Who flew on a 1985 Space Shuttle "Challenger" mission as a Payload Specialist, Claude Nicollier or  Lodewijk van den Berg?
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.
Albert van den Berg (physicist) Albert van den Berg (born 20 September 1957) is a Dutch physicist who works on nanotechnology-miniaturization in physics, chemistry, biology and biotechnology (nanofluidics, nanosensors, "Lab on a chip" (LOC)).