What was the full name of the observatory launched into space in 1978 to study x-rays?
The High Energy Astrophysical Observatory 2 (also known as the Einstein Observatory) The first large X-ray telescope with mirrors. Einstein made the first X-ray images of shock waves in supernova remnants, hot gas in galaxies and clusters of galaxies. Einstein also located accurately over 7000 X-ray sources, including stellar coronas, X-ray binaries, galaxies and quasars.
