Ronald Michael "Ron" Sega (born December 4, 1952) is an American former astronaut who is professor of systems engineering and Vice President for Energy and the Environment at the Colorado State University Research Foundation, a non-profit advocacy organization supporting CSU.

[4] Sega graduated from Nordonia High School, Macedonia, Ohio, in 1970 after which he received a Bachelor of Science degree in mathematics and physics from the United States Air Force Academy in 1974, a Master of Science degree in physics from Ohio State University in 1975, and a doctorate in electrical engineering from University of Colorado at Boulder in 1982.

From 1979 to 1982 he was on the faculty of the United States Air Force Academy in the physics department where he designed and constructed a laboratory facility to investigate microwave fields using infrared techniques while pursuing a doctorate in electrical engineering.

These activities involved building an organization and infrastructure to support astronaut and cosmonaut mission and science training for flight on the Russian Space Station Mir.

Sega was the flight engineer for ascent and entry on this mission, performed several experiments on orbit, and operated the robotic arm, berthing the Wake Shield onto its payload bay carrier on four separate occasions.

[5] STS-76, the third docking mission to the Russian space station Mir, launched at night on March 22, 1996, with a crew of six aboard Atlantis.

Biorack was used to technology development, fundamental biology (research into plant and animal cellular function), and environment characterization.

Following 144 orbits of the Earth, Atlantis landed with a crew of five at Edwards Air Force Base in California on March 31, 1996.

[7][8] In January 2004, during Sega's tenure as director, a DoD-wide review of human subjects protection policies was initiated by Defense Research and Engineering (DDR&E).

"[7] In 2005 he became Under Secretary of the Air Force, thus serving as Department of Defense Executive Agent and Milestone Decision Authority for Space.