"For asteroids of the size scale relevant to planetary defense (i.e., ∼50-500 m), the mass can only be directly measured ...

A 140-foot asteroid is set to sweep past Earth today, and it seems everyone is taking notice. Astronomers have been tracking the space rock, officiall.

She’s worried about the a-rock-alypse. A planetary defense expert is warning that humanity is defenseless against up to 15,000 undetected near-Earth asteroids that have the potential to take out a ...

A 170-foot asteroid is set to race past Earth today at extraordinary speed, NASA says. Though no impact is expected, ...

NASA's head of planetary defence, Dr Kelly Fast, has issued an unsettling update on thousands of ‘city-killer’ asteroids that could hit Earth.

NASA’s Lucy spacecraft flew by asteroid Dinkinesh and made a surprising discovery, a close binary! Preliminary statistics ...

A NASA planetary expert has revealed that humankind has no way to protect against a city-killer asteroid if it were to head ...

A NASA planetary defense officer warns thousands of near-Earth asteroids capable of destroying a city remain undetected.

Imagine a rock the size of a football stadium hurtling through space at thousands of miles per hour, heading straight for a major city, and we have no way to stop it. NASA has just issued a sobering ...

The object is hurtling towards the Earth at a zippy 12,616 miles per hour, according to data from the space agency.

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

The dinosaurs were wiped out by an asteroid, but does that mean we risk suffering the same fate - and should you be worried about the possibility? Leah Crane sets the matter straight ...