- #1
Rafeek AR
Consider two bodies A &B are moving apart with a velocity V due to the expansion of space. According to an observer in A the body B is moving away and an observer in B feels the body A is moving apart. Can some one answer in which body the time dilates and why?. ( I am specifying once again that the case is movement under expansion of space and not due to ordinary kinematical motion. If you are interested in discussing it even though you don't know the right answer, reply your thoughts.)