Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A “city killer” asteroid the size of the Empire State ...

As of April 13, an infamous giant asteroid known as Apophis is now three years away from becoming the first space rock of its size to come near Earth in recorded human history. Roughly the size of ...

A large asteroid about the size of the Eiffel Tower is expected to come unusually close to Earth in 2029, but there is no risk of impact, scientists said. The asteroid, named Apophis, will pass around ...

A rare and dramatic celestial event is set to unfold in 2029 as asteroid 99942 Apophis makes an exceptionally close pass by Earth. Named after the Egyptian deity associated with chaos and darkness, ...

NASA is intensifying preparations for the April 13, 2029, flyby of asteroid 99942 Apophis, which will pass closer than many satellites. Once feared to pose an impact threat, Apophis is now seen as a ...

Richard Binzel has been watching the skies for hazardous asteroids for more than 50 years. In 1995, he proposed the Near-Earth Object Hazard Index, later renamed the Torino scale, which rates ...