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@risk
@risk
By the time the two galaxies collide, the surface of the Earth will have already become far too hot for liquid water to exist, ending all terrestrial life; that is currently estimated to occur in about 0.5 to 1.5 billion years. https://en.wikipedia.org/wiki/Andromeda–Milky_Way_collision
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Cassie Heart
@cassie
It is jarring to consider that the timeline is so near, when relativized by the fact that 0.5 billion years is roughly as long as sharks have been around from today.
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