NASA’s interest in leading a Mars sample return mission with international partnerships has struck a chord.

When it comes to investing in space-related businesses, companies often have been reluctant to pursue what they perceive to be big risks. But the organizers of a new study on the size of the space market think change is coming.

Retired NASA astronauts Eileen Collins, Terry Virts and Scott Parazynski want those who follow them to succeed.

President Donald Trump on June 18 directed the Pentagon to establish a “Space Force” as a sixth branch of the U.S. armed forces.

NASA astronauts have installed two high-def cameras outside the ISS's U.S. segment that will monitor the agency’s Commercial Crew Program spacecraft.

Biology and biotechnology experiments soon headed for the International Space Station could have a number of far-reaching implications.

Darpa envisions an operational constellation of 60-200 satellites at 500-1,300-km altitude, each carrying one or more payloads and each costing less than $6 million including its launch.

A SpaceX Falcon 9 rocket lifted off from Cape Canaveral Air Force Station early June 4 to deliver a powerful new communications satellite into orbit for Luxembourg-based SES.