Ulf Merbold and Lodewijk van den Berg, both flew in ?
Lodewijk van den Berg Lodewijk van den Berg (] ; born March 24, 1932) is a Dutch American chemical engineer, specializing in crystal growth, who flew on a 1985 Space Shuttle "Challenger" mission as a Payload Specialist.
Tomas Van Den Spiegel Tomas Van Den Spiegel (born 10 July 1978 in Ghent, Belgium) is a Belgian former professional basketball player and the current president of ULEB. At a height of 2.14 m (7 ft ¼) tall, he played at the center position.