Boeing and SpaceX test the next U.S. ride to space: The international space station is expecting two visitors this month: Starliner and Crew Dragon - [News]

Two possible successors to NASA's space shuttle are scheduled to visit the International Space Station this month, in their last big step before they transport humans. A successful flight test for Boeing's CST-100 Starliner and SpaceX's Crew Dragon spacecraft would show that these vehicles are finally ready to carry both NASA astronauts and space tourists into orbit.