Hans Schlegel and Philippe Perrin, have which occupation in common?
Hans Schlegel: Hans Wilhelm Schlegel (Überlingen, 3 August 1951) is a German physicist, an ESA astronaut, and a veteran of two NASA Space Shuttle missions. Philippe Perrin: Philippe Perrin (Colonel, French Air Force) (born January 6, 1963) is a French test pilot and former CNES and European Space Agency astronaut.
astronaut