Tick tock, tick tock, whenever will the clock stop…
After all, Santa can't afford to be late on Christmas Day.
From the days of ancient technology to modern science - find out what happened on this day in the history of science.
In reversing the formation of the universe, the Big Crunch may cause matter and space-time to collapse in on itself.
Timing would be the least of your problems if you fell into a black hole.
Tick tock, tick tock, the man on the moon uses a Universal Time clock.
New method of measuring time could make GPS tracking hundreds of times more accurate than with atomic clocks.
New technology might also potentially help in the search for gravitational waves.
Time flies when you're having fun - maybe that's why we like sleeping so much...
We'll let you know in a jiffy...
In Back to the Future, Marty McFly faces some mind-warping time travel paradoxes. John Gribbin explains the science behind time travel in the movies and whether travelling through time is possible.
Theories of science have ignored time... until now. This idea reveals how it created the Universe - and you, writes Robert Matthews.
Time runs forward, right? Seems so obvious when we can remember the past but not the future, but is it necessarily the case?
Diverse thinkers, from the ancient Greek philosophers through contemporary quantum cosmology and eternal inflation theory, have called time an illusion. Are they right?
Remember: stalactites (with a 'C') come from the ceiling, and stalagmites (with a 'G') come from the ground.
Time is relative on the ISS, but that doesn't stop it being pinned to a time zone back on Earth.
If time flies when you're having fun, does that mean old people are constantly enjoying themselves?
Time travel, telepathy, free energy… science-fiction pipe dreams, right? Not according to scientists who are stretching the laws of physics to the brink. Paul Parsons says to hell with the horizon.
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