Components of galaxy Crossword

This printable crossword puzzle on the topic of Astronomy & Space has 13 clues. Answers range from 4 to 10 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

a collection of millions of stars bound together by gravity
believed to be in the center of most galaxies
Interstellar clouds of gas and dust
Almost circular or oval shape, stars swarm like bees, contain mostly old stars.
Flat disc with bulge or bar in middle, arms, have young and old stars.
No structure, splatter of stars, contain both age stars.
a giant luminous ball of super heated gas.
small celestial bodies.
contain thousands of galaxies a large grouping.
typically contain around 50 galaxies
consists ice dust ,dark organic matter, in center or core
comet nears sun, the frozen parts begin to turn into gas then forms cloud around nucleus.
radiation from sun, also changes dust particles of the comet causing scatter over 10 million km most promininte part of comet