A star with a comet’s tail

Mira (pronounced “my-rah”) is a red giant star over 400 light-years away in the constellation of Cetus. NASA’s Galaxy Evolution Explorer probe recently took the amazing ultraviolet picture below:


Over the last 30,000 years Mira has been throwing off layers of stellar material as it runs out of fuel, creating a tail thirteen light-years long. That’s a tail more than 76,000,000,000,000 miles long!

NASA Press Release

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