Huge Asteroid Apophis Flies

Planetary defense specialists and asteroid scientists are already looking forward to a 2029 close approach of a relatively large asteroid called Apophis.

Although scientists are positive Apophis won't hit Earth in 2029, they can't yet rule out possible collisions many decades in the future, and there are plenty of other large space rocks orbiting the sun in Earth's neighborhood. Experts in planetary defense track these objects and prepare techniques that could divert any that do pose a threat.