• Entry
  • Reader's guide
  • Entries A-Z
  • Subject index

In 1926 the American astronomer Edwin P. Hubble discovered that all distant galaxies are rapidly moving away from us. This pioneering observation was (and still is) broadly interpreted as a global expansion of the universe. Hubble's discovery, together with the cosmological ...

    • Loading...
    locked icon

    Sign in to access this content

    Get a 30 day FREE TRIAL

    • Watch videos from a variety of sources bringing classroom topics to life
    • Read modern, diverse business cases
    • Explore hundreds of books and reference titles