Einstein Observatory, formerly High Energy Astrophysical Observatories, HEAO-2
Re-entered Earth's atmosphere on March 25, 1982
- Launch date
- November 12, 1978
- Launched by
- Atlas-Centaur SLV-3D
- Launch location
- Cape Canaveral, Florida
- Mission duration
- 3 years
- Light observed
- X-ray
- Website
- Einstein's homepage