Physics
Fast forward: How we learned to love time travel
A classic H. G. Wells story and key mathematics made time travel such a popular idea that it fundamentally changed our thinking, argues James Gleick in Time Travel: A history
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
Physics
You can touch the heart of physics without doing the hard bits
Features
Mind
Physics killed free will and time’s flow. We need them back
Features
Physics
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
Humans
Past, present, future: How do we deal with time?
Culture
Physics
Time might flow backwards as well as forwards from the big bang
In the multiverse, pocket universes could be born with clashing directions of time 鈥� the evolving future of one could happen in the rewinding past of another
News
Physics
Can burping black holes reveal the true fabric of the universe?
Features
Physics
Back to the Future: Does physics of Marty’s time travel add up?
News
Physics
Why do we move forwards in time?
Features
Physics
What came before the big bang?
Features