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Galileo satellite

Space

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

Europe's costly Galileo satnav network has been branded a vanity project. In an isolationist world, it now seems a wise insurance policy, says Paul Marks

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Analogue alarm clock

Physics

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

Features

face artwork

Physics

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

Features

A crystal

Physics

World’s first time crystals cooked up using new recipe

News

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

Features

Time Machine

Physics

Fast forward: How we learned to love time travel

Culture

Metaphysics 8

Humans

Metaphysics special: Is time an illusion?

Features

Water waves travel back in time to retrace their ripples

Physics

Water waves travel back in time to retrace their ripples

News

A flip clock reads 23:59:60

Space

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

Can't get enough of 2016? You're in luck. A gradual change in the Earth's rotation means we need to add an extra second to keep time in order

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Physics

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

Features

Physics

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

Features

Space

That's odd: Quantum entanglement mangles space and time

Features

Earth

Earth's core is two-and-a-half years younger than its crust

News