NASA Takes You Through a Real-Life 'Cosmos'

Image: An ultraviolet view of the Andromeda Galaxy.
NASA's Swift satellite captured this high-resolution, ultraviolet view of the Andromeda Galaxy, also known as M31. The mosaic of M31 merges 330 individual images taken by Swift's Ultraviolet/Optical Telescope, spanning an area 200,000 light-years wide.Stefan Immler (GSFC) / SWIFT / NASA

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