The Week in Pictures: March 9–15, 2013
In the past seven days, astronomers found a pair of stars that has taken over the title for the third-closed star system to the Sun, Curiosity's Mars drilling sample revealed key chemical ingredients for life, scientists discovered an extremely rare triple quasar system, and more.
Closest star system found in a century
Both stars in the new binary system are brown dwarfs, resembling giant planets like Jupiter more than bright stars like the Sun. Learn more »