Apr 18

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Space Tornadoes, Baby Stars, and Ancient Galaxies

After a thousand days in space, the Infrared Array Camera on the Spitzer Space Telescope has sent back thousands of images of stars being born, space "tornadoes" and galaxies at the edge of the universe. To commemorate its voyage, the…

Dec 15

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Asteroid Vesta Revealed

On December 12, Dawn maneuvered into its closest orbit yet around giant asteroid Vesta. The spacecraft is now circling Vesta at an altitude of about 130 miles. Since NASA's spacecraft dawn snapped into orbit around the object, it has been…