Happy birthday Carl Sagan

A glimpse of what is believed to be the most powerful star ever detected--a dynamo that pumps out 10 million times more energy than the sun and yet can't be seen with the naked eye-- is shown in this image captured by the Hubble Space Telescope. A nebula, produced by violent eruption on the pistol star, appears as a pinkish cloud surrounding the star. (AP Photo/Don F. Figer, UCLA, NASA)

November 09, 2013 4:13 pm  • 
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