Did you know that John Young, moon walker and NASA’s longest-serving astronaut, dies at 87?
Did you know that Young enjoyed the longest career of any astronaut,
becoming the first person to fly six space missions (with seven
launches, counting his lunar liftoff) over the course of 42 years of
active NASA service?
Did you know that Young was the only person to have piloted, and been commander of, four different classes of spacecraft: Gemini, the Apollo Command/Service Module, the Apollo Lunar Module, and the Space Shuttle?
Did you know that after joining NASA in 1962, Young was the first of the Astronaut Group 2 to fly in space, replacing Thomas P. Stafford as pilot of Gemini 3 when Alan Shepard, the original command pilot, was grounded due to Ménière’s disease? 
Did you know that Young worked for NASA for 42 years and announced his retirement on
December 7, 2004. He retired on December 31, 2004, at the age of 74, but
continued to attend the Monday Morning Meeting at the Astronaut Office
at JSC for several years thereafter?.
Did you know that Young logged more than 15,275 hours flying time in props, jets, helicopters, and rocket jets; more than 9,200 hours in T-38s; and 835 hours in spacecraft during six space flights?
Did you know that Young died on January 5, 2018 he was 87?.
Did you know that in 2012, Young published an autobiography, Forever Young. John Young, NASA’s longest-serving astronaut,
who flew in space six times, walked on the moon, commanded the first
space shuttle and became the conscience of the astronaut corps,
advocating for safety reforms in the wake of the 1986
Gemini 3 in 1965, that Young smuggled aboard a corned beef sandwich.?
Did you know that because of Young smuggling a Cornbeef sandwich during his first mission, aboard
GeminiNASA officials were aghast and, from then on, strictly prohibited astronauts from taking contraband food on board?