(CNN) — Upon its inception, NASA’s space shuttle program promised to usher in a new era of exploration, keeping astronauts space-bound with a reusable and relatively cheap ride into orbit. It was a ...

With SpaceX now launching its reusable Falcon 9 rocket up to several times a week, the U.S. company has quickly become a giant of global spaceflight. It's a far cry from the days of America's Space ...

With SpaceX now launching its reusable Falcon 9 rocket up to several times a week, the U.S. company has quickly become a giant of global spaceflight. It's a far cry from the days of America's Space ...