Space Exploration Crossword

This printable crossword puzzle on the topic of Astronomy & Space has 12 clues. Answers range from 5 to 12 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Where did rocket technology originate?
A space spinoff used for medical
A space spinoff for consumer products
Weightlessness
A place that is empty of all matter
A spacecraft that collect data but has no crew
A large artificial satellite where people live a long time
Small robot that move about on the surface of another planet or moon
The speed of a rocket in a given direction
A famous modern rocket scientist
A reaction force that propels an object forward
A device that expels gas in one direction to move in the opposite direction