Astronaut John Glenn During Mercury-Atlas 6 Pre-launch ActivitiesIn this image from January 23, 1962, Glenn gives ready sign during Mercury-Atlas 6 pre- launch training activities.Read More Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/astronaut-john-glenn-during-mercury-atlas-6-pre-launch-activities/Copy URL to clipboard> DownloadShareSize1041x1323px