SPACE PHOTOS THIS WEEK: Galaxy Clash, Blue Medusa, More

SPACE PHOTOS THIS WEEK: Galaxy Clash, Blue Medusa, More
SPACE PHOTOS THIS WEEK: Galaxy Clash, Blue Medusa, More
SPACE PHOTOS THIS WEEK: Galaxy Clash, Blue Medusa, More
SPACE PHOTOS THIS WEEK: Galaxy Clash, Blue Medusa, More
SPACE PHOTOS THIS WEEK: Galaxy Clash, Blue Medusa, More
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SPACE PHOTOS THIS WEEK: Galaxy Clash, Blue Medusa, More
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March 12, 2009--About five billion years from now, our sun will look like the Cat's Eye nebula (above), named for its center's distinctive feline shape.

The formation is a planetary nebula—the glowing remnants of dust and gas generated by dying stars—and was captured by NASA's Spitzer Space Telescope.

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—Image courtesy NASA/JPL-Caltech/J. Hora (Harvard-Smithsonian CfA)
 

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