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Physics

Cosmic uncertainty: Does time go both ways?

Might the dead return to life and live backwards to birth, Benjamin Button style? A closer look at quantum theory reveals a surprising answer

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Galileo satellite

Space

Time to make sure Europe's troubled satnav system really flies

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Physics

Essence of reality: Hunting the universe's most basic ingredient

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Physics

One time or another: Our best 5 theories of the fourth dimension

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A crystal

Physics

World’s first time crystals cooked up using new recipe

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Visualisation of electron leaving atom

Physics

Smallest sliver of time yet measured sees electrons fleeing atom

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Humans

Fast asleep? Your unconscious is still listening

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Time Machine

Physics

Fast forward: How we learned to love time travel

Culture

Metaphysics 8

Humans

Metaphysics special: Is time an illusion?

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Water waves travel back in time to retrace their ripples

Physics

Water waves travel back in time to retrace their ripples

Researchers have discovered that jolting waves can send them rippling back to where they came from like a movie in reverse

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Space

Time for more 2016: leap second will be added to year's end

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Physics

You can touch the heart of physics without doing the hard bits

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Physics

Physics killed free will and time's flow. We need them back

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Space

That's odd: Quantum entanglement mangles space and time

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