largest piece of Mars ever found on Earth was sold for just over $5 million at an auction of rare geological and archaeological objects in New York on Wednesday. But a rare young dinosaur skeleton ...