| Solar System Scratchpad |
Swiss Cheese terrain (lava tubes marked with pits) that roughly forms a happy face. These pits were found to have widened over time.
Happy Face Swiss Cheese Web Pages[edit | edit source]
Happy Face Swiss Cheese In the News[edit | edit source]
HiRise Music Video (Jan 11)[edit | edit source]
- See Aeolis Region, Zephyria Region, Happy Face Swiss Cheese, Hellas Montes, Syrtis Major
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