Astrobiology Crossword

This printable crossword puzzle on the topic of Astronomy & Space has 10 clues. Answers range from 3 to 13 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

The name of the planet 4th from the Sun.
How organisms evolve to suit their environment.
The name of our nearest Star after the Sun.
The name of a planet which rotates around another Star.
One of the required conditions for life.
The name of an object that orbits a planet.
The name for "a living thing"
This may have existed on our nearest planet.
The name of this topic.
All planets rotate around this in our Solar System