John Glenn Prepares for Friendship 7 LaunchAstronaut John H. Glenn Jr., finishes suiting up, and prepares for the launch of his Mercury-Atlas 6 (MA-6) spacecraft. The MA-6 Friendship 7 mission marks America's first manned Earth-orbiting spaceflight.Read More Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/john-glenn-prepares-friendship-7-launch/Copy URL to clipboard> DownloadShareSize1041x1336px