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.
One of the brightest objects in the sky, Venus is visible from Earth because it is close to the orbit of the sun.
Newt Gingrich promises a lunar colony in less than a decade, but experts question whether it's possible.
A waxing crescent moon will pay a visit to Jupiter in the evening sky.
See images of the moon and Venus close together.
The asteroid 2012 BX34 came within 36,750 miles of Earth.
Researchers are still unclear about what might have powered this ancient lunar magnetic field.
A celestial convergence is set to take place this week.
Dunes on the huge moon vary according to latitude and elevation.
China targets 2013 for launch of a lunar landing mission.
Russia is in discussions with NASA and the European Space Agency, according to news reports.
New Horizons is zooming toward a close encounter with Pluto in 2015.
A NASA satellite found ice where the sun doesn't shine.
The names were suggested by students competing in a nationwide NASA contest.
The new names for the twin Grail moon probes were selected from a nationwide student contest.
See amazing astronomy images created by French-born artist Etienne Leopold Trouvelot in the 1800s.
Retired NASA spaceflyer Steven Hawley also discussed his own experiences.
NASA is looking at missions that would get humanity get out of low-Earth orbit.