According to the big bang theory all galaxies are moving away from each other but some articles are published about galaxies collinding, how is this possible?
2007-01-01 09:27:35 · 9 answers · asked by johnandeileen2000 7 in Science & Mathematics ➔ Astronomy & Space
When you hear of galaxies moving away, it is on the larger scale, and is refering to distant galaxies.. This can be attributed to the expansion of the universe. For example, the expansion of the universe does not cause the planets around our sun to move away from the sun. Nor does it cause local neighbors the Milky Way Galaxy and the Andromeda Galaxy (2 million light years from the Milky way) to move apart. The increasing distances occur on the larger scale. The increasing distances occur to galaxies that are alredy 100s of million light-years apart.
gl
2007-01-01 09:55:18 · answer #1 · answered by James O only logical answer D 4 · 2⤊ 0⤋
triteamda and James O are correct. If galaxies are gravitationally bound to each other, they don't steadily move away from each other, for the same reason as the planets in the Solar System stay together. The Milky Way, Andromeda, and all the other galaxies in the Local Group are gravitationally bound together. The Virgo Cluster, 20 million light years away from us, aren't gravitationally bound to us, so the space separating us from them expands fast enough for them to recede.
2007-01-01 18:31:27 · answer #2 · answered by zee_prime 6 · 0⤊ 0⤋
Most of the galaxies are moving away, but some galaxies that are near to each other are coming together becuase of their gravity. Such is the case with our Milky Way galaxy and the nearby spiral galaxy in Andromeda.
2007-01-01 17:33:05 · answer #3 · answered by Anonymous · 2⤊ 0⤋
Not all "trajectories" are perfectly aligned like a bouquet of straws... you can see that in everyday applications as well, like dropping a glass on the floor - the shards will go every which way as some will bump into each other.
Putting that in a galaxy sized scale model is beyond me, but the reason is the same.
2007-01-01 17:38:50 · answer #4 · answered by DNA-Groove 3 · 0⤊ 0⤋
Galaxies exist in groups. The groups are moving away from each other, but within the groups, gravitational pull is strong enough to pull some group members toward each other.
2007-01-01 17:37:59 · answer #5 · answered by ZeedoT 3 · 0⤊ 0⤋
yeah the galaxies are moving apart but some are moving faster away from others and eventually with all scientific theory, theres always at lease one or two collisions, look at air atoms and stuff.
2007-01-01 17:38:24 · answer #6 · answered by eclipsefreak 4 · 0⤊ 0⤋
As a general rule, galaxies are moving farther apart. Their are local abberations where galaxies move toward each other and can merge together or impact each other.
2007-01-01 17:31:23 · answer #7 · answered by Medic_13 5 · 3⤊ 0⤋
How smart Do you think the N.S.A is 200 years ago dirt floors!?
How smart Do you think the N.S.A is 200 years ago dirt floors!
do they not think a higher inetllgnece that made the billions of computational d.n.a that they have found on this planet and yet what they are doing know There are knows knowns and unknows and they have taken all technolgy away 1950 never happen!!!!
www.beyond-science.com www.beyond-science.net
2007-01-01 17:51:40 · answer #8 · answered by zetabinary 1 · 0⤊ 1⤋
Because some of them are talking on the cell phone whild they are in motion!
Ha,Ha,Ha,(just kidding).
2007-01-01 18:13:57 · answer #9 · answered by TIGER 2 · 0⤊ 2⤋