Episode Details

What if the Moon — now a dead, airless rock — once had a sky of its own? New research reveals that billions of years ago the Moon’s volcanic eruptions may have released so much gas that a real, thin atmosphere formed — possibly thicker than Mars’ atmosphere today. This short-lived lunar air could have created wind, weathering, and even temporary water. But over time, the gases escaped into space, and the Moon lost its air forever.

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