Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
photographed in 1998
Glenn(glĕn), John Herschel, Jr. 1921-2016.
American astronaut and politician. On February 20, 1962, aboard Friendship 7, he became the first American to orbit the earth. He served as US senator from Ohio for four consecutive terms (1974-1998). In 1998 he became the oldest person to participate in a space flight mission as a crew member of the space shuttle Discovery.
(Biography) John. born 1921, US astronaut and politician. The first American to orbit the earth (Feb, 1962), he later became a senator (1975–99) and in 1998 returned to space at the age of 77
John (Herschel), born 1921, U.S. astronaut and senator: first U.S. orbital spaceflight 1962.