Big Bang / Lightspeed
I heard an interesting argument yesterday between two people talking about whether the Big Bang actually occurred or not. One of them took the position that the Big Bang couldn't have occurred because assuming every single planet in our solar system started out in one spot and assuming nothing can travel faster than the speed of light, then all stars should already be visible in our night sky and no more should ever show up again.
The reason for this is that after the Big Bang, the section that became Earth shot off in one direction at the speed of light or less and other chunks of rock did the same. As of right now it has been some billions years since the Big Bang and the light from some of the more distant stars are just now reaching us. How is it possible that they are just reaching us? How did those stars travel away from Earth so quickly that their light wasn't even visible to Earth?
I don't know if I'm explaining this too well since in his argument he used a picture. Basically it showed one piece marked Earth heading upwards and one piece marked unknown star heading downwards. He then drew a line of light coming from the unknown star right away and it reaching the Earth particle and said that if Earth was heading straight away from it at light speed, then the light from the unknown star could only ever be out of the sight of Earth by the same distance that the two particles were apart when the Big Bang occurred unless the light got blocked somehow in which case it could be further behind, but it would take a very random act of chance for it to fall behind by billions of years.
Let me know if I'm not explaining this well enough and I'll try again
Anyways, I see his point and it seems to make sense. Unless the Big Bang planet was so large that it would take light millions and millions of years to cross from one side of it to the other, how could any star actually outpace Earth by so much that its light would become billions of years away from us? Especially if Earth isn't moving through the solar system at light speed right now and not many other starts are doing so, how is it possible that all the light from all the stars haven't become visible here on Earth? Also, if the Big Bang is proven true, does that mean that planets may actually be able to go beyond the speed of light or that there are things about time that we don't understand yet?
Hail to the ones who came before us