Austria 20 Euro 2022 'The Black Hole'

Austria 20 Euro 2022 'The Black Hole'. Get to know the holy grail of theoretical Physics. Black holes cannot be seen but they can be scientifically proven. The pull within a black hole is so intense that literally nothing can escape it. As Stephen Hawking and Roger Penrose explain 'There is a singularity. The space-time here is so strongly curved that space and time actually cease to exist, so there is infinite curvature!' On the face of the coin a Black Hole is represented by a funnel of spiral colours. The stylized Black Hole is depicted on the reverse of the coin. Furthermore, the text 'CYGNUS X-1' - the first Black Hole that could ever be proven - is shown. The text '15 Mo' indicates the number of sun-masses of this black hole. In addition, the country name REPUBLIK ÖSTERREICH (Austria) is shown. The value indication of 20 Euro is also displayed. The coin is presented in a beautiful case and is supplied with a certificate of authenticity.