Planetary System Crossword

This printable crossword puzzle on the topic of Astronomy & Space has 16 clues. Answers range from 3 to 11 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

The only surface liquid water in the solar system
Giant volcanoes, a huge canyon, polar cap
300 times more massive than Earth
Spectacular rings
_____ planets are gaseous, larger, and farther from Sun
Cheaper than other mission but have less time to gather data
Land on surface of another world
Even hotter than Mercury: 470 ° C, day and night
Made of metal and rock; large iron core
Converts 4 million tons of mass into energy each second
Made of H/He gas & hydrogen compounds (H 2 O, NH 3 , CH 4 )
Many moons (including Triton)
Much smaller than major planets
All large bodies in the solar system orbit in the ____ direction and in nearly the same plane
______ planets are rocky, relatively small, and close to the Sun
Explore surface in detail