Estimating a mass for a potentially hazardous asteroid (PHA) is perhaps the single most important thing to understand about ...

The world’s first full-scale planetary defense test is in motion. The mission is called DART and what scientists learn from it could save humankind from a future catastrophic event. Nancy Chabot is a ...

China is recruiting for a planetary defense force amid growing global focus on the risk of asteroids colliding with Earth.

Space agencies maintain that global cooperation and sustained investment are vital to planetary defence. While the DART ...

NASA's top planetary defense expert reveals the biggest threat isn't Hollywood-style doomsday rocks, but undiscovered 'city-killer' asteroids. While large and small threats are known, an estimated 25, ...

The first flight mission for planetary defense, NASA's Double Asteroid Redirection Test (DART) seeks to validate a method to protect Earth from the threat of an asteroid impact. By smashing a ...

NASA planetary defense experts report that mid-size near-Earth asteroids could cause regional damage, with detection and deflection remaining limited, according to New York Post and AAAS reports.

On nights when an asteroid is scheduled to pass Earth, a certain type of silence is present. It's not a storm warning's ...