This printable crossword puzzle on the topic of Astronomy & Space has 10 clues. Answers range from 3 to 7 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Heart of our Solar System
Made out of metal
Similar in size to Earth
The only planet known to have life on it
The red planet
The biggest planet in the Solar Sytem
A planet with beautiful rings
Made of metane
A dark blue planet
A ball of ice and dust