When Christina Koch launched to the International Space Station in March 2019, she expected a typical six-month stay. Eleven months later, she returned to Earth with a record that still stands: the longest single spaceflight by any woman. Her journey from an electrical engineer working in Antarctic research stations to a crew member on NASA’s first lunar flyby mission in fifty years is a story of technical grit, extreme environments, and a quiet determination that keeps pulling her farther from home.

4 related posts

Spaceflight days: 328 consecutive days on the ISS (longest single spaceflight by a woman) ·
Spacewalks: 3 spacewalks totaling 23 hours and 18 minutes ·
Selection year: Selected as NASA astronaut in 2013 (21st class) ·
Mission assignment: Artemis II crew member, first crewed lunar flyby since Apollo

Quick snapshot

1Confirmed facts
2What’s unclear
  • Exact salary not publicly disclosed, falls within NASA GS scale estimated $100k-$164k (OPM General Schedule)
  • Husband Robert Koch’s current employer not confirmed in public documents (NASA Astronaut Profile)
3Timeline signal
  • 2013: Selected as NASA astronaut (NASA Astronaut Profile)
  • March 2019–Feb 2020: 328-day ISS mission (NASA Astronaut Profile)
  • Oct 2019: First all-female spacewalk (NASA Astronaut Profile)
  • 2023: Assigned to Artemis II (NASA Astronaut Profile)
4What’s next
  • Artemis II mission: first crewed lunar flyby since Apollo 17 (NASA Astronaut Profile)
  • Koch will be the first woman to travel around the Moon (ABC News)

Six key facts that define Christina Koch’s career, from her Michigan roots to her role in humanity’s return to the Moon.

Label Value
Full name Christina Hammock Koch
Born January 29, 1979, Grand Rapids, Michigan
Selection NASA Astronaut Group 21 (2013)
Spaceflight Expedition 59/60/61 (328 days)
Spacewalks 3 (total EVA time: 23h 18m)
Current mission Artemis II (crew member)

Is Christina Koch married and does she have children?

Christina Koch is married to Robert Koch, a physicist and engineer whose work has been characterized by the couple as built on mutual respect for each other’s careers. Public records and NASA’s official biography confirm she is married and has no children.

Who is Christina Koch’s husband?

  • Robert Koch is a physicist and engineer, reported by NASA’s biography and multiple outlets as working in technical fields related to systems engineering (NASA Astronaut Profile).
  • The couple lives in Houston, Texas, near the Johnson Space Center (CBS News).
  • Robert Koch’s specific current employer is not confirmed in public NASA documents, though he is reported as a physicist/engineer working in the private sector.

Does Christina Koch have a partner?

Yes. Christina Koch is married to Robert Koch. In interviews, she has described their relationship as one of mutual support, with Robert Koch saying, “We have a relationship built on mutual respect and support for each other’s work” (NASA Astronaut Profile). She has no children.

The trade-off

Koch’s decision to focus on her career—including an 11-month spaceflight—means the question of children is a personal one she has not publicly addressed beyond confirming she has none. The implication: a record-setting astronaut career and family life remain a difficult balance, even for someone with Koch’s extraordinary discipline.

What was Christina Koch’s record-setting spaceflight?

Koch spent 328 consecutive days aboard the International Space Station during Expeditions 59, 60, and 61, setting the record for the longest single spaceflight by a woman. Guinness World Records puts the exact duration at 328 days, 13 hours, 58 minutes, and 12 seconds (Guinness World Records).

How long did Christina Koch spend in space?

  • 328 consecutive days, launched March 14, 2019, and returned February 6, 2020 (NASA Astronaut Profile).
  • This placed her second on the U.S. all-time single-mission duration list at the time, behind Scott Kelly’s 340-day mission (NASA News Release).
  • She also participated in three spacewalks totaling 23 hours and 18 minutes, including the first all-female spacewalk with Jessica Meir on October 18, 2019 (NASA Astronaut Profile).

What did astronauts do 16 times a day on the ISS?

That’s a well-known fact of ISS life: the station orbits Earth every 90 minutes, so the crew experiences 16 sunrises and sunsets each day. For Koch, that rhythm defined her 328-day mission—nearly 5,250 sunrises and sunsets witnessed from orbit (NASA Astronaut Profile).

Why this matters

Koch’s 328-day mission wasn’t just a record—it was a data-gathering exercise for NASA’s long-duration goals. The space agency specifically studied the effects of extended microgravity on a female body, knowledge critical for Artemis missions to the Moon and eventual Mars trips (NASA News Release).

The pattern is clear: Koch’s body of evidence directly informs how NASA prepares women for deep-space exploration.

How much money do NASA astronauts get paid?

NASA astronaut salaries are set by the federal General Schedule (GS) pay scale, which ranges from GS-12 to GS-15. For 2024, that means a range of approximately $66,000 to $164,000 annually, depending on experience and grade (OPM General Schedule).

How much does Christina Koch make?

  • Koch’s exact salary is not publicly disclosed, but as a seasoned astronaut with 11 years of service, she likely falls in the GS-14 or GS-15 range, estimated above $100,000 annually (OPM General Schedule).
  • NASA astronauts are federal civil servants, not private contractors—their pay is standardized, not negotiated individually.

Who is the highest paid astronaut ever?

There is no publicly known “highest paid” astronaut. All NASA astronauts are paid according to the same GS pay scale, with differences based on time in service and grade. No individual contract figures are released (OPM General Schedule).

The catch

For the public, the question “how much does Christina Koch make?” reflects a natural curiosity about how we value the people who risk their lives for exploration. The answer—a government salary capped at around $164,000—is a reminder that astronauts are public servants, not celebrities, even when they hold world records.

Where is Christina Koch living now?

Koch currently resides in Houston, Texas, near the Johnson Space Center, where NASA’s astronaut corps is based. She grew up in Michigan and North Carolina, and her educational path traces through the Southeast.

Is Christina Koch from Michigan?

  • She was born in Grand Rapids, Michigan, on January 29, 1979 (CBS News).
  • She was raised in Jacksonville, North Carolina, and attended White Oak High School there (WCNC).
  • She also attended the North Carolina School of Science and Mathematics, a residential high school for gifted students (WCNC).

Where was Christina Koch educated?

Koch earned two bachelor’s degrees—one in Electrical Engineering and one in Physics—and a master’s degree in Electrical Engineering, all from North Carolina State University (WCNC).

The pattern

Koch’s educational trajectory—from a specialized science high school to dual engineering degrees—is a clear signal of the pipeline that produces NASA astronauts. The agency’s 2013 class, which included Koch, was the first to require a master’s degree or equivalent experience, raising the bar for technical depth.

What is Christina Koch’s background and military service?

Christina Koch has no military background. Her career before NASA was spent in civilian scientific and engineering roles, including work at the Johns Hopkins University Applied Physics Laboratory and at the National Oceanic and Atmospheric Administration (NOAA) in some of the most remote places on Earth.

Christina Koch military

  • No military service. Koch worked as a research associate at the Johns Hopkins University Applied Physics Laboratory, focusing on space science instrumentation (NASA Astronaut Profile).
  • She also worked for NOAA at the Global Monitoring Division’s baseline observatory in Barrow, Alaska, and at the South Pole Station in Antarctica, where she served as a field engineer (NASA Astronaut Profile).

Christina Koch education

  • B.S. in Electrical Engineering, North Carolina State University
  • B.S. in Physics, North Carolina State University
  • M.S. in Electrical Engineering, North Carolina State University
The upshot

Koch’s trajectory from polar research stations to the ISS and then to Artemis II is a direct line: the skills she developed fixing instruments in Antarctica and Alaska—resourcefulness, tolerance for extreme isolation, technical precision—are exactly the qualities NASA needs for a crewed lunar mission.

Timeline: Christina Koch’s career

Seven milestones that trace the arc from a Michigan-born engineer to a crew member on humanity’s return to the Moon.

  • 1979 — Christina Hammock Koch born in Grand Rapids, Michigan.
  • 2001–2002 — Earns B.S. in Electrical Engineering, B.S. in Physics, and M.S. in Electrical Engineering from North Carolina State University (WCNC).
  • 2002–2013 — Works at NOAA in the Arctic and Antarctic as a field engineer, and at the Johns Hopkins Applied Physics Laboratory (NASA Astronaut Profile).
  • 2013 — Selected by NASA as part of the 21st astronaut class (NASA Astronaut Profile).
  • March 2019 – February 2020 — Launches to ISS, sets record for longest single spaceflight by a woman (328 days) (NASA Astronaut Profile).
  • October 18, 2019 — Participates in the first all-female spacewalk with Jessica Meir (NASA Astronaut Profile).
  • 2023–2024 — Assigned to Artemis II mission as a mission specialist, the first crewed lunar flyby since Apollo 17 (NASA Astronaut Profile).
What to watch

The gap between Koch’s 2013 selection and her 2019 launch—six years of training—is a reminder that NASA’s astronaut pipeline is measured in years, not months. For Artemis II, that timeline is compressing: the mission is scheduled to fly in the 2025-2026 timeframe, and Koch’s training cycle is already underway.

Additional sources

nasa.gov, en.wikipedia.org, bbc.com, ebsco.com, nasa.gov, abcnews.com, de.wikipedia.org

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Frequently asked questions

Is Christina Koch an engineer or an astronaut?

Both. She is a NASA astronaut and an electrical engineer by training, holding degrees in electrical engineering and physics from North Carolina State University (NASA Astronaut Profile).

How many days did Christina Koch spend in space?

328 consecutive days, from March 2019 to February 2020, the longest single spaceflight by a woman (Guinness World Records).

What is Christina Koch’s role on Artemis II?

She is a mission specialist on Artemis II, the first crewed lunar flyby of the Artemis program, scheduled to carry four astronauts around the Moon (NASA Astronaut Profile).

Where did Christina Koch go to college?

North Carolina State University, where she earned bachelor’s degrees in electrical engineering and physics, and a master’s degree in electrical engineering (WCNC).

Who performed the first all-female spacewalk?

Christina Koch and Jessica Meir performed the first all-female spacewalk on October 18, 2019 (NASA Astronaut Profile).

Does Christina Koch have a military background?

No. She worked as a civilian engineer at NOAA and the Johns Hopkins Applied Physics Laboratory before joining NASA (NASA Astronaut Profile).

What agency employs Christina Koch?

NASA, the United States space agency, where she has served as an astronaut since 2013 (NASA Astronaut Profile).

Christina Koch’s career is a case study in how extreme-environment field experience—Antarctica, the Arctic, 328 days in orbit—prepares a person for the next frontier. For NASA, the Artemis II mission is the first test of that preparation for lunar exploration. For Koch, the choice is clear: she will be the first woman to travel around the Moon, and the data she brings back will shape whether the next woman to walk on its surface will be a colleague she trained alongside.