Satellite swarm could blast away asteroids

Scottish engineers have come up with a new way of dealing with asteroids that threaten the Earth - firing lasers at them from a swarm of small satellites flying in formation.

Physicist plans asteroid deflection system

Lasers could be used to deflect asteroids on potential collision courses with Earth, according to a new study.

Hazardous asteroid on potential collision course with Earth

A dangerously large asteroid could hit the earth in 2182 - and it needs to be deflected by 2080 at the latest, according to a global research team.