A NASA scientist is warning that Earth currently has no reliable way to stop thousands of so-called “city-killing” asteroids that could one day strike the pla ...

A small but mighty piece of lab equipment, about the size of a cellphone, has arrived at the International Space Station ...

NASA has always made it a point to encourage us citizen scientists to lend them a hand. Right now, they could really use your help protecting Earth against waves of punishing, disruptive solar winds.

NASA just launched rockets into the northern lights and captured the hidden electricity that powers them.

On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a cosmic ray detector, was designed to measure the radiation environment in Earth ...

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

On 14 February 2026, at the American Association for the Advancement of Science annual meeting in Phoenix, Arizona, Kelly ...

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

How is it possible for the ISS to stay in orbit? Learn more about the science behind orbiting Earth and more in this NASA ...

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 ...

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 ...

For 42 years, NASA satellites have tracked how sunlight powers Earth’s climate. The long record is revealing subtle shifts that could reshape climate predictions. These findings are adding new layers ...