23 September 2010, 06:21 PM ET
Earth isn't the only planet in the solar system with a dazzling aurora borealis light show.
23 September 2010, 02:16 PM ET
Observations by NASA's Cassini spacecraft show a stunning aurora light show on Saturn.
08 September 2010, 12:56 AM ET
The planet Jupiter is back in the night sky and has something for every amateur astronomer to enjoy.
25 August 2010, 02:18 PM ET
Venus is shining bright this week and appears as a crescent as it makes way for a show from Jupiter.
18 August 2010, 10:19 AM ET
NASA's Cassini spacecraft swung by three Saturn moons in a cosmic triple play and beamed new photos of the satellites home to Earth.
06 August 2010, 03:45 PM ET
This weekend marks the peak of a beautiful alignment of the planets Venus, Mars and Saturn in the evening sky. This impressive gathering comes ahead of the annual Perseid meteor shower, a shooting star fest that will be at its best Aug. 11 to 13.
04 August 2010, 12:06 PM ET
Saturn's aurora, a ghostly ultraviolet glow that illuminates the gas giant's upper atmosphere near the poles, has a heartbeat that pulses in tandem with the planet's radio emissions, scientists have discovered.
04 August 2010, 06:27 AM ET
A spectacular gathering of three of the brightest planets will be the chief celestial attraction in the evening sky during the next couple of weeks.
30 July 2010, 01:15 PM ET
A comprehensive model of Saturn's magnetosphere and moons has revealed that the ringed planet's largest moon Titan gets its oxygen from the icy geysers on another. Icy geysers on Saturn's moon Enceladus send icy vapor into space, which breaks down and mig
29 July 2010, 02:05 PM ET
Gusty winds that blow in reverse of prevailing weather on Saturn's largest moon Titan appear to shape some of the moon's odd equatorial sand dunes, a new study finds.
28 July 2010, 10:00 AM ET
A trio of planets converging in the night sky this week to give casual skywatchers the perfect chance to see Mars, Venus and Saturn.
20 July 2010, 01:00 PM ET
A NASA spacecraft that orbits Saturn has captured new images that show icy particles in the planet's F ring that are clumping into giant snowballs, created by the gravitational pull of a nearby moon.
14 July 2010, 08:04 AM ET
The crescent moon will appear near each of the skies the brightest planets, Venus, Mars, and Saturn, this week.
09 July 2010, 01:11 PM ET
A tiny moon orbiting Saturn has been caught creating ripples in the trademark rings around the gas giant planet in new photos from NASA's Cassini spacecraft.
08 July 2010, 03:43 PM ET
Giant propeller-shaped structures have been discovered in the rings of Saturn and appear to be created by a new class of hidden moons.
23 June 2010, 10:33 AM ET
The Cassini probe's pass through the Titan atmosphere on Sunday was its deepest yet and has already yielded surprising results.
18 June 2010, 04:32 PM ET
NASA's Cassini spacecraft will get its best look yet at Saturn's biggest moon Titan this weekend when it takes the deepest dip yet into the cloud-covered satellite's hazy atmosphere. Cassini will fly just 547 miles above Titan's surface, closer than ever
17 June 2010, 02:39 PM ET
NASA's Cassini spacecraft has revealed new photographs of powerful lightning flashing on Saturn after steadily watching a particularly stormy part of the ringed planet, according to a new study.
14 June 2010, 09:45 AM ET
A small capsule containing dust from the asteroid Itokawa touched down Sunday at the Woomera test range in the Australian Outback. Launched in May 2003, Hayabusa suffered a host of technical problems and malfunctions, but in the end came home.
09 June 2010, 01:09 PM ET
The rings of Saturn might have given birth to the giant planet's odd, small moons, scientists now reveal.
08 June 2010, 03:10 PM ET
NASA's Cassini spacecraft snapped new photos of Saturn's biggest moon Titan during a recent flyby over the moon's northern pole that targeted the home of the cloudy moon's largest methane lake.
07 June 2010, 09:44 AM ET
Saturn's moon Titan is loaded with liquid methane. Can it support life?
02 June 2010, 08:54 AM ET
Saturn, Mars, and Venus are all in the evening sky, and are closing in on each other.
19 May 2010, 04:44 PM ET
NASA's Cassini spacecraft is whipping through a double-header at Saturn to catch an up-close glimpse at two of the ringed planet's moons – the icy geyser-ridden Enceladus and the cloud-covered Titan.
18 May 2010, 08:47 AM ET
The moon will perform a cosmic dance with Mars, Saturn and the bright star Regulus this week. Here's how to see it.
13 May 2010, 08:15 AM ET
New robot blimps or balloons could for thousands of kilometers to explore other planets and moons from a bird's eye view.
11 May 2010, 05:03 PM ET
Saturn's rings, partially darkened by the planet's shadow appear to slice through the its largest moon, Titan, in a new photo released by NASA.
11 May 2010, 01:22 PM ET
Space probes have snapped stunning photos of Saturn's largest moon Titan, but the sounds of the cloudy satellite – and, in fact, of most alien planets – still remain largely a mystery. Now, scientists are developing new sound sensors to detect thunder on
10 May 2010, 02:47 PM ET
Countdown to Atlantis' last flight; SPACEX gets ready; Orion crew escape test; How to sample Mars; Opportunity spies Endeavor crater; Guenter Wendt goes; Watery asteroid; Herschel's star-babies; Chandra spies double black holes; Zombie Sat; and more
06 May 2010, 06:04 PM ET
A lake of asphalt may be the closest thing on Earth to the hydrocarbon seas on Saturn's moon Titan, and it is apparently teeming with microbial life.
03 May 2010, 05:15 PM ET
The Cassini spacecraft that glided low over Saturn's moon Enceladus last week successfully completed its gravity observation, sending back data that scientists will use to understand the moon's interior composition and structure.
29 April 2010, 05:44 PM ET
A massive blizzard is raging on Saturn a storm so large and fierce NASA astronomers and amateur skywatchers can see it from Earth.
27 April 2010, 05:15 PM ET
NASA's Cassini spacecraft, part of the Cassini-Huygens mission, will glide low over Enceladus tonight to perform an experiment designed to probe the moon's interior composition.
22 April 2010, 09:27 AM ET
Impact craters found on Titan could help scientists determine the age of this Earth-like moon and its potential for life.
20 April 2010, 04:14 PM ET
The insides of Saturn's largest moon Titan are arranged like a slushy mix of rock and ice, the Cassini probe has found.
15 April 2010, 02:39 PM ET
NASA's Cassini spacecraft captured images of lightning on Saturn that allowed scientists to create the first movie that shows lightning flashing on another planet.