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| | | Astronomers find 'ghost dunes' on Mars | | Robot orbiters circling Mars have acquired images of ghost dunes. They're pits where, scientists believe, tall crescent-shaped sand dunes once existed on this red desert world. | | | Mars, Mars, Mars! | | | The best time to see Mars since 2003 is now, and in the coming weeks. | | | Listen as Saturn and its moon interact | | | Spacecraft observations reveal plasma waves moving from Saturn to its rings and its moon Enceladus. Researchers converted a recording of the waves into cosmic whoosh that you'll enjoy. | | | | | |
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|  | | Mars, Mars, Mars! | Kym Baldwin captured this shot Saturday night. Mars is the bright object on the left. Kym wrote: "We spent a an evening on the beach in Cape May, New Jersey, shooting the Milky Way. It’s humbling being able to see something so great dance over our heads." | | | | | |
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 | | Tonight … See the constellation Scutum the Shield | Scutum has only has 4 stars that make up the constellation outline, but it's noticeable in a dark sky because a rich region of the Milky Way is behind it. | | |
