Chinese researchers unveil how helium can improve solid-fuel rocket motors and enhance propulsion efficiency and stealth.

Barry Wilmore remains at the International Space Station after problems with a spacecraft, with late March now the scheduled ...

They’re finally coming down to Earth. Stranded Boeing Starliner astronauts Sunita Williams and Barry “Butch” Wilmore will finally make it off the International Space Station after being ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. NASA’s Suni ...

Boeing's Starliner astronauts are in the final stretch of their unexpectedly long stint in Earth orbit — and they're setting the record straight on all the "stranded astronauts" talk.

NASA astronaut Sunita Williams, stranded on the ISS since early June due to Boeing’s Starliner malfunction, has sparked health concerns after a recent photo showed visible weight loss.

Boeing announced Monday it lost $523 million on the Starliner crew capsule program last year, putting the aerospace company $2 billion in the red on its NASA commercial crew contract since late 2019.

Boeing's losses on its Starliner spacecraft topped $2 billion and counting after a rough year. Last summer, Boeing's first crew flight went awry after part of the capsule's propulsion system ...

NASA astronaut Sunita Williams, stranded on the ISS since early June due to Boeing’s Starliner malfunction, has sparked health concerns after a recent photo showed visible weight loss.

ORLANDO, Florida, Jan 30 (Reuters) - The vice president leading Boeing's (BA.N), opens new tab Starliner spacecraft unit, Mark Nappi, has left his role in the program and been replaced by the ...