Michael Gernhardt | |
|---|---|
Gernhardt in July 1995 | |
| Born | Michael Landon Gernhardt (1956-05-04)May 4, 1956 (age 69) Mansfield, Ohio, U.S. |
| Education | Vanderbilt University (BS) University of Pennsylvania (MS,PhD) |
| Space career | |
| NASA astronaut | |
Time in space | 43d 7h 1m |
| Selection | NASA Group 14 (1992) |
| Missions | STS-69 STS-83 STS-94 STS-104 |
Mission insignia | |
Michael Landon Gernhardt (born May 4, 1956) was aNASA astronaut, manager of the Environmental Physiology Laboratory, and principal investigator of thePrebreathe Reduction Program (PRP) at theLyndon B. Johnson Space Center.[1]
Gernhardt was selected as an astronaut in March 1992 and flew on four space shuttle missions:STS-69 (1995),STS-83 (1997),STS-94 (1997), andSTS-104 (2001).[2] Over his career, he spent more than 43 days in space and completed four spacewalks totaling 23 hours and 16 minutes.[2] He also participated in NASA's firstNEEMO mission in an underwater habitat and played a key role in later NEEMO missions that simulated lunar, Martian, and asteroid environments.[2]
Gernhardt was born inMansfield, Ohio to Suzanne C. Winters and George M. Gernhardt.[1] He graduated from Malabar High School in Mansfield, Ohio, in 1974.[1] He went on to earn a Bachelor of Science degree in Physics from Vanderbilt University in 1978.[1] In 1983, he received a Master of Science degree in Bioengineering from the University of Pennsylvania in 1983 and a Doctorate in Bioengineering in 1991.[1]
From 1977 to 1984, Gernhardt worked as aprofessional diver and projectengineer on a variety ofsubseaoil field construction and repair projects around the world.[1] He has logged over 700 deep sea dives, and has experience in air,mixed gas,bounce bell andsaturation diving.[1] During his diving career, Gernhardt attended graduate school at the University of Pennsylvania, and developed a new theoretical decompression model based on tissue gas bubble dynamics.[3] He then participated in the development and field implementation of a variety of newdecompression tables.[clarification needed] From 1984 to 1988, Gernhardt worked as Manager, and then Vice President of Special Projects, forOceaneering International. During this time, he led the development of a telerobotic system for subsea platform cleaning and inspection, as well as a variety of new diver and robot tools.[4] In 1988, he foundedOceaneering Space Systems, a company formed to transfer subsea technology and operational experience to the ISS program.[1][4] From 1988 until his selection by NASA in 1992, he worked on the development of new astronaut and robot-compatible tools for performing maintenance onSpace Station Freedom.[4] He also worked on the development of new portable life support systems and decompression procedures forextra-vehicular activity.[4]
At NASA, Gernhardt reported to the Johnson Space Center in August 1992. His technical assignments to date include:[1]
Gernhardt presently serves as a member of the astronaut office EVA branch, as Principal Investigator of the Prebreathe Reduction Program, and as Manager of JSC's Environmental Physiology Laboratory.[1]
A four-flight veteran, Gernhardt has logged over 43 days in space, including 4 spacewalks totaling 23 hours and 16 minutes. He was a mission specialist onSTS-69 in 1995,STS-83 in 1997,STS-94 in 1997, andSTS-104 in 2001.[1]

Gernhardt served as anaquanaut on the firstNEEMO (NASA Extreme Environment Mission Operations) crew aboard theAquariusunderwater laboratory in October 2001.[8] In April 2005, he was the commander of theNEEMO 8 mission.[9][10]
Gernhardt drove the lunar rover prototype at PresidentBarack Obama's inaugural parade on January 20, 2009.[11]
On September 19, 2011,NASA announced that Gernhardt would participate in theNEEMO 15 mission in October 2011 from theDeepWorkersubmersible. The DeepWorker is a smallsubmarine used as an underwater stand-in for theSpace Exploration Vehicle, which might someday be used to explore the surface of anasteroid.[12]In June 2012, Gernhardt piloted the DeepWorker as part of theNEEMO 16 mission, for which he was principal investigator.[13][14]
STS-69 took place from September 7–18, 1995.[1] Its prime objective was the successful deployment and retrieval of aSPARTAN satellite and theWake Shield Facility (WSF). The WSF was designed to evaluate the effectiveness of using this free-flying experiment to growsemiconductors, high temperaturesuperconductors and other materials using the ultra-highvacuum created behind the spacecraft, near the experiment package. Gernhardt was one of two astronauts to perform a spacewalk to evaluate future Space Station tools and hardware, logging 6 hours and 46 minutes of EVA. Mission duration was 260 hours, 29 minutes, and 8 seconds, traveling 4.5 million miles in 171 orbits of theEarth.
STS-83 took place from April 4–8, 1997.[1] This was the Microgravity Science Laboratory (MSL-1) Spacelab mission, and it was cut short due to problems with one of the Shuttle's three fuel cell power generation units. Mission duration was 95 hours and 12 minutes, traveling 1.5 million miles in 63 orbits of the Earth.
STS-94 took place from July 1–17, 1997.[1] This was a re-flight of the Microgravity Science Laboratory (MSL-1) Spacelab mission, and focused on materials and combustion science research in microgravity. Mission duration was 376 hours and 45 minutes, traveling 6.3 million miles in 251 orbits of the Earth.
STS-104 took place from July 12–24, 2001.[1] This was the 10th mission to theInternational Space Station (ISS). During the 13-day flight, the crew conducted joint operations with the Expedition-2 crew. Gernhardt was one of two astronauts to perform three spacewalks to install the joint airlock "Quest" (including the first US spacewalk from the ISS), and to outfit it with four high-pressure gas tanks. The mission was accomplished in 200 Earth orbits, traveling 5.3 million miles in 306 hours and 35 minutes.
He enjoys running, swimming, flying, fishing, andscuba diving.[1]
This article incorporatespublic domain material from websites or documents of theNational Aeronautics and Space Administration.