ROSAT
The ROentgen SATellite (ROSAT), launched into space on 1 June 1990, allowed researchers to perform an all-sky survey of X-ray sources with an imaging telescope for the first time.
Herkunftsnachweis:DLR
The ROentgen SATellite (ROSAT), launched into space on 1 June 1990, allowed researchers to perform an all-sky survey of X-ray sources with an imaging telescope for the first time.
Herkunftsnachweis:DLR
