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

NWA 16788, the largest piece of Mars to ever make its way to Earth, is set to go up for auction on July 16 and is expected to fetch a price of up to $4 million, according to the auction house. Pieces of Mars found on Earth are exceedingly rare and sell a high price regardless of the size.