Quote (Azrad @ 30 Oct 2013 15:47)
In fact all matter does what he is saying (opposes expansion), which makes his comment... well troublesome.
This lol
The force of gravity being applied between every masses in the universe, its a direct counter to the expansion rate. No need for a dark or anti matter to weakened the expansion rate of the universe, every mass is doing it very fine.
There was a big question of whether the gravity would ''win'' against the universe expansion rate, which would give a big crunch or w/e you want to call it, or if the universe would just expand forever.
Few posts stated something like gravity pulling back masses together until everything collapses (big crunch), but I thought this theory was pushed aside in the last years. If anything, I heard the universe is believed to expand with an acceleration rate that is constantly getting bigger and bigger, until the cosmological picture of the universe (I mean the one we literally have when we look through a telescope) is completely different as every mass is getting farther and farther away from each other masses until everything is too far for light to even reach us. That means? A completely empty universe is what it would looks like.
I am in no mean an expert in physics, but I my post is related to a Laurence Krauss conference I saw on youtube.