bob benhken took part in four spacewalks, just in this mission alone when they were up in space for twoace some old batteries that a space station needed. fresh patties tell macro batteries to lasted well into the future. so they were very well trained and experienced, just what you wanted, which was a test flight, the first time this test flight has taken humans to and from space. they we re very taken humans to and from space. they were very well—trained, knew what to expect and were prepared for anything that might have gone wrong. it looks like it's been a very successful mission from beginning to end. libby, just remind viewers who may have joined us, end. libby, just remind viewers who may havejoined us, why end. libby, just remind viewers who may have joined us, why is this so significant? there really two key reasons, but the first is that this is america sending humans to and from space on their own rocket from their own soil, which is the first time they've been able to do that since the space shuttle retired in 2011. it allows us now to have a different way to send astronauts