Added: Nov 20, 2008
From: Kowch737
Duration: 1:31
Chandra X-ray ObservatoryAbell 1689 is a massive cluster of galaxies located about 2.3 billion light-years away.
Channel: Tech
Tags: galaxy observatory satellite universe x-rays
Rating: 4.50 (2 ratings) Views: 7' favoriteCount='2 Comments: 0
