Among items going up for auction at Sotheby's in New York is a 54-pound rock that the auction house calls the largest piece of Mars ever found on Earth.

The meteorite weighs over 25 kg and is 15 inches wide and is about 70 per cent bigger than any other piece of Mars ever found on Earth.

Sotheby's is putting some rare items up for auction, including what it calls the largest piece of Mars ever found on Earth.

Grande tête mince” — a bronze sculpture by Alberto Giacometti — failed to meet expectations at a recent Sotheby’s auction.

The very first auction that Christie’s conducted, back in London in 1766, was a single-owner collection sale of objects only identified as “the property of a Noble Personage (Deceas’d).” Presumably, ...