While SpaceX lost the upper stage of its new Starship in a flight test, the futuristic spacecraft presages a spaceflight revolution, says a leading U.S. space scholar.

NASA astronaut Don Pettit has shared an incredible photo of Blue Origin's New Glenn rocket during its maiden launch last week ...

NASA finds flickering coronal loops signal solar flares, paving the way for better space weather predictions and safety ...

NASA Mars Odyssey orbiter has been rotated to capture imagery of the Red Planet that would be similar to what an astronaut ...

SpaceX and Blue Origin are years away from putting astronauts on the moon. Four other companies may get there first.

NASA astronaut Sunita Williams returns to spacewalk after seven months, tackling repairs on the International Space Station.

The scenario in which space debris collides and creates more debris is called Kessler Syndrome, named after the NASA scientist Donald Kessler.

Jeff Bezos' Blue Origin successfully launched its New Glenn rocket, named after astronaut John Glenn, from Florida's historic pad. The test flight mar ...