BLACK HOLE Subject : Science & tech Context : Until now, the number of black hole mergers detected by LIGO, VIRGO and KAGRA detectors is minuscule compared with the number of mergers actually taking place in the sky. Concept : A black hole is formed when stars collapse and can be defined as […]

Subject : Science and tech Context: Nobel Prize in Physics for the year 2020 was awarded to three astrophysicists Roger Penrose from the UK, Reinhard Genzel from Germany, and Andrea Ghez from the USA. Concept: Discovery Black hole formation is a robust prediction of the general theory of relativity Black holes were one of the […]

Subject: Science and tech Context: In August 1970, in a paper in Nature, relativist C. V. Vishveshwara first published a calculation and plot of the signal that would be given out by a single perturbed back hole. Concept: Black hole refers to a point in space where matter is so compressed as to create a gravity field from […]