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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Spacecraft Watched the Lunar Eclipse from Mercury
MESSENGER Mission in Mercury Orbit
October 19th, 2014
Last week's lunar eclipse wasn't just a show for Earthlings, NASA's MESSENGER mission was also watching from Mercury, 66 million miles away.
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Volcanoes on the Moon May Have Erupted During the Dinosaur Age
Irregular mare patch on moon
October 14th, 2014
Scientists previously thought that the moon's volcanic activity died down a billion years ago. But new data from NASA's Lunar Reconnaissance Orbiter, or LRO, hints that lunar lava flowed much more recently, perhaps less than 100 million years ago.
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Partial Solar Eclipse to Darken US Skies This Week
This NASA graphic shows the visibility area of the partial total solar eclipse of Oct. 23, 2014. The eclipse will be visible from most of the United States, weather permitting.
October 20th, 2014
Nearly all of North America will experience the solar eclipse. People who live east of a line running from roughly Quebec City to Montauk Point, New York, will miss out, since the sun will set before the dark disc of the moon begins to encroach upon it.
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Apollo Astronaut's Anniversary Patch Recalls 'Flight of the Phoenix'
Apollo 7 45th Anniversary Patch
October 17th, 2014
Forty-six years ago this week, NASA's first Apollo astronauts to launch into space were circling the Earth, just as the crew's mission patch depicted. The official insignia though, was not what the crew initially envisioned as representing their flight.
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China Readies Moon Mission for Launch Next Week
China's Re-Entry Capsule
October 14th, 2014
The upcoming launch, expected to take place Oct. 23 from China's Xichang Satellite Launch Center, will apparently send an experimental, recoverable probe to lunar orbit and back to validate tech needed for a lunar sample-return mission.
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Water On the Moon Came from Solar Wind
Moon From Dublin
October 8th, 2014
An analysis of rocks brought back to Earth by NASA's Apollo missions suggests that most of the water trapped in rocks on the moon's surface originated from streams of solar particles rather than comet impacts.
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Who Owns the Moon? (Op-Ed)
Real estate on the moon
October 19th, 2014
Without proper regulation, the moon risks becoming an extra-planetary Wild West.
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First Photos of Water Ice on Mercury Captured by NASA Spacecraft
Kandinsky Crater on Mercury
October 15th, 2014
The images, taken by NASA's MESSENGER spacecraft, suggest that the ice lurking within Mercury's polar craters was delivered recently, and may even be topped up by processes that continue today, researchers said.
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Saturday Night Sky: See the Moon, Pleiades and a Red Star Together
Oct 11, 2014, Sky Map
October 10th, 2014
The moon, the famous Pleiades star cluster and the red star Aldebaran will dance together in the night sky this Saturday.
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