CBS News | Scientists discover previously unidentified mass beneath moon's surface
A previously unknown deposit of an unidentified physical substance larger than the size of Hawaii has been discovered beneath the surface of the moon. Scientists at Baylor University published a study detailing their findings of this "anomaly" beneath the moon's largest crater, at its South Pole. They believe the mass may contain metal carried over from an earlier asteroid crash.
According to the study — "Deep Structure of the Lunar South Pole-Aitken Basin" — which was published in the journal Geophysical Research Letters in April, the large mass of material was discovered beneath the South Pole-Aitken crater, an oval-shaped crater that is 2,000 kilometers (about 1,243 miles) wide and roughly 4 billion years old. According to Baylor University, the unidentified mass was discovered "hundreds of miles" beneath the basin and is "weighing the basin floor downward by more than half a mile."
"Imagine taking a pile of metal five times larger than the Big Island of Hawaii and burying it underground. That's roughly how much unexpected mass we detected," said lead author Peter B. James, Ph.D., assistant professor of planetary geophysics in Baylor's College of Arts & Sciences.
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