In about five years’ time, a potentially hazardous asteroid will swing by Earth at an eerily close distance of less than 20,000 miles (32,000 kilometers). During this rare encounter, Apophis will be ten times closer to Earth than the Moon and scientists want to take full advantage of its visit.
Asteroid 99942 Apophis is fast approaching our home planet for an uncomfortably close encounter in 2029. In order to prepare for the rare event, NASA is calling for ideas for low cost missions to rendezvous with Apophis, but the space agency already has a pair of asteroid probes ready to take on the task.
