Related Clues:
- ''Principia Mathematica'' author
- Kepler contemporary
- English physicist
- 'Sidereus Nuncius' author
- Copernicus supporter
- Historic telescope user
- ''Danke Schoen'' singer Wayne
- He was inspired by an apple
- Italian astronomer
- NASA probe launched in 1989
- An apple inspired him
- Law of universal gravitation formulator
- One of the giants of science
- Sir Isaac or Juice
- Sir Isaac, discoverer of gravity