Brian John O'BrienAOFTSE (27 February 1934 – 7 August 2020) was an Australian physicist and space scientist. He is best known for his "research into lunar dust and the challenges it presents for exploration of the Moon." He "highlighted how hazardous it was for astronauts and their equipment."[1] Five experiments designed by him were placed on the Moon by the Apollo 11 Mission. One measured radiation, the others were concerned with Moon dust.[2]
After studying physics at Sydney University, O'Brien worked as a physicist in Antarctica. There he saw the aurora australis, which led to his space career.[4]