What is under the surface of the moon?

Answer 1

try this http://www.infoplease.com/ce6/sci/A0859765.html

Answer 2

Origin


Early speculation proposed that the Moon broke off from the Earth's crust due to centrifugal forces, leaving an ocean basin (presumed to be the Pacific Ocean) behind as a scar. This fission concept requires too great an initial spin of the Earth, and besides, the presumption of a Pacific origin is not compatible with the relatively young age of the oceanic crust at this locale. Others speculated that the Moon formed elsewhere and was captured into Earth's orbit. However, the conditions required for this capture mechanism to work (such as an extended atmosphere of the Earth for dissipating energy) are not too probable. The coformation hypothesis posits that the Earth and the Moon formed together at the same time from the primordial accretion disk. In this theory, the Moon forms from material surrounding the proto-Earth, similar to the way in which the planets formed around the Sun. Some suggest that this hypothesis fails to adequately explain the depletion of metallic iron in the Moon. A major deficiency with all of these hypotheses is that they cannot easily account for the high angular momentum of the Earth-Moon system.

Structure
Schematic illustration of the internal structure of the Moon.
Enlarge
Schematic illustration of the internal structure of the Moon.

The Moon is a differentiated body, being composed of a geochemically distinct crust, mantle, and core. This structure and the compositional variations observed from orbit and among the samples are believed to have resulted from the fractional crystallization of a magma ocean about 4.5 billion years ago.

A large amount of energy would have been liberated during both the giant impact event that formed the Earth-Moon system and the reaccretion of material in Earth orbit. It is widely believed that this energy would have been sufficient to melt a large portion of the outer portion of the Moon, with depths of this magma ocean estimated to be between about 500 km to the entire radius of the Moon.[1] Fractional crystallization of this magma would have led to a mantle composed largely of the minerals olivine, clinopyroxene, and orthopyroxene, and after about three-quarters of crystallization was complete, the mineral anorthosite would have precipated and floated to the surface because of its low density. Estimates for the average thickness of the crust are about 50 km, and both lunar samples and geochemical mapping from orbit are consistent with the crust

In terms of elements, the lunar crust is composed primarily of oxygen, silicon, magnesium, iron, calcium, and aluminium. Important minor and trace elements include titanium, uranium, thorium, potassium, and hydrogen. A complete global mapping of the Moon for the abundance of the major and minor elements has not yet been performed. However, some spacecraft have done so for portions of the Moon, or for certain elements. In particular, a gamma-ray spectrometer onboard the spacecraft Lunar Prospector has determined near-global abundances of iron, calcium, aluminum, magnesium, titanium, potassium, thorium, uranium, and hydrogen. The Clementine spacecraft has obtained near-global abundances for iron and titanium, but at a much higher spatial resolution.

Answer 3

Problly semi molten core....nothing near what we have on Earth as it being far smaller would have long lost most of its heat..well that and my secret moon base and the lair of the Mooninites.

Answer 4

Just rock. The moon is cold.

Answer 5

Parts of a planet that had collided with the earth during its molten formation period.

Answer 6

Cheese -- Swiss cheese.

This link proves it. Just keep increasing the magnification.

Answer 7

Why, MORE Moon, of course!