After more than five years, Spitzer is completing its original assignment to study the cool universe and is now moving on to a new "warm" career.
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This animation shows a computer simulation of the planet HD 80606b from an observer located at a point in space lying between the Earth and the HD 80606 system.
In this animation, a seething cauldron of light appears to bubble and ooze around the remains of a giant star that astronomers have been watching tear itself apart for the last 300 years.
Luke Skywalker gazed upon a double sunset in "Star Wars." NASA scientists now believe the universe could be full of planets with sunsets like these.
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NASA's Spitzer Space Telescope has uncovered clues about the atmospheres of two planets beyond our solar system.
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NASA's Spitzer Space Telescope is a galactic ghost buster, spotting hidden massive stars and other monsters lurking in our galaxy.
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Ever wonder how astronomers get those amazing pictures from space telescopes?
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This animation shows the Andromeda galaxy, first as seen in visible light by the National Optical Astronomy Observatory, then as seen in infrared by NASA's Spitzer Space Telescope.
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NASA's Spitzer Space Telescope's image of an area dubbed "Mountains of Creation."
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An enormous light echo etched in the sky by a fitful dead star was spotted by the infrared eyes of NASA's Spitzer Space Telescope.
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