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James_Cody
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If the galaxies are drifting farther apart at close to light speed then why are we bothering to try to go to other galaxies?
Cyosis said:That really depends on how close the galaxies are to each other. For example the galaxies in our local group are not receding, because gravity is strong enough to keep things together against the expansion. In fact our closest neighbour, Andromeda, is coming right at us. It is only on very large scales that gravity can't keep galaxies together anymore.
Galaxies drifting apart refers to the phenomenon of galaxies moving away from each other at increasing speeds. This is a result of the expansion of the universe.
The expansion of the universe causes galaxies to drift apart. This expansion is driven by dark energy, a mysterious force that is pushing everything in the universe further apart.
Scientists use a unit of measurement called the Hubble constant to determine the rate at which galaxies are drifting apart. This is calculated by measuring the speed at which galaxies are moving away from us and their distance from us.
Yes, all galaxies are drifting apart from each other. However, the rate at which they are drifting apart may differ depending on their distance from each other and the amount of dark energy in their respective regions.
No, galaxies will continue to drift apart as the expansion of the universe is expected to continue. However, the rate at which they are drifting apart may change over time due to various factors such as the amount of dark energy and the gravitational pull of nearby galaxies.