Doctor John Hagan, director of the Vanguard project, appeared at a hearing of the House Space Committee and cautioned against putting too many satellites in space. Warning against filling space with "dead and useless" satellites. Photo shows Doctor Fred L. Whipple (left), Director of the Smithsonian Astrophysical Observatory, Cambridge and Doctor H. Guyford Stever (right), Associate Dean of Engineering at MIT. 22 April 1958
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