The American Cosmic Background Explorer COBE was launched 1989 Nov. 18 and helped to answer basic questions on the distribution of matter in the universe, on the first appearance of galaxies and on rotation of the universe. It also mapped interstellar and interplanetary dust clouds. (M 41571) _ _.
Discovered on 25-3-1971 in Palomar by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T.