One has to remember that not all of the Universe can actually be observed and as time advances that less and less of it will be since it is
expanding away from here in all directions beyond the speed of light [ this does not violate general relativity as it applies to the Universe
itself rather than some phenomena within it which would be a violation of g r ] And so there will therefore come a point then at which no
stars will be visible in this local region of space at all. But that will be academic because by then the Earth will have been atomised by the
Sun after it goes red giant expanding as far as Mercurys orbit. The mysterious force causing this expansion is dark energy but that is just
a placeholder until it can be determined what it actually is. One thing however is known about it : it has the properties of repulsive gravity
A MIND IS LIKE A PARACHUTE : IT DOES NOT WORK UNLESS IT IS OPEN
expanding away from here in all directions beyond the speed of light [ this does not violate general relativity as it applies to the Universe
itself rather than some phenomena within it which would be a violation of g r ] And so there will therefore come a point then at which no
stars will be visible in this local region of space at all. But that will be academic because by then the Earth will have been atomised by the
Sun after it goes red giant expanding as far as Mercurys orbit. The mysterious force causing this expansion is dark energy but that is just
a placeholder until it can be determined what it actually is. One thing however is known about it : it has the properties of repulsive gravity
A MIND IS LIKE A PARACHUTE : IT DOES NOT WORK UNLESS IT IS OPEN
A MIND IS LIKE A PARACHUTE : IT DOES NOT WORK UNLESS IT IS OPEN
