Named in honor of William I. McLaughlin (1935– ) on the occasion of his retirement from the Jet Propulsion Laboratory, where he made innovative contributions to many projects, including Viking, Seasat, the Infrared Astronomical Satellite and Voyager (Uranus), and to the management of two technical sections. He also served as deputy manager of the astrophysics and fundamental physics program office. For 14 years McLuaghlin wrote a column in Spaceflight called “Space at JPL”. He takes a special interest in philosophy, mathematics, astronomy and epistemology, as well as space exploration and has written numerous papers. (M 34340) _ _.