A recent simulation predicts that NASA's New Horizons probe could slam into a rocky killing field encircling the "binary planet" Pluto-Charon, during its 2015 flyby. ->

This is a color composite image of Saturn's moon Rhea (pronounced REE-ah) made from raw images acquired by Cassini this past Saturday, March 9, during its most recent -- and last -- close pass of the moon. ->

Two of dwarf planet Pluto's tiniest moons need names -- but rather than leaving the Plutonian satellites' naming ceremony to astronomers, that honor has fallen to you. ->

The moon we see today isn't the moon that was born 4.5 billion years ago. NASA's Goddard Space Flight Center traces its evolution in a fascinating new video that shows the various events that have shaped the moon we've come to know. Over this course of time, our moon has taken quite a beating, unde...

Since scientists confirmed Titan's oceans are made of liquid methane, they've longed to set sail and discover a new alien ocean.

On April 13 in New York City, Bonhams will auction off pages from the Apollo 13 mission manual, with handwritten notes by flight commander Jim Lovell.

The map, created by the twin GRAIL spacecraft, should shed light on the evolution of the moon and the solar system's rocky planets.

On Saturday, the Cassini Solstice mission flew past the Saturnian moon Enceladus at a breakneck speed of 17,000 mph and an altitude of only 62 miles!