CAVES is a European Space Agency astronaut training course in which international astronauts train in a space - analogue cave environment .
CAVES is an acronym for Cooperative Adventure for Valuing and Exercising human behaviour and performance Skills .
CAVES , an acronym for Cooperative Adventure for Valuing and Exercising human behaviour and performance Skills , is a European Space Agency astronaut training course in which international astronauts train in a space - analogue cave environment .