In the early 1960s, NASA was considering three different ideas for landing a man on the lunar surface. Houbolt’s plan ultimately won out despite concerns within NASA that it was too risky.
(Image credit: NASA/LARC/Bob Nye/PhotoQuest/Getty Images)
Click here for original story, Meet John Houbolt: He Figured Out How To Go To The Moon, But Few Were Listening
Source: NPR Space News