Forget the diamond as big as the Ritz. This one’s bigger than planet Earth. Orbiting a star that is visible to the naked eye, astronomers have discovered a planet twice the size of our... Read more
Wispy tendrils of hot dust and gas glow brightly in this ultraviolet image of the Cygnus Loop Nebula, taken by NASA’s Galaxy Evolution Explorer. The nebula lies about 1,500 light-years away,... Read more