The Small Astronomy Satellite (SAS-1), 1970.
© National Aeronautics & Space Administration / Science & Society
Also known as Explorer 42 and Uhuru, SAS-1 is shown here during preflight tests at the Goddard Space Flight Centre, Maryland. It was launched on 12th December 1970 from the San Marco platform off the coast of Kenya. Three SAS satellites were launched between December 1970 and May 1975 to explore the Universe at X-ray and Gamma-ray wavelengths.