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Author Topic:   The accelerating expanding universe
Hoof Hearted
Junior Member (Idle past 5129 days)
Posts: 24
From: Chorley, Lancs, UK
Joined: 03-20-2007


Message 1 of 2 (550155)
03-13-2010 4:40 AM


I am finding it difficult to comprehend the concept that the expansion of the universe is accelerating. If the expansion is accelerating today, then presumably this acceleration has been taking place for billions of years.
If the divergance of a given galaxy is increasing at a rate of only 1 mile per hour/year, then that galaxy would be travelling away from us at the speed of light within only 700 million years. Clearly this is not happening, so the rate acceleration must be very small indeed. Is it really possible to measure such a microscopic rate of acceleration by observing such a distant object?
If any acceleration is taking place, I would expect every other galaxy to be so far away by now that we could not possibly see them. Or....
If the llight could reach us, those other galaxies would be diverging at such a colossal speed that I would have thought that the light reaching us from them would no longer be within the visible spectrum.
Edited by Hoof Hearted, : No reason given.

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Message 2 of 2 (550163)
03-13-2010 7:58 AM


Thread Copied to Big Bang and Cosmology Forum
Thread copied to the The accelerating expanding universe thread in the Big Bang and Cosmology forum, this copy of the thread has been closed.

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