Space
Empty universe: Cosmology in the year 100 billion
The skies of the far future will be dark and lonely, but our descendants will have one telltale clue to help them decipher the cosmos, says Marcus Chown
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The skies of the far future will be dark and lonely, but our descendants will have one telltale clue to help them decipher the cosmos, says Marcus Chown
The universe's extreme of heat lies not in the here and now, but the way back when