Space

Its symbol is a stylized Greek delta sign based on the seal used by U.S. Air Force Space Command.

Astronauts squeezed in one last spacewalk Tuesday before turning their attention to the all-important end to SpaceX's first crew flight.

NASA's Bob Behnken and Chris Cassidy ventured out on their third spacewalk over the past few weeks.

Michael Colglazier will become CEO of the Mojave, California-based space travel company and join the Virgin Galactic board of directors as of July 20.

SpaceX is headquartered in Hawthorne, Calif.

Tesla CEO Elon Musk mocked short sellers and the Securities and Exchange Commission in a series of tweets Thursday following a surge in the automaker's stock. 

For every two outdated batteries coming out, a new and improved one goes in to supply power to the space station on the night side of Earth.

A SpaceX Falcon 9 rocket delivered a Space Force Global Positioning System satellite into orbit Tuesday.

NASA astronaut Chris Cassidy on Friday lost a small mirror that floated away at a foot per second.

Using data from 17 satellites, three space agencies have created a website that serves as a global dashboard for temporary changes observed from orbit.

StartRocket is now working on a project to clear potentially-dangerous debris orbiting the Earth.

Virgin Galactic Holdings has signed an agreement with NASA to develop a program to promote private astronaut missions to the International Space Station.

The ISS program manager will be replaced by the official overseeing Boeing's Starliner astronaut capsule.

SpaceX CEO Elon Musk said Tuesday on Twitter that the company will use offshore spaceports to launch humans into space.

SpaceX's success is paving the way for private companies to drive space travel.

NASA's inspector general is investigating an allegation that a high-ranking NASA official earlier this year improperly guided Boeing Co. regarding an agency competition for lucrative lunar-lander contracts.

Amateur astronauts, private space stations, flying factories, out-of-this-world movie sets — this is the future the space agency is striving to shape as it eases out of low-Earth orbit and aims for the moon and Mars.

The asteroid, which is known as 163348 (2002 NN4), will come within 3.2 million miles of the Earth.

This weekend's full Moon will be a “strawberry moon,” according to NASA.

Gen. John Raymond and Chief Master Sgt. Roger Towberman wrote that "we are all hurting."