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Showing posts from November, 2019

Habitable Zone around a Black Hole

Black Holes are always considered as reapers of life. So, here's a twist! LIFE AROUND A BLACK HOLE! Black Hole A black hole is a point in space-time fabric with extremely high density. The gravitational pull of a black hole isa so high that not even light can  escape its gravity.  AGN - Active Galactic Nucleus Simply, the nucleus or centre of an active galaxy.  This galaxy would be having a blacl hole at its centre. Around the black hole would be a disc of stars and gas, spiraling into the black hole, called the accretion disk. Let us see the possibility of life in this accretion disk, powered by the black hole.  Life Around It AGN emit different radiations. UV rays are also emitted. UV rays have the potential to power reactions for prebiotic chemistry. i.e, if prebiotic elements are available,  which are commonly available in and around a star, the UV rays can mediate the reactions between them,  synthesizing the simple biomolecular building blocks. Thus, the ori