The Moon Once Had An Atmosphere?

Barren and desolate today, our moon was once swathed by a thin atmosphere.

Born from geothermal eruptions when the moon was still young, gaseous traces of carbon monoxide, sulfur, hydrogen and oxygen once swirled across the moon’s surface, say researchers from NASA. The atmosphere would have persisted for about 70 million years, they estimate, and existed three to four billion years ago, soon after our rocky companion was formed.

The new findings, published in Earth and Planetary Scien

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