Scientists recover nova first spotted 600 years ago by Korean astrologers

A new study pinpoints the location of a nova first spotted by Korean astrologers almost 600 years ago that now undergoes smaller-scale ‘dwarf nova’ eruptions. The work supports that idea that novae go through a very long-term life cycle after erupting, fading to obscurity for thousands of years, and then building back up to become full-fledged novae once more.