One rock, as big as a football field, careening through space on an elliptical orbit that lasts four years, suddenly found itself one of the most observed bodies in our solar system, according to NASA ...

NASA's Jet Propulsion Laboratory is tracking asteroid 2025 XV, a 290-foot building-sized object, set to safely pass Earth on December 18.

On Thursday and Saturday, two different asteroids will hurtle past Earth at close range. You can watch them both live.

Following months of hindered radar observations caused by Hurricane Maria's power outages, the Arecibo Observatory Planetary ...