white dwarf

  • What is a supernova — or why stars explode, creating the universe as we know it December 23, 2015 at 8:12 am

    Supernovae are events so violent that, for a short time, a single star can outshine a galaxy of billions. But just what are they, really?

  • Twin stars headed for a rare ‘Super-Chandra’ supernova event February 11, 2015 at 9:11 am

    An incredible new astronomical find lets astronomers watch as two stars spiral inward toward one of the most violent events in the universe.

