Video: Animation of Vulcan launch

It is a rocket like no other, a vehicle with a single solid-fuel booster mounted to its side, that will launch NASA’s OSIRIS-REx probe next month to bring back a sample of Asteroid Bennu.

NASA and Houston-based Axiom Space have signed a “mission order” setting the stage for four civilians to visit to the International Space Station early next year, the first fully commercial flight to the orbiting lab complex, agency managers said Monday.

During a visit to Cape Canaveral this week, NASA astronauts Doug Hurley and Bob Behnken strapped in to the SpaceX crew capsule they will ride into orbit as soon as mid-to-late May. Next week, the astronauts will be in Houston to continue training for an extended stay on the International Space Station that could last two-to-three months.