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

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 ...

Scientists discussed the threat of asteroids at a recent conference in Phoenix. Here's what they said.

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 ...

While the technology still needs significant work, a new analysis of meteorites points to valuable targets in the solar ...

Around 15,000 mid-sized asteroids, known as 'city-killers', are unaccounted for as they zoom around space close to planet ...

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

A new study analyzes three asteroid and two meteorite samples to see if space rocks smacking into Earth could’ve helped ...

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 ...

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

Space around the Sun contains far more than planets. Scattered through it are smaller bodies made of rock, metal, ice and ...

Earth faces a significant threat from thousands of undetected asteroids capable of destroying cities. NASA's planetary defence chief warns that current systems cannot reliably stop these 'city-killers ...