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

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 ...

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 ...

This meant subjecting microbes to minimum pressures equivalent to ten times those of the Mariana Trench, the deepest part of ...

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

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

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

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

When we eventually mine asteroids, humans and robots will not leave unprotected microbes on the surface. Instead, machines ...

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

NASA officials warn thousands of undetected “city killer” asteroids may be circling near Earth. With limited deflection tools ready, are we prepared if one suddenly shifts onto a collision course?

In Madison and nearby southeast Missouri counties, William Jud, a Fredericktown geologist, may have identified a buried ...