Light years Definition and 52 Threads

  1. A

    Mysterious signals from 1000 light years away

    Interesting stuff.
  2. A

    Light Years And Expanding Universe

    How is it that we are able to see galaxies that are billions of light years away considering that we are presumably traveling from the same origin? Would that somehow mean that the distance between the two galaxies was growing at a rate greater than the speed of light? If not, why not? The...
    • Atload
    • Thread
    • Expanding Expanding universe Light Light years Universe Years
    • Replies: 3
    • Forum: Astronomy and Astrophysics