Will the universe become a black hole?
After 1040 years, black holes will dominate the universe. They will slowly evaporate via Hawking radiation. A black hole with a mass of around 1 M ☉ will vanish in around 2×1066 years.
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Is the universe flat? In a universe with zero curvature, the local geometry is flat. The most obvious global structure is that of E...
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How old is our world? The age of the Earth is estimated to be 4.54 ± 0.05 billion years (4.54 × 10 9 years ± 1%). This age may rep...
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