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Supernova in Messier 101
A supernova has appeared in the galaxy designed Messier 101. A supernova is essentially a star at the end of its lifetime that has exploded. This particular type of supernova is a type Ia, which is assumed to be due to the destruction of a white dwarf in a binary star system. The supernova can be seen in the image as the brightest "star" within the galaxy; located to the left of the center of the galaxy.
IC_1275_and_NGC_6559.jpg Ha_image_of_Messier_8_in_false_color.jpg Supernova_in_Messier_101_(9_5_2011).jpg Lynds_Dark_Nebula_673_in_the_Constellation_Aquila~2.jpg NGC_6334___The_Cats_Paw_Nebula.jpg
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