Astronomers Reveal Galaxies' Most Elusive Secrets
Thursday, November 17, 2011 - 15:50
in Astronomy & Space
A new, high-precision spectrograph orbiting Earth aboard the Hubble Space Telescope is sending such rich data to Earth, some astronomers feel they've crossed the final frontier in understanding galaxy evolution, the birthplaces of stars. Until now, most of the mass in a galaxy was undetectable.