towards something?
2007-02-17 08:19:25 · 11 answers · asked by ? 2 in Science & Mathematics ➔ Astronomy & Space
Several theories exist that it's the inertia left over from the energy of the big bang. One very interesting fact found is that the farther away a distant galaxy, the faster it's moving, which could indicate forces pulling, but we just don't know.
2007-02-17 08:23:26 · answer #1 · answered by rock d 2 · 0⤊ 0⤋
There is a lot of evidence that there is some kind of an "anti gravity" repulsive force that is pushing the galaxies away from each other. This is the dark energy that I'm sure you've heard a lot about. The rate at which the universe is actually increasing over time, which wouldn't fit with the idea that the universe is expanding due to the outward motion of the particles after the big bang. If there were only an attractive force, then gravity would slow down the rate of expansion over time, but that's not what is observed. This dark energy actually accelerates the rate of expansion. Our theory of gravity could be entirely wrong. It's fascinating, in my opinion.
2007-02-17 16:28:37 · answer #2 · answered by Chris S 3 · 0⤊ 0⤋
The galaxies are moving apart because the space between them is expanding, rather than then rushing into any void. Until a few years ago it was thought that this movement was indeed powered by inertia from the initial "big bang". However, more recently it is thought that dark energy is the main driving force because the rate of expansion appears to be increasing (if it was left over momentum, the rate would be subject to braking from gravitational attraction between the matter in the Universe). Look up dark energy in Wikipedia if you want a bit more detailed info.
2007-02-17 16:25:59 · answer #3 · answered by davidbgreensmith 4 · 0⤊ 0⤋
An object "falls" because it is attracted to another (usually larger) object by the force of gravity. Thus an apple falls to the earth because of the attraction of the earths gravily. You might also say that the moon is "falling" toward the earth, but doesn't get there because its centrifugal momentum (velocity away) counter balances that attraction.
According to the widely accepted "big band" theory galaxies are moving away from each other because of the momentum powered by that intial "bang". If the path of a star or galaxy should approach another star or galaxy, gravitation could exert an attraction so that you could say they were "falling" toward each other.
2007-02-17 16:34:22 · answer #4 · answered by p v 4 · 0⤊ 0⤋
Both is going to happen cuz the big bang is from the sun. When it "dies" then no gravity is going to hold us up so were abviously gonna die from to much heat then the earth will go through falling in a neverending pit of space. BOO hoo!
2007-02-17 16:49:51 · answer #5 · answered by Emerill 2 · 0⤊ 0⤋
Falling?!? If we were falling, then the big bang would be at the top?!? I think we're in a bubble...like a piece of bubble gum that's slowly expanding and when it pops...it's all over man...until they blow up another bubble.
2007-02-17 16:28:55 · answer #6 · answered by steve h 2 · 0⤊ 0⤋
the THEORY is that the inertia from the big bang is the reason but it is not a repeatable experiment so we will never absolutely know
2007-02-17 16:25:35 · answer #7 · answered by Anonymous · 0⤊ 0⤋
the solar systems are really the planets the orbit around the sun.
2007-02-17 16:22:20 · answer #8 · answered by Anonymous · 0⤊ 0⤋
expanding even at a much faster rate into the unknown
2007-02-17 16:36:55 · answer #9 · answered by blinkky winkky 5 · 0⤊ 0⤋
The big band thing. I pity the fool who contradicts me!
2007-02-17 16:22:00 · answer #10 · answered by ? 3 · 1⤊ 0⤋