Recent content by sicarius

I may be wrong here, but I think that it is more like they have not found any math that disallows this, not so much as they have mathematically proved it.

Thank you. The speed of light is a measure of movement through space, and that speed cannot be breached. Expanding space is not "moving through space" and does not hit the same limitations.

Actually, yes and no. You are right about the arrival times, but the astronaut would not announce that he has traveled 50x the speed of light. He would announce that he has traveled 300 trillion miles in one year. There is a difference. To the traveler, the passage of time slows down to...

Yes an infinite universe implies infinite energy. If the universe was empty execpt for those two obejects then yes they theoretically would fall towards at speeds approaching the speed of light, and yes they would never actually reach each other. It is also possible that gravitons from one...

Ok. You are not grasping the full meaning of time being relative. Let's forget for the moment that B's position is impossible (not moving relative to what? The earth, which would have to have it following our orbit? The black hole? Both, which means that the black hole and point b have to be...

Actually the moon is moving away from the Earth and will eventually break free (unless we are swallowed up by the sun becoming a red giant first).

Infinity is a funny thing. For example, let's say you have an infinite amount of water. That means for every 1 oxygen atom you have 2 hydrogen atoms. While you obviosly have 2x as many hydrogen atoms, you at the same time have equal amounts, since there are infinite amounts of both hydrogen...

"So if space itself is what is expanding, wouldn't it still be congruous with the evidence that this very expansion of space is happening much faster than the speed of light?" Assuming the expansion is uniform across the universe, then nearby objects would be moving away from you slower than...

I am not claiming to understand all the math, but it is based on mass, orbital period and distance from the star.