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Sotheby's is putting some rare items up for auction, including what it calls the largest piece of Mars ever found on Earth ...
A 54-pound (25-kilogram) 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 ...
A massive Martian meteorite is set to be auctioned at Sotheby's in New York. The meteorite, named NWA 16788, weighs 54 pounds ...
The ratio of lead and potassium-argon isotopes in this block of mineral components including olivine, pyroxene, feldspar and glass gives it an age of roughly 4.57 billion years, which makes it ...