Supermassive Black Holes

🔹 About

1. It refers to a point in space where the matter is so compressed as to create a gravity field from which even light cannot escape

2. Conceptualised by Albert Einstein in 1915

🔹 Categories

1. Range between a few solar masses and tens of solar masses

2. Supermassive black holes [Range from hundreds of thousands to billions of times that of the sun from the Solar system to which Earth belongs]

🔹 Recent Developments

1. Indian scientists have discovered the merger of three supermassive black holes from as many galaxies to form a triple Active Galactic Nucleus.

🔹 Facts

1. In April 2019, the scientists at the Event Horizon Telescope Project released the first-ever image of a Black Hole 

2. Gravitational waves are created when two black holes orbit each other and merge

3. Active Galactic Nuclei: There are supermassive blackholes, which are several million solar masses in size, at the centres of galaxies