Granat
An artist's conception of the Granat spacecraft. (Credit: Soviet Space Program)
Lifetime: December 1989 - November 1998
Country (primary): Soviet Union
Primary Science
Granat was a dedicated X-ray and gamma-ray astronomical observatory designed to study high-energy emission from galactic and extra-galactic sources.
Science Highlights
- Deep imaging of the galactic center region
- Discovery of electron-positron annihilation lines from a micro-quasar and an X-ray nova
- Study of the spectra and time variability of black hole candidates
- Detection of a number of gamma-ray bursts