Explanation:

- Johannes Kepler formulated the "Laws of Planetary Motion," which describe the motion of planets around the Sun. These laws provided key insights for future astronomical studies and understanding of celestial mechanics.

- Option 1: Marconi - Guglielmo Marconi was an inventor and electrical engineer known for his pioneering work on long-distance radio transmission and for developing Marconi's law and a radio telegraph system.

- Option 2: Mendel - Gregor Mendel is recognized as the founder of modern genetics, known for his work on the inheritance patterns in pea plants, leading to the laws of Mendelian inheritance.

- Option 3: Einstein - Albert Einstein is famous for his theories of relativity, which revolutionized theoretical physics and our understanding of time, space, and gravity.

- Option 4: Kepler - Your choice, Kepler, is indeed correct.