NASA's Double Asteroid Redirection Test (DART) impacted the 'moonlet' Dimorphos in the Didymos asteroid system. The Les Makes ...

The first flight mission for planetary defense, NASA's Double Asteroid Redirection Test (DART) seeks to validate a method to ...

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

Early last year, asteroid 2024 YR4 caught the public’s attention as its chances of hitting Earth in the near future climbed ...

Some 66 million years ago, life on Earth had a pretty bad day. The infamous Chicxulub asteroid slammed into the planet. The impact and its aftermath annihilated countless species, including all ...

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 already knew this could be a doozy. Astronomers previously estimated if 2024 YR4 hits the moon, it could form a crater about one kilometer wide and release some 100 million metric tons of ...

A new study shows that the event that wiped out the dinosaurs caused only a small drop in shark and ray species at the same time.

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

A study found that these cosmic bodies appear to hold up remarkably well to sudden energy deposition and shock conditions, so we may be able to knock them off course and avoid disaster.

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

In a new paper, an international team of researchers revisited the idea of blowing up an incoming asteroid with a nuclear ...