2 ms·

I thought the universe is too big as to contract again?

• mabbo 6y ago
  The results don't necessarily tell us about the future- but that there may have been a bounce in the past. As far as being too big, that's not quite it. Everything is moving away from each other because of the big bang, but astronomers realized that hey, gravity should be slowing that down. So they tried to measure the deceleration of the expansion of the universe. Instead they found it's accelerating. There's a lot of theories as to why, but right now it's just called "Dark Energy" because no one really has a full understanding of it. Space itself seems to be stretching out, becoming larger. Will the acceleration of expansion continue forever? Maybe someday it will slow and reverse? No one is sure yet.