Recent studies have shed light on the mysterious nature of black holes and their significant influence on galaxies. Researchers have proposed theories suggesting that black holes are not merely cosmic voids; they may connect different parts of the universe or even link separate universes through wormholes, as described by Einstein's Theory of General Relativity. A study by Chinese and French researchers reveals direct evidence that supermassive black holes can heat surrounding cold gas, preventing it from condensing into new stars and thus affecting a galaxy's growth and activity. The findings indicate that the mass of a supermassive black hole typically correlates with the mass of stars in its host galaxy, with the black hole's mass being about one-thousandth that of all stars in the galactic bulge. Additionally, India’s launch of the X-ray Polarimeter Satellite aims to enhance black hole research by utilizing X-ray observations to study these enigmatic entities. Current estimates suggest there may be around 40 quintillion black holes in the observable universe, highlighting their prevalence and importance in cosmic structure.