Cosmic sprinklers explained: Odd pair of aging stars sculpt spectacular shape of planetary nebula
Thursday, November 8, 2012 - 15:01
in Astronomy & Space
Astronomers have discovered a pair of stars orbiting each other at the center of one of the most remarkable examples of a planetary nebula. The new result confirms a long-debated theory about what controls the spectacular and symmetric appearance of the material flung out into space.