The Nobel prize in Physics 2020 / Winner's name and biography / Black hole / Summary / Wiki ..........

                                          

These are the Scientist's who won the Nobel prize in Physics this year (2020) :

1.  Roger Penrose 

2.  Reinhard  Genzel 

3.  Andrea Ghez 

" Roger Penrose " says with the help of        " General Theory of Relativity "  we can understand " Black hole " .

When " Einstein " discovered " The Theory of Relativity " he couldn't prove that the existence of " Black hole " or it could be understood from this theory .

Later :

Stephen Hawking

Chandrashekhar Venkata Raman

&  Roger Penrose (2020)

......They prove that " Black hole " exist and that their existence can be deduced from   " General Theory of Relativity " .

" Reinhard Genzel & Andrea Ghez :

For the discovery of a " Supermassive Compact Object " at the centre of our galaxy .

ROGER PENROSE 

Sir Roger Penrose ( born 8 August 1931 ) is an english mathematical physicist , mathematician , philosopher of science and Nobel lecture in Physics .

Penrose has made contribution to the mathematical Physics of  " General Relativity & Cosmology " . He was received several prizes and awards including the 1988 : Wolf prize for physics , which he shared with " Stephen Hawking " for the     " Penrose -Hawking Singularity Theorems   "  and the " 2020 Nobel prize in Physics "

ANDREA MIA GHEZ 

Andrea Mia Ghez ( born June 16 1965 ) is an American astronomer and professor in the Department of Physics and Astronomy at UCLA .known for styding the Centre of the Milky way Galaxy . 

In 2020 , she became the 4 th Women to be awarded the Nobel prize in Physics .

REINHARD GENZEL 

Reinhard Genzel ( born 24 March 1952 ) a general astrophysics , co- director of the Max plank Institute for Extraterrestrial Physics , a professor at LMU and the emeritus professor at the University of California , Berkeley . 

He was awarded " The Nobel prize " for Physics for the discovery of a " Supermassive Compact Object " at the centre of the our Galaxy , which with " Andrea Ghez " and " Roger Penrose " .

What is BlACK HOLE !!!!!

A Black hole is formed when stars collapse and can be defined as a space in the Universe with an escape velocity so that even light can't escape it .

Escape velocity is the speed at which an object must travel to Override a planet or an Object's gravitational force for instance , for a spacecraft to leave the surface of the earth . It needs to be traveling at a Speed of about 40,000 km per hours .