Johannes Kepler was an astronomer, astrologer and a mathematician from Germany, regarded as one of the most influential person of 17th century in scientific revolution.
He was the one who discovered the three major Laws of Planetary Motion, which are as follows:
He was the first person to to argue that the Earth orbited around the sun instead of the other way around.
He was really interested in the movement of the planetary bodies for which he needed a better Telescope and invented Kepler's Telescope.
Know your interests and bring out solutions to the problems you face while exploring it. you never know what can come out of it!!