Black hole, general relativity, singularity, galactic centre, optics.
Abstract
The Nobel Prize in Physics 2020 has been divided, one half awarded to Roger Penrose for the discovery that black hole formation is a robust prediction of the general theory of relativity, and the other half jointly to Reinhard Genzel and Andrea Ghez for the discovery of a supermassive compact object at the centre of our galaxy. Here, we describe their work and put it in historical context and discuss specific advances that have been rewarded.
