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 ...

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 ...

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 ...

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

Estimating a mass for a potentially hazardous asteroid (PHA) is perhaps the single most important thing to understand about ...

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

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

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.

This week the telescope revealed its first real-time sky alerts, issuing 800,000 alerts for transient events in just one night, February 24, 2026. Some of these were variable stars – which go through ...

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