Nebula Theory Crossword

This printable crossword puzzle on the topic of Astronomy & Space has 12 clues. Answers range from 4 to 13 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Clouds of dust and gas in outerspace
Visible (mainly at night) by the reflected light of sun
Rotating dense gas and dust around newly formed star
Force that attracts a body toward the center of the earth
Two or more atomic nuclei come very close and then collide
Large body orbiting the sun
Held together by stars with gas and dust
Located in the orbits of Mars and Jupiter
Objects striking each other
Icy planetesimals surrounding the sun
The formation of solar systems
Gathering mass from its parent molecular cloud