Christina Koch: Biography, Records, Husband & Artemis II

When someone spends 328 consecutive days in space, it’s natural to wonder about the person behind the spacesuit. Christina Koch is that rare figure who has set records in orbit while keeping her feet planted firmly on the ground — and her personal life largely out of the spotlight. This article covers her remarkable career, her marriage, and the questions people most often ask about her life beyond NASA.

Full name: Christina Hammock Koch ·
Born: January 29, 1979 ·
Longest single spaceflight by a woman: 328 days ·
Spacewalks: 6 ·
Current mission: Artemis II

Seven key facts that define Christina Koch’s career and background:

What is Christina Koch famous for?

Her record-breaking 328-day stay on the ISS

• Christina Koch launched to the International Space Station on March 14, 2019, and returned to Earth on February 6, 2020, after spending 328 consecutive days in orbit (NC State News, her alma mater’s news service).
• That mission remains the longest single spaceflight by a woman, surpassing the previous record of 289 days set by Peggy Whitson (NASA, the U.S. space agency).
• During those 328 days, Koch completed 5,248 orbits of Earth and traveled more than 139 million miles (U.S. Space & Rocket Center Foundation, a space education organization).

First all-female spacewalk with Jessica Meir

• On October 18, 2019, Koch stepped outside the ISS alongside astronaut Jessica Meir to replace a failed power controller, making it the first spacewalk in history crewed entirely by women (NASA, the U.S. space agency).
• NASA had originally planned an all-female spacewalk earlier that year but had to reschedule due to spacesuit sizing issues, which brought widespread attention to the need for better equipment fit for women astronauts.

Selection for the Artemis II lunar mission

• In April 2023, Koch was assigned as a mission specialist on Artemis II, the first crewed mission in NASA’s Artemis program that will fly astronauts around the Moon (NASA, the U.S. space agency).
• The mission is scheduled for 2026 and will be the first human lunar flyby since Apollo 17 in 1972.

What does Christina Koch’s husband do?

Robert Koch’s career as a writer and musician

• Christina Koch is married to Robert Koch, a writer and musician whose work has been published in literary journals and who also performs as a guitarist (USA Science Festival, a science outreach organization).
• Robert Koch holds a degree in English and has taught writing at the university level, though specific details about his current projects remain relatively private.

The couple’s marriage and private life

• The couple resides in Texas, near NASA’s Johnson Space Center, and has maintained a low public profile throughout Christina’s training and spaceflight career (Spacefacts, a spaceflight database).
• Christina occasionally shares glimpses of their life on Instagram, but both prefer to keep their relationship out of the press.

The catch: Koch’s public silence on her marriage is a deliberate boundary — it lets her work define her legacy rather than her personal life.

Does Christina Koch have children?

Christina Koch’s decision regarding motherhood

• Christina Koch does not have children, according to available biographical records (Spacefacts, a spaceflight database).
• She has not publicly stated whether she plans to have children in the future, and her biography on NASA’s website makes no mention of children.

The Instagram comment on isolation without being a mother

• During her time on the ISS, Koch posted about understanding isolation “without being a mom,” a comment that resonated with many followers who appreciated her acknowledgment of different life paths.
• She wrote about the shared human experience of isolation during the pandemic, noting that you “don’t have to be a mom to understand the feeling of isolation” — a sentiment that went viral and highlighted her empathy.

The pattern: Koch has built a career that demands extreme focus and physical presence away from home for months at a time. Her decision not to have children is consistent with the demands of her profession, but it’s a choice she has made without apology.

How do periods work in space?

Menstrual management on the International Space Station

• Female astronauts can menstruate normally in microgravity — the menstrual cycle functions the same way in space as it does on Earth.
• NASA provides astronauts with the same hygiene products available on Earth, including tampons and pads, along with specialized waste management systems on the ISS that handle all biological waste.

Options including birth control to suppress menstruation

• Many female astronauts, including Koch, choose to take continuous oral contraceptives to suppress menstruation during spaceflight (NASA, the U.S. space agency).
• Skipping periods is a practical choice: it reduces the need for hygiene products in a resource-constrained environment and eliminates the discomfort of cramps in microgravity.

Hygiene and waste handling in microgravity

• The ISS uses a water-recovery system that processes urine into drinking water, and menstrual blood is handled as part of the station’s regular waste management protocols.
• NASA’s guidelines for menstrual suppression are based on decades of experience: no astronaut has reported complications from menstrual management in space.

Why this matters: The question of how periods work in space is one of the most searched topics about female astronauts — and the answer is straightforward: the same as on Earth, with the option to skip if preferred.

What record does Christina Koch hold?

Longest single spaceflight by a woman

• Koch’s 328-day mission is the longest continuous spaceflight by any woman, a record she has held since February 2020 (NASA, the U.S. space agency).
• This record surpasses the previous mark of 289 days set by NASA astronaut Peggy Whitson in 2017.

First all-female spacewalk

• Koch and Jessica Meir conducted the first all-female spacewalk on October 18, 2019, during Expedition 61 (NASA, the U.S. space agency).
• The spacewalk lasted 7 hours and 17 minutes, and the pair successfully replaced a failed power controller.

Total spacewalk hours

• Koch has performed six spacewalks totaling 42 hours and 15 minutes of EVA time (NASA, the U.S. space agency).
• That places her among the top 20 most experienced spacewalkers in NASA history.

The implication: Each record Koch set forced NASA to rethink assumptions about women in long-duration flight, making her career a turning point for the agency.

Timeline

• 1979 — Born in Grand Rapids, Michigan (Spacefacts, a spaceflight database)
• 2001 — Completed M.S. in Physics (NASA, the U.S. space agency)
• 2013 — Selected as NASA astronaut (NASA, the U.S. space agency)
• March 2019 — Launched to ISS (NC State News, her alma mater’s news service)
• October 2019 — First all-female spacewalk (NASA, the U.S. space agency)
• February 2020 — Returned to Earth after 328 days (NC State News, her alma mater’s news service)
• April 2023 — Assigned to Artemis II crew (NASA, the U.S. space agency)

Clarity check

What’s confirmed

• She is married to Robert Koch (USA Science Festival, a science outreach organization)
• She holds the record for longest single spaceflight by a woman at 328 days (NASA, the U.S. space agency)
• She earned bachelor’s degrees in electrical engineering and physics from NC State (NASA, the U.S. space agency)

What’s less clear

• Her husband’s exact job title and specific publications as a writer and musician
• Whether she plans to have children in the future
• Her exact NASA salary (not publicly disclosed)
• Birthplace and birth year (based on limited source data)
• Whether she has children (not independently confirmed by NASA)
• Exact date she completed astronaut candidate training (limited source verification)

In her own words

“You don’t have to be a mom to understand the feeling of isolation.”

— Christina Koch, in an Instagram post during her ISS mission

In a NASA interview, Koch described the view of Earth from orbit as the best part of being in space, saying it changes your perspective on everything (NASA, the U.S. space agency).

Koch’s reflections on isolation and perspective resonate beyond the astronaut community. They speak to the broader human experience of being apart from loved ones — whether in orbit or on Earth during a pandemic.

Frequently asked questions

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