In stark contrast to the rest of the planet's rusty-red surface, Mars' south pole is covered in bizarre, Swiss cheese-like formations.While scientists have known for a few years now what those formations are made of - layers of frozen carbon dioxide and frozen water that have been deposited over many years - researchers have had a difficult time tracing how the formations developed and transformed over shorter periods of time.
#years #specifically #researchers #approximately #press-release #availability #temperature #difficult-time #human-beings
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