NASA Astronauts train for spacewalks in America’s largest pool, the Neutral Buoyancy Lab. To simulate microgravity, they practice underwater using a full-scale replica of the space station. Astronaut Anne McClain describes a spacewalk as “hanging off a cliff and performing brain surgery at the same time.” Credit: Smithsonian | National Astronaut Day

2.3K views · 3.1K reactions | Did you know astronauts train for spacewalks underwater at NASA’s Neutral Buoyancy Lab, inside a massive pool with full scale ISS mockups? It’s the closest way to rehearse microgravity, tools, and emergencies before working outside the station. Follow @spaceeves #NASA #AstronautTraining #ISS #Spacewalk | SpaceEve | Facebook

Neutral Buoyancy (Diving Position)| Recreational Skills

This is the NASA Neutral Buoyancy Laboratory. #space #nasa | Josh Universe

174K views · 642 reactions | A truly unique facility is used to train astronauts to work in microgravity ‍ NASA - National Aeronautics and Space Administration | UNILAD | Facebook