Watch This Amazing Free NASA Doc: History of the Spacewalk

Just released this week, this new documentary, "Suit Up: 50 Years of Spacewalks" features interviews with NASA Administrator and astronaut, Charles Bolden, NASA Deputy Administrator and spacesuit designer, Dava Newman, as well as other astronauts, engineers, technicians, managers and other big names of spacewalk history, from the early spacewalking experiences, to spacesuit manufacturing, to modern day spacewalks aboard the International Space Station as well as what the future holds for humans working on a tether in space.