Distance to the Next Galaxy

2,540,000 LIGHT YEARS

Andromeda is 2.5 million light years away from us, about 12 Milky Way diameters. Since light takes 2.5 million years to pass between the two galaxies, if some super high—tech Andromeda alien is viewing us with a telescope right now, they’re seeing a bunch of Austrolopithecus walking around being unappealing.

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