Scientists recover nova first spotted 600 years ago by Korean astrologers

On a cold March night in Seoul almost 600 years ago, Korean astrologers spotted a bright new star in the tail of the constellation Scorpius. It was seen for just 14 days before fading from view. From these ancient records, modern astronomers determined that what the Royal Imperial Astrologers saw was a nova explosion, but they had been unable to find the binary star system that caused it--until now. A new study published today by the journal Nature pinpoints the location of the old nova, which n...