As the four-person crew of Artemis II prepares to launch on a historic mission around the moon as soon as February, some experts are worried about the spacecraft’s heat shield.

Scientists Say Saturn’s Moon Could Host Alien Life ...

Astronauts of the future may be radically different from the rest of us in physiology and psychology. So, to what extent ...

Elon Musk appears at Davos for the first time, speaking on stage at World Economic Forum in Switzerland. Speaking directly with co-host Larry Fink, Elon says self-driving is basically solved, pointing ...

Scientists found that microgravity fundamentally slows the infection cycle, pushing phages to become hyper-efficient at binding to hosts.

From moon hotels and billionaire space tourism to SETI’s 21-year search for alien technosignatures, and a censored UFO ...

Ancient shoreline features hint that water on Mars once formed a vast ocean.

NASA’s Artemis II Moon rocket is now at the launch pad, setting the stage for final prelaunch tests. The mission will send ...

We now have direct images of two supermassive black holes: M87* and Sag A*. The fact that we can capture such images is ...

A Mars spacecraft has now been AWOL for more than a month. But NASA hasn't given up hope of restoring contact with the MAVEN ...

That would make it thousands of times more massive than any moon orbiting a solar system plane  — so massive it could make ...

Spacecraft orbiting the Red Planet have helped researchers map out an ancient coastline that surrounded a large ocean billions of years ago ...