NASA Planetary Scientist Noah Petro dishes on what it took plan the impressive touch-and-go return mission, why much of the ...

The asteroids are as large as around 75 and 91 feet in diameter, according to the Center for Near Earth Object Studies.

NASA's first asteroid samples fetched from deep space parachuted into the Utah desert Sunday to cap a seven-year journey. In a flyby of Earth, the Osiris-Rex spacecraft released the sample capsule ...

On Friday, April 13, 2029, a giant space rock will come closer to our planet than many satellites. The asteroid, known as 99942 Apophis, measures nearly 300 meters across. Although similar-sized ...