It's mind blowing to imagine that the observable universe is bigger than 90 billion light years, space-time expanding at multiple times the speed of light.

If expansion keeps accelerating, then at some point gravity won't be able to keep the local cluster together and even those galaxies will drift away, then star systems, then planets, then matter itself will be torn apart until atoms and particles and quarks are destroyed. A dark future awaits indeed.

Something in my mind tells me that there must be more to it, the careful balance of universal constants that allow for matter and stars and life to exist surely would not allow it all to be destroyed forever in the end...