NASA Unveils Solar System Atlas

NASA has released a new atlas of more than 560 million stars, galaxies and asteroids, many never seen before.The more than 18,000 images were taken by the Wide-field Survey Explorer (WISE), NASA's infrared space telescope.With WISE, scientists discovered Y Dwarf stars, the dimmest stars of the brown dwarf family. By solar standards, they're exceptionally cold: One discovered in 2011 had a temperature of only 80 degrees Fahrenheit. By comparison, our sun has a scalding surface temperature of about 10,000 degrees Fahrenheit.

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