Astronomers discover coolest objects outside solar system
Wednesday, January 26, 2011 - 07:03
in Astronomy & Space
UK's University of Hertfordshire astronomers have measured the distances to 11 of the coolest objects ever discovered outside our solar system. The 11 cool objects known as brown dwarfs have masses intermediate between stars (more massive) and planets (less massive), and as a result do not burn hydrogen, making them extremely cool.