Adam Frank

Books by Adam Frank

Adam Frank has written books about:

NPR stories about Adam Frank

American astronomer Edwin Hubble looks through the eyepiece of the 100-inch telescope at the Mount Wilson Observatory in Los Angeles, 1937. In 1929, Hubble proposed that the more distant a galaxy is, the faster it appears to be receding from us, a concept that has become known as Hubble's law. Margaret Bourke-White/Time & Life Pictures/Getty Images hide caption

itoggle caption Margaret Bourke-White/Time & Life Pictures/Getty Images