Follow
Our universe is expanding and our Hubble Space Telescope has just made the most precise measurements of the expansion rate since it was first calculated nearly a century ago. #CoSoScience http://go.nasa.gov/2CCv9AU
Our universe is expanding and our Hubble Space Telescope has just made the most precise measurements of the expansion rate since it was first calculated nearly a century ago. #CoSoScience http://go.nasa.gov/2CCv9AU