Physics
Time crystals: A new state of matter that outlasts the universe
A bizarre oscillating material that seems to run on a never-ending loop has apparently been made in the lab, bending the cast-iron laws of thermodynamics
Features
Earth
Changing clocks twice a year is bad for health and energy use
News
Physics
Atomic clocks make best measurement yet of relativity of time
News
Physics
Cosmic uncertainty: Does time go both ways?
Features
Space
Time to make sure Europe’s troubled satnav system really flies
News
Physics
Essence of reality: Hunting the universe’s most basic ingredient
Features
Physics
One time or another: Our best 5 theories of the fourth dimension
Features
Physics
World’s first time crystals cooked up using new recipe
News
Physics
Smallest sliver of time yet measured sees electrons fleeing atom
News
Humans
Fast asleep? Your unconscious is still listening
Can you really set a mental alarm clock by hitting your head on the pillow before you go to bed? Turns out that's not so far from the truth
Features
Physics
Fast forward: How we learned to love time travel
Culture
Humans
Metaphysics special: Is time an illusion?
Features
Physics
Water waves travel back in time to retrace their ripples
News
Physics
Time for more 2016: leap second will be added to year’s end
News