Jessica Meir
Physiologist and astronaut expanding the possibilities of research and representation in space
Jessica Meir, born in 1977, built a scientific career connecting deep water, thin air and life in Earth orbit. The American astronaut, whose father was Jewish and Israeli and whose mother was Swedish, reached space through research into how living organisms cope with extreme conditions. Her path brought a biologist’s questions into demanding operational environments.
Understanding life at its limits
Raised in Caribou, Maine, Meir studied biology at Brown University, space studies at the International Space University and marine biology for her doctorate at the Scripps Institution of Oceanography. She investigated oxygen use in diving emperor penguins and elephant seals, then studied the physiology of high-flying bar-headed geese. These projects asked how bodies sustain activity when oxygen is scarce and what the differences between species reveal about adaptation.
Before joining NASA’s astronaut corps, she also researched the effects of spaceflight on the human body and participated in the underwater NEEMO program. Such work demanded patient observation as well as reliability, adaptability and close cooperation in confined environments.
Research, spacewalks and command
NASA selected Meir as an astronaut in 2013. She served aboard the International Space Station in 2019–2020. On October 18, 2019, she and Christina Koch performed the first all-woman spacewalk: an essential maintenance assignment that also became a milestone in women’s participation in space exploration. In February 2026, Meir launched toward the station again as commander of Crew-12.
A connection carried across borders
Meir has spoken publicly about her cultural connection to Judaism and her family ties to Israel. Her career offers an accessible example of Jewish identity within international scientific life. It also shows young people that exploration depends on years of preparation and on teams whose members bring different backgrounds and complementary skills.
Why this legacy belongs in Moreshet
Moreshet includes Jessica Meir for the substance of her scientific and operational work and for the possibilities her example makes visible. Her story at Moreshet.com connects careful research with the courage to work in unfamiliar environments. She demonstrates how a childhood ambition can develop into useful knowledge, responsible command and participation in a shared human undertaking.
