Windows to the Universe

This is the Whirlpool Galaxy M51 and was one of Messier's original discoveries. He discovered it on October 13, 1773, when observing a comet.
NASA

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This is the Whirlpool Galaxy M51 and was one of Messier's original discoveries. He discovered it on October 13, 1773, when observing a comet. NASA

This is the Whirlpool Galaxy M51 and was one of Messier's original discoveries. He discovered it on October 13, 1773, when observing a comet. NASA

This is the Whirlpool Galaxy M51 and was one of Messier's original discoveries. He discovered it on October 13, 1773, when observing a comet. NASA

This is the Whirlpool Galaxy M51 and was one of Messier's original discoveries. He discovered it on October 13, 1773, when observing a comet.
NASA

This is the Whirlpool Galaxy M51 and was one of Messier's original discoveries. He discovered it on October 13, 1773, when observing a comet.
NASA

This is the Whirlpool Galaxy M51 and was one of Messier's original discoveries. He discovered it on October 13, 1773, when observing a comet.
NASA