Scientists have discovered a Star system with seven Earth like planet and this system of planets is known as Trappist-1. The seven Earth like planets orbit round the Trappist- 1 star just like as the Earth orbits the sun.
Astronomers say Trappist-1 is a dwarf star like structure and is 39 light years away from the earth.
Scientists also believe there is possibility that all of the seven planets orbiting the Trapist-1 star have water on them and about three of them could have large water bodies like oceans which suggests existence of life and possible evolution of biological life. They also think there is likelihood the planets have rocky compositions like the Earth and surface temperatures between 0-100°C (32-212°F) which would also aid good atmospheric conditions necessary for evolution of biological life.