The alumni of Missouri University of Science and Technology, or Missouri S&T, include both graduates and non-graduates who have attended the University located in Rolla, Missouri. Missouri S&T was founded as the Missouri School of Mines and Metallurgy (MSM) in 1870, the first technological institution west of the Mississippi River. In 1964, the school's name was changed to University of Missouri–Rolla (UMR) as part of the University of Missouri System, and the most recent name change to Missouri University of Science and Technology took effect in 2008. The university's alumni span multiple fields and careers, particularly those concentrated in science, technology, engineering, and mathematics. The creator of Twitter, Jack Dorsey, enrolled at Missouri S&T in 1995 majoring in computer science and mathematics, but transferred out during his junior year. Many NASA astronauts and engineers are graduates from Missouri S&T, such as Sandra Magnus, who was aboard the last American Space Shuttle, and George Mueller, who helped enable the Apollo 11 moon landing. (Full list...)