EntityQ725090· pop 7· linked from 20 articlesGordon PettengillSign in to saveAmerican radio astronomer and planetary physicist (1926-2021)ConnectionsMassachusetts Institute of TechnologyEntityastronomyEntityWorld War IIConceptMarsEntityVenusEntityMercuryEntityPuerto RicoConceptRhode IslandEntityInternational Standard Book NumberEntityProvidenceEntityWayback MachineEntitydigital object identifierEntityApollo programConceptCornell UniversityEntitySputnik 1EntityUniversity of California, BerkeleyEntityUnited States ArmyEntityOCLC, Inc.Entityamateur radioEntityConcordEntityCategories1926 births2021 deathsAmateur radio peopleAmerican astronomersMembers of the United States National Academy of SciencesMilitary personnel from MassachusettsMIT Lincoln Laboratory peopleMIT School of Science alumniPeople from Dedham, MassachusettsScientists from MassachusettsScientists from Providence, Rhode IslandUnited States Army personnel of World War II