Space
Skinny wormholes could send messages through time
A wormhole with a long, thin throat could prop itself open long enough to let through pulses of light, offering a way to talk across time
News
Physics
Atomic time lord to battle sneaky high-speed trades
News
Physics
Einstein’s silence: Listening for space-time ripples
Features
Physics
Einstein’s waves would make a cosmic overture
Opinion
60 Seconds
News
Feedback: Stick to the rules, worldwide
Regulars
Health
See half a world and you can’t reason about the past
News
Physics
2013 review: Top ten breakthroughs in physical science
News
Physics
Doctor Who anniversary: 12 ways to become a Time Lord
News
Earth
Primeval planet: What if humans had never existed?
What was the planet like before Homo sapiens, and would it still be that way if we had never gone global? We rewind time, erase our ancestors, and hit play
Features
Physics
Saving time: Physics killed it. Do we need it back?
Features
Physics
Solving the eternal mystery that is time
Opinion
Physics
Entangled toy universe shows time may be an illusion
News
Physics
Most precise clock to watch tiniest ever time dilations
News