Quantcast
Last updated on May 24, 2013 at 14:22 EDT
 Hubble Space Telescope Begins To Provide Accurate Distances
894 of 939

Hubble Space Telescope Begins To Provide Accurate Distances to Galaxies

February 5, 2005
Using NASA's Hubble Space Telescope (HST), an international team of astronomers has taken a major first step in redetermining the expansion rate of the universe. This rate, known as the Hubble Constant, is one of two critical numbers needed for making a precise determination of the size and age of the universe.