This printable word search puzzle on the topic of Astronomy & Space contains 18 hidden words in a 24x24 letter grid. Words go horizontally, vertically, backwards, and diagonally. This word search is also available to download as a Microsoft Word document or a PDF.
the center of the universe
the rotation of the Earth
largest planet
neil armstrong
other gasses
stratosphere
thermosphere
blue planet
troposphere
mesosphere
exosphere
nitrogen
the big B
ground
oxygen
Earth
five
one