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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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Rhea's icy surface bears the scars of innumerable impacts over the eons.
A close conjunction of the moon and Jupiter is sure to dazzle stargazers this week.
Both the Earth and Moon blocked NASA's Solar Dynamics Observatory's view of the Sun on March 11, 2013.
Find out how long the moon is officially "full," why a half-illuminated moon is called a "quarter moon," and more.
The Virtual Telescope Project's Gianluca Masi captured the asteroid on March 3rd, 2013 on approach to its minimum distance from Earth (~246,000 miles, about the distance of the Moon). Look for the small bright speck in the center of the screen.
An asteroid (named 2013 EC) on a trajectory to fly-by Earth was discovered on March 2nd, 2013 at the Mt. Lemmon Observatory in Arizona. Its nearest approach (March 4) was ~246,000 miles, about the distance of the Moon.
In the last year, private companies have unveiled asteroid mining projects, space rock sentinels and more.
One toddler's fascination with the moon has become a hit on YouTube.
See the top 10 cool facts about our natural satellite, the moon.
McKay helped train the Apollo moonwalkers and led a study that claimed a Mars meteorite may contain signs of past life.
There's plenty to see now on Earth's nearest neighbor.
Find out when and where to look for the pink-looking planet.
Moon Astronomy Lesson: Learn more about moon phases, a waxing and waning crescent or gibbous moon and the lunar cycles of Earth’s moon each month at SPACE.com.
Distances driven by wheeled vehicles on the Moon and Mars.
Matt Hartman captured Earth's Moon and the Gas Giant in close skywatching proximity on January 21st, 2013.
Night sky photographer Scott McGuire snapped this stunning photo of the space station full moon over Half Dome at Yosemite National Park.
A digital image of Leonardo da Vinci's painting became the first transmission via laser to a satellite in lunar orbit. Lasers offer a more efficient way to 'talk' with spacecraft. The beam traveled ~240,000mi to NASA's Lunar Reconnaissance Orbiter.
There are good scientific and ethical reasons to protect parts of Mars and other celestial bodies, advocates say.
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