It is one of humanity's biggest fears: an asteroid hurtling towards the Earth. But today, Nasa is set to hold a groundbreaking test to stop such asteroids in their tracks. Could a spacecraft be our saviour?
Nasa’s asteroid-crashing mission
It is one of humanity's biggest fears: an asteroid hurtling towards the Earth. But today, Nasa is set to hold a groundbreaking test to stop such asteroids in their tracks. Could a spacecraft be our saviour?