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 ...

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 ...

Around 15,000 mid-sized asteroids, known as 'city-killers', are unaccounted for as they zoom around space close to planet Earth - with the potential to cause devastating damage ...

NASA experts are raising alarms about the growing threat posed bynear-Earth asteroids, with some of these objects having the ...

"We don’t know where they are,” said NASA’s planetary defense officer Kelly Fast at the AAAS conference in Arizona this week.

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

Scientists are raising serious alarms about hidden threats from space that could strike Earth without warning. NASA officials have revealed that thousands of large asteroids, capable of destroying ...

Earth cannot defend itself against the thousands of “city killer” asteroids that are zooming around space near our planet, ...

An asteroid the size of a building could collide with the Moon in 2032 and generate a flash visible from Earth.