Space & Universe: Solve Mysteries in Our Crosswords

Solve space themed crosswords with answers about planets, constellations and distant galaxies right in your browser, with no downloads and no registration. Do you know which planet in the Solar System is the coldest, or which constellation holds the brightest star in the night sky? The clues are built to make you look up and think about how our universe actually works, since we are quite possibly not alone in it. The tasks cover the names of planets and moons, units used to measure cosmic distances, well known astronomers and astronauts, and terms from astrophysics that often show up in news about new discoveries. Solve a genuine space crossword on your phone or computer and sharpen your knowledge of astronomy.