Program: Heao

High Energy Astronomy Observatory

American scientific program made of 3 large observatories designed to study the "high energy universe," i.e., X-rays, gamma rays, and cosmic particles.

The scientific objectives of the HEAO program were to learn more about some of the most puzzling objects in the universe: pulsars, neutron stars, black holes, quasars, radio galaxies, and supernovas. Many of these radiate only in the X-ray, gamma ray, and cosmic ray regions of the electromagnetic spectrum and cannot be studied from the ground.

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