the University of Florida—Anna-Lisa Paul
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John Timmer
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Stephen Elardo
Robert Ferl—
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A group of researchers at the University of Florida—Anna-Lisa Paul, Stephen Elardo, and Robert Ferl—decided to find out, and they used some incredibly rare material: lunar soil returned by the Apollo missions.The lunar soil exists in a form called regolith, which is basically loose, dusty material created by the constant bombardment of lunar rocks by micrometeorites. The samples all came from regions with a volcanic origin but differed in their age, with Apollo 11's material having the longest exposure on the surface and Apollo 17's having the shortest.You must login or create an account to comment.Join the Ars Orbital Transmission mailing list to get weekly updates delivered to your inbox.
As said here by John Timmer