During the following decade at UCB he and his students flew instruments on many of the early generation of space science missions, including the Interplanetary Monitoring Platforms (IMP) 1-6, OGO 5, Explorer 33 and 35, and Apollo 15 and 16 lunar sub-satellites. He was an author on about 200 scientific papers, and trained 24 graduate students at Berkeley.
He was director of the Space Sciences Laboratory (SSL) at UCB, and a member of the National Academy of Sciences.[4][5]