NASA's planet-hunting Transiting Exoplanet Survey Satellite (TESS) is back in action, searching for worlds beyond the solar ...

Engineers are replacing a valve on the rocket that will power the first crewed test flight of Boeing’s Starliner spacecraft.

The historic first crewed launch of Boeing Co.’s Starliner spacecraft will take place no earlier than May 17, after Monday’s ...

The space agency is investing in the development of a propulsion system that uses nuclear power to create plasma bursts.

In the video​, the surface of the sun appears furred with dark yellow material as beams of gold swoop overhead.

The sun is increasing its intensity on schedule, continuing its approach to solar maximum. In just over a 24-hour period on ...

The launch of the first crewed flight of a new spacecraft to send humans to the International Space Station has been delayed ...

When the Orion spacecraft carries the first Artemis crews to the moon and back, it will rely on the European Service Module ...

Scientists at the University of Surrey are developing a new way to power low-orbit spacecraft using – literally – thin air.

Boeing's Starliner is the latest addition to the surprisingly short list of passenger spacecraft in NASA's history.

NASA’s Boeing Starliner launch has now been pushed to a later date to fix a valve issue that is occurring with the rocket.

NASA announced Wednesday that Boeing's Starliner crew flight test has been pushed back another week as United Launch Alliance ...