Solutions The American astronomer who discovered the planet Pluto has 3 entries with similar clues
- 5-letter words
- sednaMinor planet beyond Pluto
- 11-letter words
- tycho-braheDanish astronomer who measured the positions of stars and motions of planets and comets with unprecedented precision
- 15-letter words
- galileo-galileiAstronomer who discovered the constancy of pendulum and uniform acceleration of falling bodies