Moon's Surface Shows Signs of a Gas Burp

An area of the moon suspected of a gas eruption. i

A region of the moon, shown in false color to indicate variations in composition and age, is suspected of a gas eruption within the last several million years. Peter H. Schultz/Brown University hide caption

itoggle caption Peter H. Schultz/Brown University
An area of the moon suspected of a gas eruption.

A region of the moon, shown in false color to indicate variations in composition and age, is suspected of a gas eruption within the last several million years.

Peter H. Schultz/Brown University

Scientists have new evidence that the moon burped a large cloud of gas within the last few million years, a time period considered to be "recent" in geological terms. The evidence is a dent in the surface that was originally spotted by one of the Apollo moon missions.

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