NASA Envisions International Fleet of Apophis Reconnaissance Spacecraft
NASA officials are encouraging the international space community to launch several small spacecraft to study the asteroid Apophis before it makes a close approach to Earth in 2029. It is more of a concept than a plan at this stage, but the idea is to get imagery and other data before the encounter to compare with data that will be acquired by another spacecraft — already in space — afterwards to add to the planetary defense knowledge base for the day an Earth-threatening asteroid is on its way.