Earth's Moon: Formation, Composition and Orbit

Scientists say a giant impact knocked off the raw ingredients for the moon off the primitive molten Earth and into orbit.
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Did 'Iron Rain' Bypass the Moon to Fall Mostly on Earth?
Artist's conception of moon-forming collision
March 27th, 2015
New experiments show that the asteroids that slammed into Earth and the moon more than 4 billion years ago were vaporised into a mist of iron but stayed gravitationally stuck on more massive Earth.
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What It Would Be Like to Live on Neptune's Moon Triton
While living on Neptune's moon Triton, you'd be subjected to the coldest temperatures in the solar system, incredibly weak gravity and retrograde sunrises and sunsets. This image of Triton was taken by NASA's Voyager 2 spacecraft in 1989.
March 24th, 2015
Neptune's moon Triton has some unique properties among the moons of the solar system, which could make it an interesting location for a space colony.
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Moon Crater from Giant Lunar Crash in 2013 Finally Found (Video)
This image, taken by the LROC instrument aboard NASA's Lunar Reconnaissance Orbiter on July 28, 2013, shows the 62-foot-wide (18.8 meters) moon crater (center) produced by an impact on March 17, 2013.
March 18th, 2015
NASA's Lunar Reconnaissance Orbiter has spotted the crater left by the powerful moon impact of March 17, 2013.
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Take Stunning Moon Shots, From Your Driveway (Gallery)
A daytime picture of the moon
March 27th, 2015
For moon shots, a rural sky is not always necessary.
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What It Would Be Like to Live on Uranus' Moons Titania and Miranda
Surface of Uranus' Moon Miranda
March 17th, 2015
Titania and Miranda offer up great views and places to explore, but both of the moons suffer from extreme cold and very low gravity.
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The Far Side of the Moon Has Phases and Now You Can See 'Em (Video)
Far Side of the Moon
February 25th, 2015
The far side of the moon undergoes phases of light and dark, just like the side facing Earth. A new video featuring images from NASA's Lunar Reconnaissance Orbiter brings those phases to light.
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Supermoon vs. Minimoon: Sizing Up Earth's Satellite
supermoon, minimoon
March 27th, 2015
How super is a supermoon? Here's a minimoon for context.
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The Moon's History Is Surprisingly Complex, Chinese Rover Finds
Chinese Yutu Rover on the Moon
March 12th, 2015
The Yutu rover found evidence of at least nine distinct rock layers deep beneath its wheels, indicating that the area has been surprisingly geologically active over the past 3.3 billion years.
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