Orbiting Solar Observatories Gallery
The OSO series
The spectrum of the diffuse gamma-ray background in the 0.001 - 100 MeV energy range as measured by OSO-3, Rangers 3 & 5, Apollo 15, and SAS 2.
Diagram of the High Energy Celestial X-ray Experiment (HEXCE), also known as the Frost experiment.
Diagram of the HEXCE, including a overhead view of both detector crystals.
The photograph of OSO-8 under construction is courtesy of Hughes Aircraft Company. All other images are courtesy of NASA.
[About OSO 5] [About OSO 6] [About OSO 7] [About OSO 8]