A large piece of Mars that is on Earth has been sold at auction in New York for a price reported to be $5.3 million by most outlets, although one report indicates a lower sale price of $4.3 million. The sale is described as a record and the piece is said to be the largest known or biggest piece of Mars on the planet. The exact details of the sale may vary, but it is clear that a significant piece of Mars was sold at auction.