SciTech July 25, 2008, 8:45

Asteroid heading our way

Astronomers are battling to work out the trajectory of an asteroid that will cause havoc if it hits the Earth in 2036. Called Apophis, the giant meteor is hurtling through space at 10km per second. Scientists are warning that an impact would be far more devastating than the atomic bomb dropped on Hiroshima at the end of WW2.