Latest update: 18/02/2013
Flying space rocks hit world headlines
In just 24 hours, two incidents involving space debris caused a stir across the planet. In a near-miss, an asteroid the size of a football pitch passed within 30,000 km of the earth. Hours earlier, a meteor exploded over central Russia, smashing windows, setting off car alarms, and injuring 1,200 people. How can scientists predict and prevent worse incidents in years to come?