“What keeps me up at night is the asteroids we don’t know about," said NASA's planetary defense chief.

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

The National Aeronautics and Space Administration (NASA) has issued a stern warning after the agency’s head of planetary ...

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

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

NASA has made an alarming admission, revealing it has no idea where thousands of ginormous asteroids are currently located. The space rocks have terrifyingly been dubbed 'city killers' due to their ...

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 ...

NASA has raised red flags over growing asteroid threats that could potentially damage the Earth.To one’s surprise, astronomers are unaware of the location of thousands ...

NASA warns asteroid YR4 has a 1 in 32 chance of impact by 2032. At 177 feet wide, it could flatten a city with an 8-megaton blast. JWST will refine its trajectory soon.

On hearing the words "city killer" and "asteroid" in the same sentence, you'd be forgiven for thinking something bad is about to happen. But not to fear. Although an asteroid with the potential to ...