SPACEX

Boeing and Lockheed Martin could lose a government contract to build rockets that launch national security satellites.

The mission will deliver 3,669 pounds of cargo to the Expedition 40 astronauts aboard the space station.

The Angara rocket is to the first to be developed entirely in Russia.

American space companies said they still have contracts for Russian equipment, but they're rushing to develop their own technology.

NASA has announced the next phase of certification for its Commercial Crew Program which is working with commercial partners to bring manned launches back to America.

“It’s not only that the Russians are taunting us. They are massively overcharging.”

SpaceX CEO Elon Musk will unveil the Dragon V2 spacecraft on Thursday.

In the latest from a partnership with NASA, SpaceX will unveil its latest ship model, meant to shuttle astronauts to and from the International Space Station.

The United Launch Alliance had a successful launch of the classified NROL-33 mission on Thursday.

NASA reports progress on several research fronts, including projects related to antibiotics and immune-system treatment.

United Launch Alliance successfully launched a GPS satellite for the U.S. Air Force on Friday.

A burgeoning workforce at the company belies its daunting challenges, while one analyst counsels ditching the auto business.

Tesla founder Elon Musk's space company is looking to replace Russian rockets for U.S. launches.

Astronauts will attempt to grow fresh vegetables aboard the International Space Station.

SpaceX wants its contract, but the United Launch Alliance isn't going to let it go so easily.

Russia’s Deputy Prime Minister Dmitry Rogozin said NASA should use a trampoline to send astronauts to the International Space Station.

SpaceX released a video of the successful soft landing of the Falcon 9 rocket into the Atlantic Ocean on Tuesday.

CEO Elon Musk is filing a lawsuit to allow competition for contracts. "If SpaceX competes and loses, that's fine," he insists.

The spacecraft will return to Earth in May via parachute-assisted splashdown in the Pacific Ocean.

Friday's SpaceX launch was a success and the Dragon Spacecraft will reach the International Space Station early Easter morning.

The SpaceX International Space Station Resupply mission launch is scheduled for Friday. NASA's live stream coverage begins at 2:15 p.m. EDT but inclement weather may threaten the launch.