GS Paper - 3 (Space Technology)

India's first dedicated multi wavelength space observatory, Astrosat, has detected the birth of a black hole for the 500th time, a key milestone that Indian scientists have called a "remarkable achievement".


  1. Pune-based Inter-University Centre for Astronomy and Astrophysics (IUCAA) said in a recent statement, "One of the instruments in Astrosat is the Cadmium Zinc Telluride Imager (CZTI) - which has just witnessed the birth of a black hole for the five hundredth time.
  2. The wealth of data obtained by CZTI on Gamma Ray Bursts is making a big impact worldwide.
  3. AstroSat, launched by Isro in September 2015, is one of the most sensitive space telescopes in the world.