U.K. start-up Pulsar Fusion has unveiled plans to build a fleet of reusable nuclear fusion-powered rockets, known as Sunbirds ...

NASA and SpaceX made another attempt on Friday to send a crew up to the International Space Station (ISS) and begin the ...

Soviet Russia's Soyuz 11 cosmonauts Georgi Dobrovolski, Vladislav Volkov, and Viktor Patsayev died on their return to Earth ...

A Falcon 9 rocket is scheduled to lift off from Vandenberg Space Force Base Friday at 2:49 a.m. EDT (0649 GMT; 11:49 p.m. on ...

Sunita 'Suni' Williams and Barry 'Butch' Wilmore have been stuck on the International Space Station for nine months.

The Sunbird nuclear fusion rocket concept has the potential to more than halve the time to travel to Mars and cut travel time ...

The former Google chief executive is taking a controlling interest in Relativity Space, which aims to build low-cost, ...

“Satellites and rocket parts of moderate size re-enter ... launch and break away from the vehicle after it reaches the vacuum of space. And while SpaceX tries to recover fairing pieces as ...

The new Neutron rocket includes a "hippo" mouth fairing that deploys upper stages by spitting them out from inside.

The $488 million Spherex mission aims to explain how galaxies formed and evolved over billions of years, and how the universe ...

Tokyo-based startup Space One Co.'s second attempt to launch a rocket to propel it into the space-delivery service business failed shortly after the Kairos 2 lifted off around 11 a.m. on Dec. 18.