Several meteorites found in Antarctica are believed to have come from Mars, including the famous ALH84001 meteorite

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Several meteorites found in Antarctica are believed to have come from Mars, including the famous ALH84001 meteorite that was once thought to contain fossils of ancient life on Mars. Meteorites from Mars are thought to get to Earth by being blasted off the Martian surface when a large object (such as an asteroid or a comet) crashes into the planet. What speed must a rock have to escape Mars?

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Physics

ISBN: 978-0321976444

5th edition

Authors: James S. Walker

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