Mullane (b. 1945) became an astronaut in 1979 and flew on three space shuttle missions. His first mission, on August 30, 1984, was the first voyage of space shuttle Discovery. During that mission, Discovery orbited the Earth 96 times over 145 hours before landing in California on September 5, 1985. Mullane flew on two missions aboard space shuttle Atlantis, in December 1988 and February 1990.
Space shuttle Discovery flew its first mission in 1984, and its last mission in February 2011. It was the third space shuttle, following Columbia and Challenger. It flew 39 missions, more space flights than any other spacecraft to date. It was the first space shuttle to be retired, followed by Endeavour and then Atlantis. Discovery is now on display at the Smithsonian.
I mailed to Mullane on November 16 and got the card back signed on November 24, for a 12-day TAT.