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An image of the disk of material around the star Fomalhaut, with its planet seen in the insert (taken at two different dates). CfA astronomers doing theoretical modeling of watery super-Earths have found that collisions between such planets will not increase the amount of water on either one.
Credit: Hubble Space Telescope, NASA and ESA
Low Resolution Image (jpg)
Credit: Hubble Space Telescope, NASA and ESA
Low Resolution Image (jpg)
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