Lunar innards revealed. Sorting through 40-year-old records of moonquakes (red dots) has apparently revealed a liquid-iron core (yellow) and a solid-iron inner core (orange). Apollo astronauts may be garnering another prize from their exploits of more than 3 decades ago. They left seismometers across the face of the moon to probe its interior, but no one had been able to paint a clear picture from
+ Play Audio | + Download Audio | + Historia en Español | + Email to a friend | + Join mailing list March 15, 2006: NASA astronauts are going back to the moon and when they get there they may need quake-proof housing. That's the surprising conclusion of Clive R. Neal, associate professor of civil engineering and geological sciences at the University of Notre Dame after he and a
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