Some accurate insights: The expanding universe is a complicated place. During inflation the universe expanded faster than light, but thats something that actually happens all the time, its happening right now. This doesnt violate Einsteins theory of relativity since nothing is moving through space faster than light, its just that space itself is expanding such that far away objects are receding rapidly from each other. Common sense would dictate that objects moving away from us faster than light should be invisible, but they arent. This is because light can travel from regions of space which are superluminal relative to us into regions that are subluminal. So our observable universe is bigger than our Hubble sphere - its limited by the particle horizon, the distance light could travel to us since the beginning of time as we know it. https://youtube/watch?v=XBr4GkRnY04
Posted on: Tue, 23 Sep 2014 21:47:29 +0000
Trending Topics
Recently Viewed Topics
© 2015