2 August 2022
Geologist Ludovic Ferrière travels the world in search of undiscovered impact craters left behind by asteroids and comets striking Earth. He tells us how he finds them
22 January 2020
When asteroid Armageddon is upon us, we can't just call Bruce Willis. Meet the people who really do watch the skies – and make detailed plans for our survival
31 January 2018
First seen in October 2017, the space rock 'Oumuamua looks like a skyscraper tumbling through space – and challenges our ideas of how planetary systems form
