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Quora question about intergalactic travel
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There are very real limits to the volume of the galaxy which is within our reach, because of the expansion of the universe. After a certain amount of time, the most distant galaxies will expand so far away from us that they will pass beyond our event horizon; this effect will get closer and closer to Earth until we can only reach the gravitationally-bound galaxies of the Local Group.

Unfortunately I can't remember the exact figures for any of this.

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RE: Quora question about intergalactic travel - by stevebowers - 04-24-2019, 06:25 AM

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