ASTRONOMERS

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Across
  1. 2. Polymath. Best known for HELIOCENTRISM
  2. 5. Most famous equation E=mc2
  3. 6. Proposed that stars are composed of H2 and He
  4. 8. American astrophysicist
  5. 9. Has a comet named after him
  6. 10. Danish, generally only known as TYCHO
  7. 14. Greek, Egyptian-born mathematician
  8. 15. GALILEI Developed and improved the telescope.
Down
  1. 1. Professor of Mathematics at Cambridge
  2. 3. Famous for 3 Laws of Planetary Motion.
  3. 4. Discoverer of a region of asteroids
  4. 7. Polymath. Famous for universal gravitation
  5. 11. HST is named after him
  6. 12. German British astronomer and composer
  7. 13. Best known for research into extraterrestrials