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Introduction
Christina Koch made history on April 10, 2026. She became the first woman to fly around the Moon as a mission specialist on Artemis II. Before this historic flight, Koch already held the record for the longest single spaceflight by a woman – 328 consecutive days aboard the International Space Station (ISS). This profile explores her journey: from electrical engineer to NASA astronaut, her record‑breaking mission, and what her Artemis II achievement means for women in space exploration.
For a complete overview of the Artemis II mission, read our main guide: Artemis II 2026: Historic Moon Mission .
For more on the entire crew, see our Artemis II crew profiles .
Early Life and Education
Christina Hammock Koch was born on January 29, 1979, in Grand Rapids, Michigan. She grew up in Jacksonville, North Carolina. From a young age, she dreamed of becoming an astronaut. She earned a Bachelor of Science in Electrical Engineering and Physics from North Carolina State University (NCSU) in 2001. She then completed a Master of Science in Electrical Engineering at NCSU in 2002.
Before joining NASA, Koch worked as an electrical engineer at the Goddard Space Flight Center. She also served as a research associate in the United States Antarctic Program. There, she spent over a year living and working in remote stations, including the South Pole. Consequently, she developed skills in surviving extreme environments – experience that later proved invaluable for spaceflight.
Becoming a NASA Astronaut
NASA selected Koch as an astronaut candidate in 2013 (Group 21). She completed her training in 2015, qualifying for spaceflight assignments. Her background in electrical engineering, Antarctic research, and remote field work made her a strong candidate for long‑duration missions.
For more on NASA’s astronaut selection process, read our Artemis II crew selection guide .
Record‑Breaking 328‑Day ISS Mission
Koch launched to the International Space Station on March 14, 2019, aboard Soyuz MS‑12. She returned to Earth on February 6, 2020, after spending 328 days in space – the longest single spaceflight by any woman. During her mission, she:
- Participated in six spacewalks, totaling 42 hours and 15 minutes.
- Performed the first all‑female spacewalk with Jessica Meir on October 18, 2019.
- Conducted hundreds of scientific experiments, including studies on plant growth, fluid physics, and human physiology.
- Set a record for the most time in space by a female astronaut, surpassing Peggy Whitson’s previous record.
Her extended mission provided valuable data on the effects of long‑duration spaceflight on the human body. This research directly supports future lunar and Mars missions.
Role on Artemis II – First Woman Around the Moon
On April 3, 2023, NASA announced that Christina Koch would serve as a mission specialist on Artemis II, the first crewed lunar flyby in over 50 years. Her responsibilities included:
- Monitoring life support systems.
- Conducting science experiments during the 10‑day mission.
- Serving as a backup communicator with mission control.
- Documenting the mission through photos and video.
On April 6, 2026, Koch became the first woman to fly around the Moon when Orion made its closest approach at 4,067 miles above the lunar surface. After splashdown on April 10, she told reporters: “This isn’t just my achievement. It belongs to every girl who ever looked up at the Moon and wondered.”
For a detailed mission timeline, see our Artemis II mission timeline .
The Significance of a Woman Around the Moon
Koch’s flight carries deep symbolic weight. Only 12 humans have ever walked on the Moon – all men. No woman has ever traveled beyond low Earth orbit until now. By sending Koch around the Moon, NASA sends a clear message: space exploration belongs to everyone.
The Artemis program explicitly aims to land the first woman and first person of color on the lunar surface with Artemis III (targeting 2028). Koch’s flight serves as a crucial stepping stone toward that goal. Moreover, her visibility inspires young girls to pursue STEM careers.
For more on Artemis III, see our Artemis III preview .
Comparison Table – Christina Koch vs Other Record‑Holding Women Astronauts
| Astronaut | Country | Notable Record | Days in Space (single flight) | Lunar mission? |
|---|---|---|---|---|
| Christina Koch | USA | First woman around the Moon, longest female single spaceflight | 328 days | ✅ Artemis II |
| Peggy Whitson | USA | Most cumulative days in space by a woman (675 days) | 289 days (first flight) | ❌ |
| Jessica Meir | USA | First all‑female spacewalk with Koch | 205 days | ❌ |
| Sally Ride | USA | First American woman in space (1983) | 6 days | ❌ |
| Valentina Tereshkova | USSR | First woman in space (1963) | 3 days | ❌ |
Real‑World Applications of Koch’s Achievements
- For women in STEM: Koch’s journey proves that women can reach the highest levels of space exploration.
- For NASA: Her success helps meet the Artemis program’s diversity goals and demonstrates the value of inclusion.
- For educators: Koch’s story serves as a powerful teaching tool for inspiring the next generation.
- For international cooperation: Her mission highlights the importance of diverse perspectives in solving complex problems.
FAQ Section
Q1: What is Christina Koch famous for?
A: Christina Koch holds two major records: the longest single spaceflight by a woman (328 days) and being the first woman to fly around the Moon on Artemis II.
Q2: How long did Christina Koch spend in space before Artemis II?
A: She spent 328 consecutive days aboard the International Space Station from March 2019 to February 2020 – a record for any woman.
Q3: Did Christina Koch walk on the Moon?
A: No. Artemis II was a lunar flyby, not a landing. However, NASA has selected her as a candidate for future lunar landing missions, including possible Artemis III or later.
Q4: Why is her flight significant for women in space?
A: Before Koch, no woman had ever traveled beyond low Earth orbit. Her flight breaks a 50‑year barrier and inspires a new generation of female astronauts.
Conclusion
Christina Koch’s journey from electrical engineer to record‑setting astronaut to first woman around the Moon is a testament to perseverance, skill, and the power of representation. Her 328‑day ISS mission proved that women can thrive in long‑duration spaceflight. Her Artemis II flight opened the lunar frontier to half of humanity. As NASA looks toward a permanent lunar base and Mars, Koch’s legacy will inspire countless others to reach for the stars.
Next step: Discover NASA’s plan to land the first woman and first person of color on the Moon in our Artemis III preview .
