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Physics students assembling Explorer IV, The University of Iowa, 1958

Physics student Carl McIlwain in front of X-ray machine, The University of Iowa, May 29, 1963

Physics student Don Gurnett with Explorer IV, The University of Iowa, 1958

William Whelpley and George Ludwig with Iowa-made detectors for Explorer VII, The University of Iowa, September 24, 1964

Physics graduate student looking at data from shock and vibration test of satellite instruments, The University of Iowa, 1963

Physics students testing satellite, The University of Iowa, 1960s

Jupiter-C rocket photographs, 1958

Explorer I photographs, February 1958-January 1959

Explorer I photographs and drawings, 1958

Explorer I and Explorer 3 photographs, September 1968

James A. Van Allen journal, October 1955-March 1958

James A. Van Allen journal, December 1954-October 1955

James A. Van Allen lab journal, September 1959-January 1961

James A. Van Allen lab journal, March 1958-September 1959

Science in space, October 1959

Balloon launch, March 20, 1956

Balloon launched rockets, 1955 or 1956?

Cosmic ray experiment, September 1955

Rockoon laboratory, November 1, 1957

At the Frontier, March 1958

Venture Into Space, April 14, 1960

Exploring in space: the Van Allen Belts, 1963

Explorers 1, 3, 4 and 7 data signals and interviews, May 1960

Van Allen lecture, 1963

Van Allen Presidential Lecture, State University of Iowa, March 19, 1958

James Van Allen journal, 1951?-December 1954

Star wars

Physics students evaluating Explorer IV data, The University of Iowa, February 1959

James Van Allen Papers

Press conference at the National Academy of Sciences, May 1, 1958