Why black hole evaporation creates an information paradox

Black-hole evaporation creates an information puzzle

Hawking radiation seems to allow a black hole to disappear without returning the information about what originally fell into it. Quantum mechanics says information should not simply vanish. This clash with the usual description of black holes creates the black-hole information paradox.

Jupiter stopped a planet from forming

Jupiter’s gravity kept material between Mars and Jupiter from joining together into a planet. The asteroid belt left there may contain millions of objects at least a kilometer wide, yet all of them together weigh less than one-thousandth as much as Earth.

Viruses are assembled rather than dividing like cells

A virus does not reproduce by splitting into two cells. Inside a host cell, separate viral parts are made and then assembled into new virus particles. Viruses can still inherit mutations and evolve, which helps make the question of whether they are "alive" difficult to answer.

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Why black hole evaporation creates an information paradox

Black-hole evaporation creates an information puzzle

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