Born-Digital or AnalogAnalogTranscriptHigh altitude observatory TWA uses information in weather forecasting. Post 0 13, 1954 p.20 colorado university Harvard withdraws as observatory sponsor - CU to assume sole management. Post O 21, 1954 p.26 Walter Orr Roberts, director, said CU signal to launch world's 1st earth-girdling rocket satellites. Post Jy 30, 1955 p.3 Colorado's famous "secret weapon" of World War II, coronagraph, retired. Post Ag 4, 1955 p.14 CU launches study of sun's effect on world weather under Walter Roberts. Post Ap 18, 1956 p.41CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
High altitude observatory, [309147]. Denver Public Library Digital Collections, accessed 17/02/2026, https://digital.denverlibrary.org/nodes/view/1461963
