Recent content by catgoesmeow

  1. C

    Spaceship trip to distant stars with relativistic speed

    Homework Statement Star A and B are at rest relative to Earth. Star A is 27 ly from Earth, and as viewed from Earth, Star B is located beyond (behind) star A. (a) Star A is 27 ly from Earth. A spaceship makes a trip from Earth to star A at a speed such that the trip from Earth to Star A takes...