Former NASA Astronaut Danny Olivas describes what it's like to perform a spacewalk and explains why astronauts do them.
원문출처 : https://www.cnn.com/videos/business/2021/05/25/former-nasa-astronaut-danny-olivas-spacewalk-gr-orig.cnn
원문출처 : https://www.cnn.com/videos/business/2021/05/25/former-nasa-astronaut-danny-olivas-spacewalk-gr-orig.cnn