Ever wonder how Astronauts get in and out of a spacecraft during a spacewalk? 🤔🚀 They use something called an airlock, a special chamber that keeps the spacecraft pressurized while allowing astronauts to step into the vacuum of space. Fun fact: The first space airlock was disposable and launched with Voskhod 2 back in 1965! 😲 👨‍🚀 Would you go on a spacewalk if you had the chance? We Believe In Astronauts™ | National Astronaut Day