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Astronomers pin down galaxy collision rate

( -- A new analysis of images from the Hubble Space Telescope combined with supercomputer simulations of galaxy collisions has cleared up years of confusion about the rate at which smaller galaxies merge to form ...

dateOct 27, 2011 in Astronomy
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Cassini returns images of battered Saturn Moon

( —Following its last close flyby of Saturn's moon Rhea, NASA's Cassini spacecraft captured these raw, unprocessed images of the battered icy moon. They show an ancient, cratered surface bearing the scars of collisions ...

dateMar 12, 2013 in Space Exploration
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