SOS: Astronauts can make a quick getaway via a zip line

As if astronauts didn't have a cool enough job already, they now get to also zoom down a zip line. Engineers at Cape Canaveral Air Force Station recently finished testing an exit system designed to quickly transport astronauts to safety in case of a launch emergency. The zip line is being prepped for crew members of Boeing's CST-100 Starliner crew capsule, which will be launched toward the International Space Station atop the Atlas V rocket. The zip line begins 172 feet in the air, on