Today, April 10, 2019 scientist and astronomers unveiled the first ever picture of the event horizon, as well as, the Black Hole of galaxy M87. Black Holes where first discussed as part of Einstein's Theory of Relativity. Today humanity has its first images of one, which I place in this post. Black holes are stars that have gone supernova after their iron cores have collapsed, having no more fuel to create fusion. After the explosion the core is so dense and compact that it's gravitational pull becomes great enough to not even allow light to escape. The event horizon is the point in which matter and light, no matter what their velocity is they cannot escape and swallowed by the black hole. Much more study will need to be done but that is what we humans do, explore and learn.
Thank you, at least I got the basics right lol
Thank you for your interest in black holes! To clarify, black holes are produced after the cataclysmic death, supernova, of supermassive stars (stars greater than 8 solar masses, or 8x mass of sun) or from neutron stars that secrete enough stellar material from its companion star to make it exceed 3 solar masses to form a black hole. (Neutron stars also form after supernova events.) Depending on how massive the supermassive star initially was, the process either goes into a neutron or directly into a black hole (for really massive stars). Additionally, two existing black holes can collide with each other forming a bigger black hole. Such collision would produce gravitational waves. (Side note: the Laser Interferometer Gravitational-Wave Observatory (LIGO)…