Mario Runco Jr. logged over 551 hours in space during a career that spanned three Space Shuttle missions. A physicist and former U.S. Navy commander, he transitioned from meteorology and oceanography into an astronaut role in 1987, ultimately dedicating decades to federal service across four different agencies before retiring in 2017.
Early Career and Education
Born in 1952 in The Bronx, New York, Runco graduated from Cardinal Hayes High School in 1970. He earned a bachelor of science degree in meteorology and physical oceanography from the City College of New York in 1974, followed by a master of science degree in meteorology from Rutgers University in 1976. Early professional roles included working as a research hydrologist for the United States Geological Survey and as a New Jersey State Trooper. He joined the U.S. Navy in 1978 and held various positions, including Meteorological Officer aboard the USS NASSAU and Commanding Officer of Oceanographic Unit 4 on the USNS CHAUVENET.
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Selected as an astronaut candidate in 1987, Runco qualified as a mission specialist in 1988. He flew on STS-44 in 1991, STS-54 in 1993, and STS-77 in 1996. During his second mission, he performed a 4.5-hour spacewalk. Beyond flight duties, he served as a CAPCOM for numerous missions and contributed to the design of the Space Shuttle crew escape system following the Challenger accident.
Scientific Contributions to the ISS
Runco specialized in Earth and planetary science, focusing on spacecraft optics and utility. He was the lead for the International Space Station's Science Window and the Window Observational Research Facility. He helped design the nadir science window for the Destiny Module and the station’s Cupola windows. For this work, he received the Rotary National Space Achievement Stellar Team Award in 2002.
Fast facts
- Born: 1952, The Bronx, New York
- Selected as astronaut candidate: 1987
- Total time in space: Over 551 hours
- Military rank: Commander
- Education: City College of New York, Rutgers University
- Retirement date: December 31, 2017
Questions readers ask
How many space missions did Mario Runco Jr. complete?
He flew on three Space Shuttle missions: STS-44, STS-54, and STS-77.
What was his primary contribution to the International Space Station?
He served as the lead for Spacecraft Window Optics and Utilization, helping design the station's science windows and the Window Observational Research Facility.
Achievements
- Affiliated with Naval Postgraduate School
- Educated at City College of New York, Rutgers University and Cardinal Hayes High School
- Worked as military officer, astronaut and physicist
