Astronomers on Wednesday released the first images ever of a black hole, an object with such strong gravity that not even light can escape it, portrayed countless times by imaginative artists but never observed directly before.
An international team of astronomers at simultaneous media conferences in seven cities across the world announced the first direct visual evidence of a supermassive black hole located at the centre of the Messier 87 galaxy about 55 million light years from Earth.
They relied on a global network of eight radio telescopes synchronised by technology to function as an Earth-sized virtual observatory called the Event Horizon Telescope (EHT), working at frequencies first generated by Jagadish Chandra Bose in Calcutta more than 120 years ago.
India is not part of the EHT network but the radio telescopes worked at hundreds of gigahertz frequencies that were first generated by Bose in experiments in Calcutta during 1895.
Source: Telegraph India