In new observations beamed back from Cassini, Saturn's icy moon Tethys has decided to show off its mysterious stripes.
What tiny satellites could take a ride over to Europa? Here are five feasibility studies being considered to hitchhike on a NASA mission.
In a new portrait, imaged shortly before NASA New Horizons punched through the dwarf planet's neighborhood on Tuesday, Pluto and largest moon Charon hang serenely in the dark.
Europa is an ice-covered moon orbiting Jupiter that likely an ocean underneath. Perhaps that ocean contains life. Perhaps it doesn't. But we're not going to know for sure until we send a probe there to check things out.
Four out of the five moons of Pluto have been discovered in the last ten years -- two of them after the New Horizon's spacecraft began its 9-and-half-year journey to the dwarf planet. Could there be more uncharted moons and hidden dangers lurking?
Saturn’s faint outermost ring cuts a massive swath as it circles around its home planet, spanning an area of sky nearly 7,000 times larger than Saturn itself.
For the most part, Pluto’s four small moons appear to orbit harmoniously and precisely around the equatorial region of the dwarf planet, but appearances can be deceiving.
On Sunday, May 31, 2015, NASA's Cassini spacecraft successfully made its latest and final flyby of Hyperion, Saturn's spongy moon. And the view was amazing.
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