It is amazing to think about E = 〖mc〗^2 the Relativity Theory of Albert Einstein. Now this theory leads to a New Planet. It is the first time Astronomer discovered an exo planet using a new method based on planet was E = 〖mc〗^2. Einstein's planet was earlier known as "Kepler-766. It is a hot Jupiter. Which orbits every 1.5 days. Its diameter is 20% more than Jupiter and its weight is twice as much.