Away Teams & Field Reports

Tricorder Tech: ESA CAVES 2026 Cavenauts Use An Electronic FieldBook

By Keith Cowing
Status Report
ESA
June 25, 2026
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Tricorder Tech: ESA CAVES 2026 Cavenauts Use An Electronic FieldBook
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Astronauts Tracy Dyson (NASA), Rosemary Coogan (ESA) and Ayu Yoneda (JAXA) measuring water parameters and recording them in the Electronic FieldBook during ESA CAVES2026 course.

ESA CAVES (Cooperative Adventure for Valuing and Exercising human behaviour and performance Skills) is an ESA astronaut training program.

The three-week course prepares astronauts to work safely and effectively in multicultural teams in an environment where safety is critical.

As they explore caves they encounter caverns, underground lakes and strange microscopic life. They test new technology and conduct science – just as if they were living on the International Space Station.

The five astronauts have to rely on their own skills, teamwork and ground control to achieve their mission goals – the course is designed to foster effective communication, decision-making, problem-solving, leadership and team dynamics.

Meet the ‘cavenauts’:

Rosemary Coogan, ESA astronaut 🇬🇧
John McFall, member of ESA’s astronaut reserve 🇬🇧
Tracy Dyson, NASA astronaut 🇺🇸
Ben Bailey, NASA astronaut candidate 🇺🇸
Ayu Yoneda, JAXA astronaut 🇯🇵

Astrobiology, spelunking,

Biologist, Explorers Club Fellow, ex-NASA Space Biologist and Payload integrator, Editor of NASAWatch.com and Astrobiology.com, Lapsed climber, Explorer, Synaesthete, Former Challenger Center board member 🖖🏻