Physics
Quantum watch is a ‘completely new way of measuring time’
A quantum stopwatch made of lasers and helium atoms can measure the time that has passed with complete accuracy, without counting seconds like other clocks
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Physics
Time loops may not be forbidden by physics after all
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Physics
Contemplating the mysteries of the fourth dimension is time well spent
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Mind
Why does time fly or drag? How emotions warp our temporal perceptions
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Life
How do we make the most of our time? The power of confronting death
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Earth
How long does evolution take? It happens on two different timescales
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Physics
Jun Ye interview: What use is the world’s most accurate clock?
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Mind
Can we live without time? Not if we value a solid sense of self
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Physics
Will we ever unite physics? Clocks in superposition could offer clues
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Physics
Will time ever end? The answer lies in the death throes of the cosmos
The universe might meet its end in a big freeze, a big crunch, or a big rip. But whether time ends with the demise of the cosmos depends on whether it is even real after all
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Physics
What is time? The mysterious essence of the fourth dimension
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Physics
Could we ever go back in time? Relativity does not rule it out
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Mind
How do we sense time? The brain cells that order our memories
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Space
Gaia telescope鈥檚 new map of the Milky Way will let us rewind time
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