Precipitation, to be clear, includes any variant – not just water, but snow or freezing rain and other forms of water falling from the sky. Much like the Eastern Seaboard in winter, a "warm" Mars ...

Researchers are watching the most active volcano in the Pacific Northwest and now say that the volcano is swelling up like a balloon full of lava.

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Visit Mars as it might have looked billions of years ago. Not frozen and dry, but wet, warm, and alive with flowing water.