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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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Contrary to speculation, the space agency's ambitious plans have not been cleared by the president yet.
On-demand printing would allow astronauts to repair broken parts, manufacture spare ones and maybe even build structures, all out of the dirt scooped from under their boots.
The Apollo 1 is pictured after an electrical spark ignited the environment, killing the crew.
See amazing photos of Jupiter and the moon during a dazzling conjunction on Nov. 28, 2012.
If you're planning to skywatch this December, this video will take you through some of the notable objects in the sky this month, including a meteor shower, large asteroids in the asteroid belt, and an array of constellations.
Mercury is the closest planet to the sun, yet still has shadowy secrets.
Lunatics aside, the moon doesn't make us crazy.
Crescent Moon is aglow with stunning eartshine in night sky photo.
While the Moon always keeps the same face to Earth, its not exactly the same. The tilt and shape of the Moon's orbit slightly changes what is visible to us. When you speed a month up to 24 seconds as in this video, our Moon appears to wobble.
Moon water could be transformed into propellant, fueling forays toward destinations in deeper space such as Mars.
A space station beyond the moon's far side could help humanity dip its toes in deep space.
The Hinode space probe captured the movement of the moon in front of the sun on November 13, 2012. The spacecraft, a collaboration between the space agencies of Japan, the United Kingdom, and the United States, orbits the Earth while facing the sun.
The moon, Red Planet Mars and red supergiant star Antares shine in the photo by Tunc Tezel.
How Solar Eclipses Work: When the moon covers up the sun, skywatchers delight in the opportunity to see a rare spectacle.
The rocket that launched men to the moon was first tested in 1967.
Galileo discovered Io, Ganymede, Europa and Callisto, Jupiter’s four largest moons in 1610. Even today their varied characteristics fascinate astronomers. From giant volcanoes to sub-surface seas, Jupiter's moons are like planets unto themselves.
This video, created by Michael Zeiler for his eclipse iBook, animates the path of the upcoming November 13 and 14 solar eclipse as it moves over Cairns, north Queensland in Australia and across the southern Pacific Ocean.
Scientists are looking at the moon's Linne Crater as something of a case study.
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