Supernova blast provides clues to age of binary star system

Data from NASA's Chandra X-ray Observatory has revealed faint remnants of a supernova explosion and helped researchers determine Circinus X-1 -- an X-ray binary -- is the youngest of this class of astronomical objects found to date.

Wide binary stars may have started out as triplets

The old adage, ‘two’s company three's a crowd’ could also be true for wide binary star systems.