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.
See amazing night sky photos taken by SPACE.com readers during September 2012.
The moon will have close encounters with three celestial bodies this month.
This space wallpaper captured the second full Moon of the month – known as a ‘blue’ Moon – just before it disappeared from the MSG-3 satellite’s sight behind the southern hemisphere.
Amateur astronomer Peter Sonney captured this footage of Augusts' bright blue moon around 1:20 AM on Saturday, September 1st.
International Observe the Moon Night is on September 22nd. The annual event inspired by the Lunar Reconnaissance Orbiter mission.
Amazing photos of the Aug. 31, 2012 blue moon were captured by skywatchers all over Earth.
A rare second Full Moon of the month, known as a "Blue Moon", is seen over Cincinnati on Friday, Aug. 31, 2012 in this amazing space wallpaper.
It's the last chance to see a blue moon until July 2015.
Thought to be called "blue" after an old english term meaning "betrayer," a Blue Moon is an extra full moon that occurs due to a quirk of the calendar.
The online Slooh Space Camera will broadcast live views of Friday's full moon.
In this space wallpaper, the Moon appears large because it is seen close to the horizon and our perception is deceived by the proximity of references on the ground.
Far away from light pollution and high up in the Sierra Nevada mountain range, Yosemite National Park's stunning views of the night sky and majestic natural wonders attract astronomers, photographers and city dwellers from around the country.
Blue moons are not really blue. And they're not all that rare, either.
NASA's Lunar Reconnaissance Orbiter have viewed the Apollo landing sites in detail.
See historic photos from NASA's Apollo program to put humans on the moon in the 1960s and early 70s.
This early morning shot of the iconic salt march captures the crescent moon with Jupiter and Venus.