Out of this World Crossword Puzzle

This printable crossword puzzle on the topic of Astronomy & Space has 11 clues. Answers range from 4 to 10 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

The coldest planet
the name of our solar system
3rd rock from the sun
rocks that float around in space
rocks found on the moon
a subset of a universe
what astronauts wear in space
a rock that permanently orbits around a planet
a rip in the space-time continuum
technology that orbits the Earth and provides data transmission
unit of measure of space time