Astronomer Richard Walker discovered Saturn’s moon, Epimetheus.
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The final gasps of the Crab Head nebula were observed as it went supernova.
Chinese astronomers reported the brightest supernova known to man.
Dutch astronomer Johannes Fabricius discovered sunspots.
Cosmonaut Alexey Leonov made the first spacewalk when he left his Voskhod 2 spacecraft.
NASA's Discovery Space Shuttle carried the Hubble Space Telescope into orbit.
