07 April 2014, 05:27 PM ET
Planets abound in the night sky this month, which affords good views of Venus, Jupiter and Neptune. And on Tuesday (April 8), Mars will make its closest approach to Earth in more than six years.
04 April 2014, 07:33 AM ET
Saturn's moon Enceladus and the Jupiter satellite Europa both harbor subsurface seas and should be studied much more closer in the future, researchers say.
03 April 2014, 05:21 PM ET
Enceladus has an extensive water ocean under its icey crust, feeding water jets that emerge from near the south pole.
03 April 2014, 02:01 PM ET
Enceladus' ocean is about 6 miles deep and lies beneath a shell of ice 19 to 25 miles thick. Further, it's in direct contact with a rocky seafloor, theoretically making possible all kinds of complex chemical reactions.
03 April 2014, 02:00 PM ET
Using data from a close fly-by of the moon by NASA Cassini probe, researchers have suggested that there is something dense beneath 18 to 24 miles of ice. Liquid water is the most likely suspect, Sapienza Università scientist Luciano Less explains.
31 March 2014, 01:01 PM ET
NASA technicians at the Jet Propulsion Laboratory inspect and repair damage inside the Huygens probe before its successful launch.
26 March 2014, 02:02 PM ET
Scientists have made a stunning discovery in the outer realm of the solar system — an asteroid with its own set of rings that orbits the sun between Saturn and Uranus. The space rock is the first non-planetary object ever found to have its own ring system
26 March 2014, 02:01 PM ET
The asteroid Chariklo is surrounded by two rings similar to those around the brilliant planet Saturn. See images and artist views of the asteroid's strange rings in this Space.com gallery.
26 March 2014, 02:00 PM ET
New observations from telescopes in South America of asteroid (10199) Chariklo, as it passed in front of a distant star, have revealed rings. Astronomers believe the rings may be partially composed of water ice.
26 March 2014, 02:00 PM ET
Chariklo is the first asteroid discovered to have it's own ring system, and only the fifth body in the solar system. The largest of a class of asteroids known as Centaurs that orbit between Uranus and Saturn, Charriklo has two distinct, narrow rings.
24 March 2014, 12:56 PM ET
Two pairs of Saturn’s moons make a rare joint appearance in this amazing space wallpaper.
23 March 2014, 10:15 AM ET
New observations from NASA’s Saturn-orbiting Cassini spacecraft show what appear to be glints of sunlight bouncing off a wind-rippled lake on the moon Titan.
17 March 2014, 09:36 AM ET
On its final orbit In 2017, NASA's Cassini probe will fly between the inner edge of the D ring and the upper atmosphere of the gas giant. It will also fly though an Enceladus plume in the next few years.
11 March 2014, 04:08 PM ET
A nearly full Rhea shines in the sunlight in this stunning space wallpaper taken in visible light with the Cassini spacecraft’s narrow-angle camera on Sept. 10, 2013. Rhea (949 miles, or 1,527 kilometers across) is Saturn's second largest moon.
10 March 2014, 08:00 AM ET
Researchers are developing flat, blanket-size landers that could be delivered en masse to worlds such as Mars or Jupiter's moon Europa. The approach could enable NASA to mount missions to places previously deemed too risky to explore, researchers say.
07 March 2014, 09:27 AM ET
Astronomers studying the dust and gas around bright star Beta Pictoris have discover a cloud of debris from collisions of icy comet-like bodies. It's possible that the comets are trapped in a small region by the gravity of a saturn-sized planet.
06 March 2014, 06:00 PM ET
A far-flung NASA space probe flying around Saturn zipped past the ringed planet's biggest moon for the 100th time. The Cassini spacecraft made its closest approach to the hazy moon Titan on Thursday.
06 March 2014, 07:30 AM ET
The space agency's Cassini probe snapped the photo in October, when it was 1.6 million miles from Saturn and 38 degrees below the ring plane. The planet's battered "Death Star" moon Mimas is visible as a pinprick of light at the bottom right.
05 March 2014, 05:00 PM ET
See amazing photos of Saturn's glorious rings.
04 March 2014, 12:08 PM ET
A human would be able to take flight off the surface of Saturn's moon Titan by running in a wingsuit — but only if they were as fast as sprinter Usain Bolt, a group of physics students say.
03 March 2014, 02:36 PM ET
The bright stars and star clusters of the constellation Gemini are on display along with post sunset sightings of Jupiter and Mars. Saturn and Venus make early morning appearances.
24 February 2014, 12:17 PM ET
Voyager 2, arriving at Jupiter four months after Voyager 1, was actually launched 16 days before its mate.
21 February 2014, 07:20 AM ET
Early on Saturday morning (Feb. 22), if skies are clear, you’ll have an opportunity to catch sight of the last quarter moon pairing off the ringed wonder of the solar system, Saturn.
11 February 2014, 11:40 AM ET
NASA's Cassini spacecraft snapped ultraviolet and infrared imagery of Saturn’s auroras in April & May, 2013. High energy electrons interacting with hydrogen molecules in the planet's atmosphere create the phenomenon.
06 February 2014, 09:27 AM ET
The planets location in the nightsky are pinpointed (you'll need binoculars or a telescope to spot Uranus and Neptune). Also, Comet's Lovejoy, Siding Spring and Linear can be viewed.
03 February 2014, 04:30 PM ET
An amazing new photo of Saturn's north pole puts the planet's odd hexagon-shaped jet stream and dazzling rings on display.
27 January 2014, 12:43 PM ET
Photographer Justin Ng captured the glow of inner solar system dust scattering sunlight over 3 Indonesian volcanoes, the active Semeru and Bromo plus the dormant Batok. Planets Venus, Saturn and Mercury lie within this field of view.
22 January 2014, 12:11 PM ET
To see the quick movement of the moon, observers need a set of bright markers across the sky, exactly the kind of signposts in the night sky this week. Two bright stars and three bright planets mark the moon’s path across the sky.
21 January 2014, 05:57 PM ET
The collapsible, flexible spacecraft could be a good fit for the marshy surface of Titan, which features lakes and seas of liquid ethane and methane.
06 January 2014, 10:49 AM ET
The Cassini Saturn probe goes though vibration and thermal testing in preparation for its four year mission.
31 December 2013, 09:27 AM ET
A crescent Venus, Jupiter at opposition, Taurus constellation and its Red-Giant 'eye' and the Quadrantid meteor shower makes for quite a skywatching show. In the market for a telescope? - Click the blue 'SHOP' link above.
30 December 2013, 10:08 AM ET
NASA's Cassini spacecraft has capped 2013 with a spectacular new collection of Saturn photos showcasing the planet's beauty, as well with its trademark rings and strange moons. Saturn's clouds, rings, and moons Titan, Enceladus and Rhea star in the new im
30 December 2013, 09:42 AM ET
This launch vehicle is designed to carry a payload equal to the size and weight of those on a space shuttles.
24 December 2013, 02:52 PM ET
Early risers will have an opportunity to see the moon move through the sky on Christmas Day and throughout the week.
23 December 2013, 06:25 PM ET
Rhea's icy surface bears the scars of innumerable impacts over the eons.
23 December 2013, 01:04 PM ET
Enceladus shines as one of the brightest objects in our solar system. See photos of Saturn's water ice-covered cold moon, as captured by NASA's Cassini spacecraft.