Check out our latest paper! Short thread below. How to "fix the BMS frame" of the gravitational-wave predictions co… https://t.co/eQCZgKRWmf
Essentially the opposite of the Big Bang, the Big Crunch is one possible fate of the Universe. If the matter and energy of the Universe are not moving outward quickly enough, gravity could pull the Universe in on itself, collapsing it in a final Big Crunch. It is not yet known whether this will happen to our Universe.