<p>Training underwater for extravehicular activity (EVA)—popularly known as spacewalking—is now critical for preparing astronauts to work in weightlessness. But when cosmonauts and astronauts first ventured outside their spacecraft 50 years ago, in 1965 and 1966, they had no such training. Spacewalking did not appear difficult, nor did space program officials think that underwater work was needed.   <a href="http://blog.nasm.si.edu/space/inventing-underwater-training/">...Continue Reading</a></p> <p>The post <a rel="nofollow" href="http://blog.nasm.si.edu/space/inventing-underwater-training/">Inventing Underwater Training for Walking in Space</a> appeared first on <a rel="nofollow" href="http://blog.nasm.si.edu">AirSpace</a>.</p>
