Volcanic features Lunar nearside with major maria and craters labeled The dark and relatively featureless lunar plains, clearly seen with the naked eye, are called maria Latin for "seas"; singular mareas they were once believed to be filled with water;  they are now known to be vast solidified pools of ancient basaltic lava.
The authors of Civilization One return, bringing new evidence about the Moon that will shake up our world. Christopher Knight and Alan Butler realized that the ancient system of geometry they presented in their earlier, breakthrough study works as perfectly for the Moon as it does the Earth.
They found a consistent sequence of integer numbers that they can apply to every major aspect of the Moon; no such pattern emerges for any other planet or moon in the solar system.
In addition, Knight and Butler discovered that the Moon possesses few or no heavy metals and has no core—something that should not be possible.
I also have been trying to be a little more "green" than I used to be, but For all you greenies out there, have a good Earth Day! How would aliens, entering our solar system, see us from there? This amazing and unique picture of our planet, was captures from far far away, by Voyager spacecraft as it reached the outer Solar System.
With updated scientific information, the bestselling science series ever is back! The fieldtrip to the planetarium is foiled when the museum turns out to be closed, but Ms. Frizzle saves the day. The Magic School Bus turns into a spaceship and takes the class on a trip zooming through the atmosphere, to the Moon, and beyond!
With up-to-date facts about the solar system, revised for this edition.The moon is the easiest celestial object to find in the night sky — when it's there. Earth's only natural satellite hovers above us bright and round until it seemingly disappears for a few nights. The Moon is the only natural satellite of Earth: The Moon Profile.
orbit: , km from Earth diameter: km mass: e22 kg. History of The Moon. Called Luna by the Romans, Selene and Artemis by the Greeks, and many other names in other mythologies. The Moon, of course, has been known since prehistoric times.
Of the inner planets, Mercury and Venus have no natural satellites; Earth has one large natural satellite, known as the Moon; and Mars has two tiny natural satellites, Phobos and Deimos. Although the Moon is Earth's only natural satellite, there are a number of near-Earth objects (NEOs) with orbits that are in resonance with Earth.
These have been called, inaccurately but provocatively, "second", "third" or "other" moons of Earth. Of the inner planets, Mercury and Venus have no natural satellites; Earth has one large natural satellite, known as the Moon; and Mars has two tiny natural satellites, Phobos and Deimos.
The giant planets have extensive systems of natural satellites, including half a dozen comparable in size to Earth's Moon: the four Galilean moons, Saturn 's Titan, and Neptune 's Triton.
The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite. It is the fifth-largest natural satellite in the Solar System, and the largest among planetary satellites relative to the size of the planet that it orbits (its primary).Surface gravity: m/s² ( g).