Context

• The first ever photograph of a black hole was released on 10 April 2019.
• Scientists working in the Event Horizon Telescope (EHT)
• Collaboration presented their observations at 6:30 PM IST
• Sagittarius A, a supermassive black hole site is 26,000 light years away, while the second is at the centre of the supergiant elliptical M87 galaxy in the Virgo constellation.