Astronomers Crossword Puzzle

About the Astronomers Crossword Puzzle

This puzzle features astronomers whose observations, calculations, and discoveries shaped our picture of the cosmos. Look for names such as Galileo, Kepler, Hubble, Vera Rubin, and Edwin Hubble. It includes pioneers from ancient astronomy through modern astrophysics, making it a good fit for students, science fans, and anyone curious about the people behind major discoveries.

This crossword draws on 35 clues about Astronomers. Each grid uses a different handful and fits them together a new way, so press New puzzle for another whenever you finish. The answers are in the answer key when you print, and behind the Reveal button when you play.

Sample clues

• •Persian scholar who measured Earth’s radius (8 letters)
• •Danish observer whose measurements aided later planetary theory (5 letters)
• •Astronomer who showed stars are mostly hydrogen and helium (12 letters)
• •Greek scholar who calculated Earth’s circumference (12 letters)
• •German-born musician who discovered Uranus (8 letters)
• •Radio astronomer who discovered pulsars (11 letters)
• •American astronomer who discovered a comet in 1847 (13 letters)
• •Astronomer who explained stellar spectra using ionization (5 letters)

Teaching this topic or planning a party? Make your own crossword with your own words and clues.