Recent observations have removed from NASA's asteroid impact hazard list the near-Earth object (NEO) known to pose the most significant risk of Earth impact over the next 100 years.
› Read more (April 03, 2014)
Dawn Wins National Air and Space Museum Trophy
Dawn receives prestigious National Air and Space Museum Trophy.
› Read more (March 28, 2014)
Rosetta Sets Sights on Destination Comet
The Rosetta spacecraft caught its first glimpse of its destination comet since waking up from deep-space hibernation on Jan. 20, 2014.
› Read more (March 27, 2014)
Be an Asteroid Hunter in NASA's First Asteroid Grand Challenge Contest Series
NASA's Asteroid Data Hunter contest series will offer $35,000 in awards over the next six months to citizen scientists who develop improved algorithms that can be used to identify asteroids.
› Read more (March 10, 2014)
Average distance between Earth and the moon is about 239,000 miles (385,000 kilometers).
The Asteroid Watch Widget tracks asteroids and comets that will make relatively close approaches to Earth. The Widget displays the date of closest approach, approximate object diameter, relative size and distance from Earth for each encounter. The object's name is displayed by hovering over its encounter date. Clicking on the encounter date will display a Web page with details about that object.
The Widget displays the next five Earth approaches to within 4.6 million miles (7.5 million kilometers or 19.5 times the distance to the moon); an object larger than about 150 meters that can approach the Earth to within this distance is termed a potentially hazardous object.