MadSci Network: Astronomy |
Hi, I've asked numerous questions on this website and I hope it's making me understand the universe a little bit more each time. As I understand it, the universe is expanding (accelerating) and as it does so, the space within is being stretched. Does this mean that all matter within this expanding universe is gradually being stretched? If this is the case, will all atoms of matter ultimately be so stretched that they change to pure radiation such as light? If the universe is expanding slower than the speed of light (which I am led to believe), then light photons will be the first objects to reach the edge of the expanded universe/line between the universe and nothingness. What happens to the light at this point? Does it bounce back (where elase can it go) towards the origin of the big bang and will this ultimately be the fate of all radiation? Finally; light has no rest mass only mass due to it’s velocity, does this mean light creates gravity and therefore bends space-time? Thanks for your time Jason Bloomfield
Re: the edge of the universe and after
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