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The Alien Planets of Star HR 8799 (Photos)

Wild Solar System Spotted Around Distant Star

NASA/JPL-Caltech/Univ. of Ariz.

NASA's Spitzer Space Telescope captured this infrared image of a giant halo of very fine dust around the young star HR 8799, located 129 light-years away in the constellation Pegasus. The brightest parts of this dust cloud (yellow-white) likely come from the outer cold disk similar to our own Kuiper belt (beyond Neptune's orbit). The huge extended dust halo is seen as orange-red.

New Method Could Photograph Earth-Like Planets

NASA/JPL-Caltech/Palomar Observatory

The three planets of the HR 8799 system. The planets, though to be gas giants more massive than Jupiter, were first imaged in 2008, and again detected with the new vortex coronagraph.

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