Beyond our solar system, countless alien worlds of lava, ice, water and noxious gas swirl through the cosmos. Here are some ...

To date, over 5000 exoplanets have been discovered using telescopes on the ground and in space. Credit: NASA/JPL-Caltech ...

Astrophysicists estimate that any exponentially growing technological civilization has only 1,000 years until its planet will ...

Are we alone? One of the big questions that people would like to answer is whether life exists elsewhere in the Universe. Given the scale of the Universe, planetary scientists have tended to focus on ...

NASA has switched off another scientific instrument on its Voyager 2 spacecraft to save power. The space agency said Tuesday ...

Thunderstorms create a lot of wind, rain, and lightning, but many people aren’t necessarily aware of another common byproduct: gamma radiation. Thanks to a creative retrofit of an old U-2 spy plane ...

Alien: Romulus might be set 20 years after Alien, but its ending links it back to Prometheus in a shocking way, as well as leaving plenty of unanswered questions. The movie follows a group of ...

Because NASA rotates space station crews approximately every six months, this newly launched flight with two empty seats ...

"We need to continue our vigilance for every flight, for every mission." Even before NASA removed two astronauts from the SpaceX Crew-9 mission to the ISS, the crew knew that no spaceflight is ...

The switch in rides left it to NASA's Nick Hague and Russia's Alexander Gorbunov to retrieve Butch Wilmore and Suni Williams. Since NASA rotates space station crews approximately every six months ...

NASA and SpaceX are still targeting a Saturday launch for the Crew-9 mission, whose astronauts will head to orbit aboard a Dragon spacecraft that will bring the Starliner crew back to Earth next year.