Descriptive Entry

This accession consists of records created and maintained by Robert A. Craddock, Geologist, 1988- , documenting his activities at the Center for Earth and Planetary Studies. Topics covered include Mars geology, conferences, research, fieldwork, and collaborations with other professionals and organizations. Materials include correspondence, field notes, proposals, scientific illustrations, photographs, negatives, maps, notes, graphs, memoranda, slides, transparencies, and related material. Some materials are in electronic format. Some material predates his arrival at the National Air and Space Museum.