Most people will never train to walk in space, but you can always get a cheapo Google Cardboard and play the latest 360 ultra high-definition video out of NASA's headquarters to pretend that you are. The space agency used Harmonic's VR tech to show three different perspectives of astronauts training at its Neutral Buoyancy Laboratory in Houston. That's a humongous pool with a life-size replica of the ISS, where they perform simulated tasks for their future missions aboard the space station. If you don't have a VR headset right now, you can still watch the whole thing below the fold -- don't forget to set the quality to 4K and drag the screen to look around for max enjoyment.