Jack R. Lousma, American colonel, astronaut and politician

Jack Robert Lousma is an American astronaut, aeronautical engineer, retired United States Marine Corps officer, former naval aviator, NASA astronaut, and politician. He was a member of the second crew, Skylab-3, on the Skylab space station in 1973. In 1982, he commanded STS-3, the third Space Shuttle mission. Lousma was inducted into the United States Astronaut Hall of Fame in 1997. He is the last living crew member of both of his spaceflights.

February 29 is a leap day —an intercalary date added periodically to create leap years in the Julian and Gregorian calendars. It is the 60th day of a leap year in both Julian and Gregorian calendars, and 306 days remain until the end of the leap year. It is the last day of February in leap years only. It is also the last day of meteorological winter in the Northern Hemisphere and the last day of meteorological summer in the Southern Hemisphere in leap years.