Astrosat

Context

Astrosat, India’s first dedicated astronomy mission witnessed the birth of black holes for the five hundredth time.

A black hole is a place in space where gravitational force is so high that even light cannot get out.
High configuration space telescopes can help find black holes.
Black holes in the modern sense were first predicted as a consequence of Albert Einstein’s general Theory of relativity in 1915.
According to NASA, the gravity in black holes is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying.
The gravity is so strong because the matter has been squeezed into a tiny space. This can happen when a star is dying.
- Because no light can get out, one can't see black holes. They are invisible.

AstroSat is India’s first multi-wavelength space telescope, which has five telescopes seeing through different wavelengths simultaneously — visible, near UV, far UV, soft X-ray and hard X-ray.
Onboard the AstroSat is a 38-cm wide UltraViolet Imaging Telescope (UVIT), which is capable of imaging in far and near-ultraviolet bands over a wide field of view.
AstroSat was launched on 28 September 2015 by ISRO into a near-Earth equatorial orbit.
It is a multi-institute collaborative project, involving IUCAA, ISRO, Tata Institute of Fundamental Research (Mumbai), Indian Institute of Astrophysics (Bengaluru), and Physical Research Laboratory (Ahmedabad), among others.
It has been studying Gamma-Ray Bursts (GRB).

GRBs are immensely energetic explosions that have been observed in distant galaxies.
They are the brightest and most energetic electromagnetic events known to occur in the universe.
GRBs shine hundreds of times brighter than a typical supernova and about a million trillion times as bright as the Sun.
When a GRB erupts, it is briefly the brightest source of cosmic gamma-ray photons in the observable Universe.