LECTURE 23, NOVEMBER 23, 2010
LECTURE 23, NOVEMBER 23, 2010. ASTR 101, SECTION 3 INSTRUCTOR, JACK BRANDT jcbrandt@unm.edu. Question 1. a) makes up about 90 percent of the matter in the universe. b) is best detected by the largest optical telescopes. c) makes up about 10 percent of the matter in clusters of galaxies.
612 views • 36 slides