After more than four centuries, new clues emerge pointing to the origins of Kepler's 1604 supernova.More than 400 years after skywatchers -- including astronomer Johannes Kepler -- witnessed the appearance of a spectacular new star in the night sky, astronomers have uncovered important new about the origins of this famous supernova. After a week of observation, Kepler wrote a book about the supernova sighting. [Read more]
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