CURRENT AFFAIRS

Detailed explanation-1: -The blackhole is about three times the mass of our sun, which measures tiny for a black hole. This black hole is 1, 500 light years away from Earth, still inside the Milky Way galaxy. The researchers have dubbed it as “The Unicorn”.

Detailed explanation-2: -Micro black holes, also called mini black holes or quantum mechanical black holes, are hypothetical tiny (<1 M ☉) black holes, for which quantum mechanical effects play an important role. The concept that black holes may exist that are smaller than stellar mass was introduced in 1971 by Stephen Hawking.

Detailed explanation-3: -In 1974 American astronomers Bruce Balick and Robert Brown pointed radio telescopes in Green Bank, W.Va., at the center of the Milky Way and discovered a dim speck they suspected was our galaxy’s central black hole. They found it in a slice of sky, known as Sagittarius A, within the constellation Sagittarius.

Detailed explanation-4: -Sgr A* - The Supermassive Black Hole in the Milky Way | Astronomy 801: Planets, Stars, Galaxies, and the Universe.

Detailed explanation-5: -The first black hole known was Cygnus X-1, identified by several researchers independently in 1971. Black holes of stellar mass form when massive stars collapse at the end of their life cycle. After a black hole has formed, it can grow by absorbing mass from its surroundings.