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

In the first moments of the universe, matter overpowered antimatter, its mirror opposite. We may soon find out why.

We now know why the universe has structure. What next?