Resolving the black hole firewall paradox—by calculating what a real astronaut would compute at the black hole's edge.

Defining a ‘quantum clock’ and a 'quantum ruler' could help those attempting to unify physics—and solve the mystery of vanishing time.

Calculating the odds that intelligent observers arise in parallel universes—and working out what they might see.

A bench-top experiment could test the notion that gravity breaks delicate quantum superpositions.

Accounting for quantum fuzziness could help us measure space and time—and the cosmos—more accurately.

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