Questions for a Cosmologist
A coworker and I were having a discussion about general relativity, and wandered down a tangent in which our understandings of the universe differed. We both agree that each others’ explanations are plausible without any hard data against which to test predictions (and we didn’t have real data to back up any of our claims). Does anyone want to weigh in on this debate? Have cosmologists considered this idea and come to a conclusion one way or the other?
Is space itself expanding, or are the things in space just moving away from each other? →