The missing piece to Einstein’s puzzle

We might make it beyond Mars—but only if we can build radiation shields

The limits of knowledge

An extract from a new tale of spooks and scientists

Christopher Nolan's film Interstellar makes an admirable attempt to be scientifically authentic, but science fact will always trump science fiction

How a new experiment could help us discover the secrets of the Big Bang

Comets could hold the secret of how life began on Earth

The winner of this year's Nobel Prize for Physics waited 48 years for the confirmation of his theory, but in some ways he grew to dread the moment of discovery

In search of lost time

Chasing the total eclipse across the Pacific Ocean