17 September 2012, 12:08 PM ET
Now's your chance to see Saturn before it disappears for a while.
14 September 2012, 02:00 PM ET
These real planets, moons and asteroids match anything imagined by George Lucas for the "Star Wars" universe.
13 September 2012, 12:29 PM ET
Many alien planets likely dip in and out of their stars' "habitable zones."
05 September 2012, 05:37 PM ET
Voyager 1's rocket only had 3.5 seconds of fuel left when it sent the probe on its way 35 years ago.
04 September 2012, 11:50 AM ET
This September skywatchers can catch a glimpse of four planets (Venus, Mars, Jupiter, and Saturn) as well as a visual trick in the constellation Capricornus that makes two stars look like one oddly enlongated star.
30 August 2012, 11:40 AM ET
Saturn's rings obscure part of Titan's colorful visage in this space wallpaper from NASA's Cassini spacecraft.
30 August 2012, 07:00 AM ET
Cassini snapped the pictures, which were released Wednesday.
24 August 2012, 08:00 AM ET
President Kennedy gets a lesson in how the Saturn Launch System works.
20 August 2012, 04:57 PM ET
InSight will attempt to unlock the secrets of Mars' interior.
05 August 2012, 08:01 AM ET
Saturn, Mars and the bright star Spica will form a triangle in the night sky.
03 August 2012, 09:34 AM ET
Mars, Saturn and the bright star Spica will form a tight triangle in the western sky on August 5th that will be visible after sunset. The Mars Science Laboratory is set to land on the Red Planet at 1:31am (EDT) on August 6th, 2012.
01 August 2012, 12:19 PM ET
This cool space wallpaper reveals a quartet of Saturn's moons, from tiny to huge, surround and are embedded within the planet's rings in this Cassini composition.
01 August 2012, 11:20 AM ET
Curiosity makes its anticipated landing and for most of the month, Saturn and the bright star Spica will form a skywatching trio with the Red Planet - making them easy to spot. Dozens of meteors will light up sky in the annual Perseid Meteor Shower.
29 July 2012, 06:40 AM ET
Some landslides on Saturn's icy moon, Iapetus, travel 10 to 15 times farther than scientists expected.
23 July 2012, 07:00 AM ET
The hazy moon Titan has a puzzling geological past, according to a new study.
18 July 2012, 08:00 AM ET
A Titan rocket from the Gemini family prepares to deliver the Viking toward Mars.
13 July 2012, 10:34 AM ET
After a two-year drought, Saturn's rings shine in dazzling photos once more.
13 July 2012, 07:00 AM ET
How much do you know about our solar system's major ring bearer?
12 July 2012, 02:02 PM ET
On July 15th, 2012, Earth's Moon will occult Jupiter and its four largest moons – Europa, Io, Callisto and Ganymede – blocking them from skywatchers' views.
11 July 2012, 01:33 PM ET
Dwarf planet Pluto has one giant moon, Charon, but now is known to have four more tiny satellites.
11 July 2012, 12:04 PM ET
The Solar System’s Runt
10 July 2012, 06:27 PM ET
The atmospheric feature could herald the start of winter in Titan's south.
10 July 2012, 04:48 PM ET
NASA's Cassini spacecraft captured images of a revolving mass of gas in the atmosphere over Titan's southern pole. This odd cloud group completed a full rotation in 9 hours – quicker that the moon's 16-day rotation period.
06 July 2012, 05:13 PM ET
From July through August, planet groupings in the pre-dawn and dusk skies will impress skywatchers around the world.
06 July 2012, 10:42 AM ET
This cool space wallpaper, a particularly strong jet stream churns through Saturn's northern hemisphere in this false-color view from NASA's Cassini spacecraft.
28 June 2012, 02:01 PM ET
The subsurface sea could contain water, and maybe even life.
27 June 2012, 07:01 AM ET
This week's night sky offers a special trio of treats.
25 June 2012, 05:36 PM ET
In constrast, jet streams on Earth derive their energy from the sun.
20 June 2012, 08:00 AM ET
During the first test of the Titan-Centaur rocket, the Centaur stage failed to ignite.
14 June 2012, 10:56 AM ET
Cassini spacecraft looks toward Titan and its dark region called Shangri-La in this stunning space wallpaper.
13 June 2012, 01:01 PM ET
The tropical lake on Titan is the size of Utah's Great Salt Lake in the United States.
24 May 2012, 06:44 AM ET
NASA's Cassini probe is preparing to tilt its orbit around Saturn dramatically.
22 May 2012, 09:46 AM ET
Tarter will begin fundraising for the SETI Institute full-time.
18 May 2012, 07:00 AM ET
Researchers are keying in on methane as a possible indicator of alien life.
07 May 2012, 07:36 AM ET
From the bright supermoon to earth-like alien planets munching on stars, it's been a busy week in space.
04 May 2012, 01:17 PM ET
The ice geysers of Enceladus and Dione's battered surface take center stage in Cassini's views.