Technical problems could delay the beginning of regular flights by SpaceX's Crew Dragon (left) and Boeing's CST-100 Starliner until at least late 2018. Credit: SpaceX artist's concept and Boeing
Cygnus deep space
Lockheed Martin gateway
Lockheed Martin gateway
An illustration of NASA's proposed Deep Space Gateway in orbit around the moon. Credit: NASA
An illustration of NASA's proposed Deep Space Gateway in orbit around the moon. Credit: NASA
“A Moon Village,”  ESA director-general Johann-Dietrich Woerner said in 2015 “shouldn’t just mean some houses, a church and a town hall.” It could be beacon of international and even commercial cooperation. Credit: ESA artist's concept of a lunar outpost
Oliver Juckenhöfel, head of Airbus Defence and Space's  Bremen, Germany space site. Credit: Airbus
An illustration of NASA's proposed Deep Space Gateway in orbit around the moon. Credit: NASA
ISS
An illustration of NASA's proposed Deep Space Gateway in orbit around the moon. Credit: NASA