20 April 2011, 06:00 AM ET
The two moons of Mars – Phobos and Deimos – are in the sights of both robotic and human spaceflight planners.
19 April 2011, 07:00 AM ET
Alien planets around certain stars or starless could have lakes like Saturn's moon Titan.
15 April 2011, 02:07 PM ET
The Saturn triangle returns to the night sky Saturday night.
09 April 2011, 08:06 AM ET
Weather and meteor impacts, not ice volcanoes, may actually be reshaping Titan - Saturn's largest moon.
01 April 2011, 05:33 PM ET
Here's a look at how to observe the planets of the solar system in 2011.
31 March 2011, 02:02 PM ET
Ring ripples around Saturn and Jupiter tell a violent story of comet strikes.
30 March 2011, 03:54 PM ET
Saturn is back in the evening sky and here's how to see it.
23 March 2011, 11:33 AM ET
Saturn's odd radio emissions likely show the sun's shifting influence on the giant planet.
23 March 2011, 09:33 AM ET
Hear the strange radio signals from Saturn as heard by Cassini, and how they work.
17 March 2011, 02:01 PM ET
The region was once thought to be a dry, arid dune-covered place, scientists say.
07 March 2011, 10:48 PM ET
The discovery makes it more likely that a liquid-water ocean lies beneath Enceladus' icy surface.
22 February 2011, 06:57 PM ET
The dense smog of Saturn's largest moon Titan has ice clouds like some on Earth.
18 February 2011, 04:57 PM ET
The "Saturn Triangle" is returning to the night sky for late-night skywatchers.
18 February 2011, 03:20 PM ET
NASA's Messenger spacecraft has snapped a solar system family portrait.
18 February 2011, 11:51 AM ET
NASA's Cassini spacecraft is flying by Saturn's largest moon Titan today.
18 February 2011, 10:30 AM ET
The claim of a microbe that swaps arsenic for phosphorus may be questionable, but its implications are far-reaching.
14 February 2011, 01:22 PM ET
See some of the most popular photos of Saturn taken by the Cassini spacecraft.
07 February 2011, 07:45 PM ET
NASA and Europe's space agency are firming up plans for an ambitious mission to explore Jupiter's moons. NASA and ESA are working to develop the Europa Jupiter System Mission
26 January 2011, 06:40 PM ET
The moon, Saturn, Venus and several stars offer a pre-dawn sky show on Thursday, Jan. 27.
24 January 2011, 05:21 PM ET
Skywatchers up late tonight may see the celestial triangle: Saturn, the moon and Spica.
17 January 2011, 06:35 PM ET
A list of skywatching events in January 2011 that you don't want to miss.
15 January 2011, 09:57 AM ET
New photos of Saturn's moon Rhea by NASA's Cassini spacecraft reveal a battered and pockmarked surface.
05 January 2011, 09:38 AM ET
Early risers this week will be treated to a spectacular display: Mercury, Venus, and Saturn will appear just before sunrise.
27 December 2010, 06:58 PM ET
The storm, in Saturn's southern hemisphere, was photographed by NASA's Cassini spacecraft Dec. 24, 2010.
25 December 2010, 01:27 AM ET
The next mission to Titan could get a bird's-eye view of the Saturn moon, sending a balloon or blimp cruising through its skies for months.
24 December 2010, 06:54 AM ET
NASA’s Cassini spacecraft has snapped some of the best-ever pictures of the Saturn moon Rhea, yielding clues about the satellite's recent tectonic rumblings.
20 December 2010, 10:00 AM ET
How to best observe the major planets of our Solar System. Some have worlds of their own.
17 December 2010, 10:23 AM ET
A giant hydrocarbon lake on Saturn's moon Titan is mirror-flat and surprisingly shallow, with average depths comparable to that of a backyard swimming pool, according to a new study.
15 December 2010, 03:49 PM ET
A massive ridge nearly encircling Saturn's moon Iapetus is likely the remains of a mini moon destroyed by Iapetus' gravity long ago, a new study suggests.
14 December 2010, 02:22 PM ET
For the first time, scientists now have solid evidence for an ice volcano on Titan, Saturn's largest moon, according to a new study.
14 December 2010, 10:32 AM ET
Complex molecules similar to the building blocks of life on Earth may form commonly on the Saturn moon Titan, a new study suggests.
12 December 2010, 10:04 PM ET
Saturn's famous rings are the last remaining shreds of a giant moon torn apart by the planet long ago, a new study suggests.
02 December 2010, 05:31 PM ET
Scientists haven't found ET, but the discovery of a microbe that can thrive on arsenic should greatly broaden the search for life beyond Earth, according to experts.
01 December 2010, 05:31 PM ET
The announcement of a NASA press conference slated for tomorrow (Dec. 2) has set the Internet abuzz with rumors that extraterrestrial life has been discovered.
01 December 2010, 07:05 AM ET
The web of warm fissures feeding the ice geysers on Saturn's moon Enceladus is more extensive and complicated than scientists had imagined, new research has found.
25 November 2010, 02:06 PM ET
Saturn's second-largest moon, Rhea, has a wispy atmosphere composed of oxygen and carbon dioxide, study finds. NASA's Cassini spacecraft detected Rhea's atmosphere during a flyby.