The organisation want to rehash an old mission concept for planetary defence, instead of the initially-intended science aims
Astronomers make use of a decade-long wait to plan for near Earth-asteroid flyby
Many questions could be answered as the asteroid, named 99942 Apophis, journeys within the orbit of the Moon in 2029
Radio observations of near-Earth object reveal a rare binary asteroid
A near-Earth asteroid discovered last year turns out to be two objects of equal size orbiting each other
Astronomers get first observations of smallest-known asteroid
The object, named 2015 TC25, is also one of the brightest near-Earth asteroids ever discovered