Gibbons was selected by the CSA in 2017 as part of its
fourth astronaut recruitment campaign, joining
Joshua Kutryk in the 2017 CSA Group. She was the third female astronaut candidate chosen by the CSA, following
Roberta Bondar and
Julie Payette. At 28 years old, she became the youngest astronaut candidate ever selected by the agency. In July 2017, Gibbons relocated to Houston, to complete the two-year
NASA Astronaut Candidate Training Program at the
Johnson Space Center, training alongside the
2017 NASA astronaut class. She graduated in 2020. In 2020, Gibbons was certified as a
capsule communicator (CAPCOM). She first served as CAPCOM during
Expedition 63 and supported a series of spacewalks in 2021 to upgrade the International Space Station's solar arrays. She was also assigned to support launch operations as an astronaut support person responsible for final spacecraft configuration and served as CAPCOM during the mission. Artemis II was a crewed test flight of the Orion spacecraft on the Space Launch System (SLS), that lifted off on 1 April 2026. == References ==