The largest piece of Mars on Earth became the most valuable meteorite ever sold at auction at Sotheby’s annual ”Geek Week,” and a full Ceratosaurus skeleton fetched $30 million. Next up for bidding: an Apple computer hand-built by Steve Jobs.

A 54-pound meteorite from Mars is expected to fetch up to $4 million when it goes up for auction later this month at Sotheby's.

Two meteorites found in the Sahara in 2023 might be from Mercury, a study suggests, but doubts remain due to how little is known about the planet closest to the sun.

A 54-pound (25-kilogramme) rock. Estimated auction price: $2 million to $4 million. Why so expensive? It’s the largest piece of Mars ever found on Earth. Sotheby’s in New York will be auctioning what’s known as NWA 16788 Wednesday as part of a natural history-themed sale that also includes a juvenile Ceratosaurus