Recent content by MassNerd

  1. MassNerd

    Graduate Can two observers receding at 0.51c from a central observer see each other?

    [Mentor's Note: Post moved into its own thread from this one] Hello, I have another newbie relativity question which is somewhat related to this topic. Here it is: There are 3 observers on 3 different planets each in a different galaxy. Observer 1 stands on the north pole of their planet...
See more