Which of these men who have been to space is older, Ivan Bella or Jean-Jacques Favier?
Ivan Bella Ivan Bella (born 25 May 1964 in Brezno, Czechoslovakia (now Slovakia)) is a Slovak Air Force officer who became the first Slovak citizen to fly in space. He participated in an eight-day joint Russian-French-Slovak mission to the Mir space station in 1999.
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.