Megan McArthur is a NASA astronaut and oceanographer known for spaceflight missions and extravehicular activity experience. This profile summarizes her background, training, and verified mission history to provide a clear, durable reference. It focuses on professional qualifications, program participation, and role responsibilities without speculative commentary, supporting long-term usefulness for research and informational needs.
Early Background and Education
Megan McArthur holds a Bachelor of Science degree in biology from the University of California, San Diego, and a Master of Science and PhD in oceanography from the University of Hawaiʻi at Mānoa. Her academic training emphasized marine biology and optical oceanography, providing a foundation that supported her selection in the astronaut candidate program. Advanced coursework and research in underwater habitats and ocean instrumentation informed her readiness for complex mission operations.
NASA Astronaut Selection and Training
NASA selected Megan McArthur as an astronaut candidate in 2000, and she completed training in 2001. The training curriculum included space shuttle and International Space Station systems, robotics, extravehicular activity (EVA) procedures, survival skills, and language preparation for international crew collaboration. Her technical assignments early in the program supported crew support and engineering duties, preparing her for later flight responsibilities.
Training Modules and Key Competencies
- Spacecraft systems and interfaces for shuttle and ISS
- Robotic arm operations, including Canadarm and Canadarm2
- EVA protocols, tools, and safety procedures
- Emergency response, survival, and team coordination
Space Missions and Flight Experience
Megan McArthur flew aboard the Space Shuttle Atlantis as a mission specialist on STS-125 in 2009, serving as the lead EVA crewmember. The mission serviced the Hubble Space Telescope, performing multiple spacewalks to upgrade instruments and replace key components. She later launched to the International Space Station aboard SpaceX Crew Dragon during NASA’s Crew-2 mission in 2021, serving as a flight engineer.
Mission Summary Table
| Mission | Vehicle | Duration | Role | Key Objectives |
|---|---|---|---|---|
| STS-125 | Space Shuttle Atlantis | May 11–24, 2009 (13 days) | Mission Specialist, Lead EVA Crewmember | Hubble Space Telescope servicing, 5 EVAs |
| Crew-2 | SpaceX Crew Dragon | April 23–November 9, 2021 (199 days) | Flight Engineer | ISS expeditions, scientific research, cargo operations |
Extravehicular Activity Experience
Across two spaceflights, Megan McArthur accumulated multiple EVAs supporting critical assembly and maintenance tasks. During STS-125, she performed five spacewalks to replace instruments such as the Wide Field Camera 3 and the Cosmic Origins Spectrograph, and to install new gyroscopes and battery modules. On the International Space Station during Crew-2, she contributed to maintenance work and equipment upgrades, demonstrating proficiency in both shuttle-class and ISS-class EVA procedures.
EVA Highlights
- Five EVAs on STS-125, totaling over 30 hours in space
- Contributions to ISS system upgrades and payload support during Crew-2
- Use of simplified aid for EVA rescue and safety tether protocols
Current Roles and Public Engagement
Within NASA, Megan McArthur has taken on assignments that leverage her flight and engineering experience. She has supported crew office operations, participated in training development for new astronauts, and contributed to public outreach initiatives that highlight human spaceflight achievements. Her ongoing involvement in program reviews and operational assessments reflects a continued commitment to exploration and safety.
Legacy and Assessments
Megan McArthur’s career combines detailed technical preparation with hands-on experience in both shuttle and commercial crew environments. Her work on Hubble servicing demonstrated precise EVA execution under complex constraints, while her ISS mission illustrated the long-duration demands of modern expedition operations. Independent assessments and peer evaluations consistently cite her technical accuracy, team integration, and adherence to procedural standards.
Frequently Asked Questions
- What is Megan McArthur known for? She is known for Hubble Space Telescope servicing missions, EVA leadership, and contributions to ISS operations via NASA’s Crew-2 mission.
- How many spaceflights has she flown? She has flown on two spaceflights: STS-125 (Space Shuttle) and Crew-2 (SpaceX Crew Dragon).
- Does she hold any leadership roles within NASA? She has carried lead EVA responsibilities, supported crew training, and contributed to program review and operational assessments.
- What are her educational credentials? She holds a BS in biology from UC San Diego and MS and PhD degrees in oceanography from the University of Hawaiʻi at Mānoa.
- Is she involved in future mission planning? She continues to support NASA operations, training, and assessment activities aligned with long-term exploration goals.
Tags
Megan McArthur, NASA astronaut, space shuttle, Hubble servicing, Crew Dragon, EVA, oceanography, astronaut biography