An artist’s depiction of the Earth Reliant, Proving Ground and Earth Independent thresholds, showing key capabilities that will be developed along the way.
The space station is the only microgravity platform for the long-term testing of new life support and crew health systems, advanced habitat modules, and other technologies needed to decrease reliance on Earth. NASA astronauts Kjell Lindgren, left, and Scott Kelly are pictured here, just before the halfway point of Kelly’s one-year mission…
