Vintage illustration of NASA's High Energy Astrophysical Observatory (HEAO) spacecraft – HEAO-1, HEAO-2 (Einstein Observatory), and HEAO-3 – orbiting Earth. These satellites, depicted above the planet, played a pivotal role in X-ray astronomy, discovering thousands of celestial sources. Each satellite is labeled A, B, and C respectively.
Astronomy Picture from 25/11/2000
A High Energy Fleet
Source: https://apod.nasa.gov/apod/ap001125.html
#HEAO #EinsteinObservatory #NASASpacecraft #XrayAstronomy #SpaceHistory #HighEnergyAstrophysics #VintageSpace #SpaceTelescope #70sSpace #SpaceExploration
2
0
1
0