The first flight mission for planetary defense, NASA's Double Asteroid Redirection Test (DART) seeks to validate a method to ...

The asteroid was estimated at about 0.8 meters, and it posed zero threat to people or infrastructure on the ground.

(NEXSTAR) – There are thousands of asteroids and comets — known as Near-Earth objects, or NEOS — that orbit the Sun like any other planet in our solar system, but some can pose a risk to Earth.

NASA presented the world's experts with a terrifying asteroid 1000 times stronger than the nuclear bomb that dropped on ...