July 23 is the birthday of the famous astronomer Vera Rubin, who helped us realize that the universe that is possible is only a small part of the real universe. You may have heard of Dark Matter; Especially since most...
Bagnold dunes are a 35 km long dark gray mud / sand dune in the Gail Crater on Mars. They are named after Ralph Alger Bagnold, one of the first explorers to explore the physics behind the sand dunes across...
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