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A thrown object (a galaxy, for instance) at the edge of the universe (ie, without anything in front of it to pull it) should not accelerate. Shouldn't the huge mass behind it (mass closer to the center of the Big Bang) slow it down with gravity? Is it the expansion of the universe itself that is creating distance/speed/acceleration?

2006-12-06 03:21:53 · 4 answers · asked by AJSOLIVEIRA 2 in Science & Mathematics Astronomy & Space

4 answers

Research Dark Matter and Dark Energy. These are the front running theories behind the acceleration of the expansion. Some scientists believe that the problem is our understanding of the law of gravity.

2006-12-06 03:33:02 · answer #1 · answered by johngrobmyer 5 · 1 0

If I remember correctly I think it goes something like this, The big bang occured everything expanded, formed, and developed at a fast rate. As everything got bigger and more exspansive things slowed down. Now everything is slowly moving back together. Universes are getting closer, a reverse big bang. It all comes together, then BANG, it all happens again. Thats one theory out there.

2006-12-06 12:17:33 · answer #2 · answered by DolfinSong 2 · 0 0

Yes, the expansion of the universe is what's driving the growth of the structure. Recent evidence seems to support that the expansion rate is increasing.

2006-12-06 11:25:03 · answer #3 · answered by Gene 7 · 0 0

Astronomers are theorizing that dark energy is opposing gravity. Perhaps this energy may be responsible for the red shift in outlying galaxies.

2006-12-06 11:38:46 · answer #4 · answered by quaver 4 · 0 0

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