Which of these men who have been to space is older, Ivan Bella or Jean-Jacques Favier?
Jean-Jacques Favier Jean-Jacques Favier (Born April 13, 1949) is a French engineer and a former CNES astronaut who flew aboard the STS-78 NASA Space Shuttle mission. Favier was due to fly aboard the Columbia mission in 2003, but later signed out of the mission.
Jacques Villiers Jacques Villiers (26 August 1924 – 13 March 2012) was a French aerospace engineer and public servant. He was the founder of the Centre d'études de la navigation aérienne (French air navigation center) and co-founder of the CAUTRA system ("Système de contrôle automatisé du trafic aérien " – automated air traffic control system), the computer system of the French air traffic management.