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answers:
poornakumar b say: Correction: They are moving away from each other & not from universe centre as there is no 'centre' (except in the past which is not a point in 3 D Space).
Their speed increases with the distance.
No way they can slow down.
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Tom S say: Speed is relative and space has no center.
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YKhan say: You will get a lot of responses saying that the galaxies themselves aren't actually moving away from us at faster than the speed of light, it is the region of space that is moving away from our region of space at faster than light. Einstein's rule about not exceeding light speed applies to things within spacetime moving through spacetime, not about spacetime itself moving relative to itself.
So as for slowing down, they will never slow down, they will keep receding away at ever faster than light speeds.
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ignoramus say: Your assumption is false.
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Brigalow Bloke say: Assume makes anass out of u and me.
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Poseidon say: Hi St Lusakan,
It appears to be true that parts of the galaxy are expanding at more than the speed of light but we must assume that eventually it will slow down, stop and actually start contracting, This of course will take billions, trillions or even quadrillions of years. This is the view of many scientists.
It is the 'space stuff' we can't see, dark matter, which is the culprit.
Take our galaxy, the Milky Way and the Andromeda Galaxy both are heading on a collision course and in approximately 3 billion years they will collide and neither will be the same again.
Poseidon
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Mutt say: The gravity of all the other objects in the Universe should cause it to slow down. But it doesn't, which is where the thought of "Dark Energy" comes form - It's something that is causing them to expand at an accelerated rate, but no one has yet discovered what that "something" is.
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