You might also have heard of some of the other seas on the Moon, like the Sea of Vapors, the Sea of Clouds, and the Ocean of Storms. But what about the Sea of Cleverness, the Sea of Crises ...

Moon rocks, on the other hand, can be more complicated to interpret, and have been providing a variety of ages. Together, the two processes suggest the moon is about 4.35 billion years old.

Discovered by Galileo in 1610, Io has since become one of the most fascinating ... signs deal with Russia to build a power plant on the moon — potentially leaving the US in the dust PGA Tour ...

Built between the 1st and 7th centuries A.D., it is characterized by the vast size of its monuments – in particular, the Temple of Quetzalcoatl and the Pyramids of the Sun and the Moon, laid out on ...