Follow the water

NASA astronaut candidate Ben Bailey takes a photo of John McFall, a member of ESA’s astronaut reserve, whilst he takes measurements of the water in the cave.

Five explorers from three space agencies have successfully completed ESA’s CAVES training course in Italy in June 2026.

For two intense weeks, deep below the Apennine Mountains, caves became their training laboratory. Trainees had to adapt to an alien underworld that shares many analogies with a space mission: isolation, confinement and limited supplies.

Participants in the eighth edition were ESA astronaut Rosemary Coogan, John McFall, member of ESA’s astronaut reserve and the Fly! project, NASA astronaut Tracy Dyson, NASA astronaut candidate Ben Bailey and JAXA astronaut Ayu Yoneda.

CAVES offers a unique opportunity for spacefarers to become proficient explorers by experiencing the physical and psychological extremes of an unknown environment.