Russia and China can black out military satellites in seconds. A Latvian startup says nuclear-waste generators using 5x less fuel could keep satellites—and lunar bases—running.

Venus and Saturn will appear close together in the night sky Sunday, March 8. Here's how to see the conjunction from around ...

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from a European Space Agency orbiter on its way ...

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from a European Space Agency orbiter on its way ...

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from the a European Space Agency orbiter on its ...

For more than a decade, NASA’s Curiosity rover has been climbing a Martian mountain, reading the planet’s ancient history layer by layer. Now, a discovery of web-like rock for ...

Artemis II has been plagued by similar issues to those faced by its predecessor, leading NASA to shake up its plan to return ...

There is a silence in the night sky that has bothered me for as long as I can remember. ” That observation, attributed to ...

A computer expert pulled off the 'biggest military computer hack of all time,' breaching NASA's system to find what he said ...

The interstellar comet 3I/ATLAS was the third object ever discovered in our solar system that originated from another star system. Despite a viral conspiracy theory, NASA officials have repeatedly ...

Humanity’s plans for deep-space exploration hinge on the ability to use basic resources, such as water, to propel rockets to farther destinations in the solar system. Despite decades of ...

Former President Barack Obama said he did not see evidence that aliens "have made contact with us," after sending social media abuzz by saying aliens were real on a podcast over the weekend. During a ...