Physics
How the most precise clock ever could change our view of the cosmos
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Physics
Time travel sci-fi novel is a rip-roaringly good thought experiment
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Physics
You can turn any random sequence of events into a clock
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Mathematics
Is the universe a game?
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Space
Time ticks faster on the moon by 57 microseconds per Earth day
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Physics
How physics is helping us to explain why time always moves forwards
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Physics
Are space and time illusions? The answer could lie in black holes
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Physics
What "naked" singularities are revealing about quantum space-time
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Physics
How to wrap your mind around the real multiverse
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Physics
How materials that rewind light can test physics' most extreme ideas
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Physics
Time may be an illusion created by quantum entanglement
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Physics
Quantum time travel: The experiment to 'send a particle into the past'
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