Isar Aerospace, based in Germany, is the first in a crop of new European rocket companies to attempt an orbital launch. If ...

Last June, Starliner launched on its first-ever crewed flight, which sent NASA astronauts Butch Wilmore and Suni Williams to the International Space ... helium leaks in its propulsion system ...

Scorpius Space Launch Co. (SSLC ... for its cryogenic propulsion system (read “Type V pressure vessel enables lunar lander”). The Type 5 all-composite unibody Pressurmaxx liquid methane and liquid ...

NASA astronauts Cmdr. Barry "Butch" Wilmore and pilot Sunita "Suni" Williams spent nine months aboard the space station on what was supposed to be an eightish-day mission.

Elon Musk said on Fox News Tuesday that SpaceX offered to save astronauts several months earlier than planned, but his ...

Hague and Gorbunov spent 171 days in orbit since their launch last September ... multiple propulsion system helium leaks and thruster problems during rendezvous with the space station, and NASA ...

(AP Photo/John Raoux) Astronaut Anne McClain leaves the Operations and Checkout building before heading to Launch ... of helium leaks and thruster failures marred their trip to the space station ...

Hague and Gorbunov spent 171 days in orbit since their launch last ... to the International Space Station last June 5 on the ...

Nasa in August decided the CST-100 Starliner, which carried the astronauts to the ISS in June, could not be used because of thruster problems and helium ... the $24bn Space Launch System, Nasa ...