Space Travel Crossword

This printable crossword puzzle on the topic of Astronomy & Space has 10 clues. Answers range from 4 to 12 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

The force that attracts an object toward the center of the earth.
The curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution
being situated in between two stars
the space in between Mars and Jupiter where there are an abundance of asteroids, meteors, comets, etc.
the imaginary line that an object revolves around
a fixed luminous point in the night sky that is a large, remote incandescent body like the sun
a celestial body moving in orbit around a star
the emission of energy in electromagnetic rays
the collection of eight planets and their moons in orbit around the sun
a space devoid of matter