Lawrence Grossman is a pioneer in the study of the minerals that condensed from gases in the early solar system. His research is aimed at learning more about how the sun and planets formed approximately 4.5 billion years ago. Grossman and his associate, Steven Simon, were members of the Stardust Preliminary Examination Team. The team produced a general description of samples returned to Earth in January 2006 from Comet Wild-2 by NASA's Stardust spacecraft. Grossman and Simon also analyzed the meteorites that showered Park Forest, Ill., and nearby communities on the evening of March 23, 2006. Asteroid 4565 Grossman was named in his honor in 2000. The mineral grossmanite, discovered in the Allende meteorite, was named after him in 2009.