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 ...

A rare 54-pound Martian meteorite is set to go under the hammer at Sotheby's in New York, with an estimated value between $2 ...

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, ...