Skygazers can usually spot two or three planets after sunset, according to NASA. Hangouts of four or five that can be ...

NASA has warned that about 15,000 mid-sized “city-killer” asteroids near Earth remain undiscovered, with the potential to cause regional devastation, as scientists say no deflection mission is ready ...

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 ...

The universe might have far more amino acids lying around than we realized, which gives life itself far more chances to begin ...

Six planets—including Venus, Jupiter, and Mercury—will line up in the sky. Here’s the best time to watch and where to find clear views.

NASA might be best known for sending astronauts to the moon and launching rockets, but it has and continues to study Earth without leaving the atmosphere.

Fast forward to the present day. The Space Launch System has flown only once, during the Artemis I mission, and is preparing ...

The two biggest commercial space companies are stepping up.

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

An atmospheric scientist explains why water can do some strange-looking things at very cold temperatures, and what’s ...

Six planets will form a cosmic lineup Feb. 28 — here’s why the rare sight may be harder to spot than you think.

In 1996, a NASA satellite studying Earth’s magnetic field captured an extraordinary phenomenon: distorted human voices ...