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Gravitational waves spotted by LIGO reveal two black holes, 140 and 100 times the mass of the sun, merged to become a 225 solar mass behemoth.
The more scientists study the Red Planet, the more they find unusual objects and patterns scattered across Mars' surface. As ...
The odds of this getting from there to here are astronomically small, Sotheby’s Cassandra Hatton said, as record-breaking ...
The whopping 25-kilogram Martian rock will be sold at a special natural history-themed auction at Sotheby's in New York this ...
Sotheby's is putting some rare items up for auction, including what it calls the largest piece of Mars ever found on Earth.