From caves to the cosmos | Space photo of the day for Oct. 14, 2025

ESA astronaut Marco Sieber's recent CAVES training in the Apennines of Italy highlights the importance of preparing for future space missions. This unique training program, which takes place in underground caves, helps astronauts develop essential skills for exploring other planets. By simulating the challenges of space exploration in such environments, Sieber and his colleagues are better equipped to handle the unknowns of the cosmos. This initiative not only enhances astronaut training but also emphasizes the significance of teamwork and problem-solving in extreme conditions.