The universe's expansion may actually have started to slow rather than accelerating at an ever-increasing rate as previously thought, a new study suggests.
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Not necessarily. We don’t really understand gravitational forces the way we understand the other four fundamental interactions.
There is no limit to the distance that gravity has an effect, but gravitational attraction propagates at the speed of light and at large enough distances, the rate of expansion is greater than the speed of light.
The first one
Not necessarily. We don’t really understand gravitational forces the way we understand the other four fundamental interactions.
There is no limit to the distance that gravity has an effect, but gravitational attraction propagates at the speed of light and at large enough distances, the rate of expansion is greater than the speed of light.