This printable word search puzzle on the topic of Astronomy & Space contains 18 hidden words in a 24x24 letter grid. Words go horizontally, vertically, and backwards. This word search is also available to download as a Microsoft Word document or a PDF.
carbon dioxide
astronomy
nitrogen
galileo
helium
deimos
phobos
galaxy
saturn
gases
argon
rings
dione
mimas
titan
moons
stars
mars