Answer: kepler

AnswerCrossword Clue
KEPLERNASA space observatory named for a Renaissance astronomer
KEPLER"The Father of Modern Astronomy"
KEPLERGerman astronomer Johannes
KEPLERDiscoverer of planetary laws (1571-1630).
KEPLEROne of the fathers of modern astronomy.
KEPLERFamous German astronomer.
KEPLERFamed astronomer: 1571-1630
KEPLERAstronomer Johannes
KEPLERGerman astronomer
KEPLERGround-breaking astronomer
KEPLERLaws of planetary motion discoverer