India's Defence Secretary Dr Ajay Kumar has come out with his new book titled 'FORCE IN STATECRAFT' and President's Chair of Excellence at NDC Air Vice Marshal (Dr) Arjun Subramaniam (Retd).
In 2019, astronomers of the Event Horizon Telescope captured the first-ever image of a supermassive black hole (M87*) which was located at the centre of a galaxy Messier 87 (M87).
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