Add Yahoo as a preferred source to see more of our stories on Google. The Hubble Space Telescope as seen from the Space Shuttle Discovery in December 1999. In the summer of 1995, Robert Williams, then ...

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

In the summer of 1995, Robert Williams, then director of the Space Telescope Science Institute, which manages the Hubble Space Telescope's research program, was paid two visits by the renowned ...