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.

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

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

The object is hurtling towards the Earth at a zippy 12,616 miles per hour, according to data from the space agency.

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

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 ...

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

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 ...

The discovery is just the latest to come from the asteroid sample, which dates back to the dawn of the solar system.

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.