State of the art seismological techniques applied to Apollo-era data suggest our moon has a core similar to Earth's.
The team's findings suggest the moon possesses a solid, iron-rich inner core with a radius of nearly 150 miles and a fluid, primarily liquid-iron outer core with a radius of roughly 205 miles. The research indicates the core contains a small percentage of light elements such as sulfur, echoing new seismology research on Earth that suggest the presence of light elements - such as sulfur and oxygen - in a layer around our own core.
(NASA/MSFC/Renee Weber)
