A 54-pound (25-kilogram) rock. Estimated auction price: $2 million to $4 million. Why so expensive? It's the largest piece of ...

The red, brown and gray hunk is about 70% larger than the next largest piece of Mars found on Earth and represents nearly 7% ...

"Gone with the Wind" star Ann Rutherford's former Beverly Hills estate, designed by Paul R. Williams in 1938, hits the market for $42 million featuring five bedrooms and Hollywood history.

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

The largest fragment of Mars ever discovered on Earth, a 54-pound meteorite named NWA 16788, is set for auction at Sotheby's in New York.

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

After the iconic bag sold for a record-breaking amount at auction, fans began speculating that Kardashian may be the highest bidder.

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, ...