30 September 2009, 07:47 AM ET
29 September 2009, 01:24 PM ET
Night Sky column for September 25.
28 September 2009, 08:55 AM ET
Water is all over the solar system and the rest of the galaxy. What's it mean to the search for life?
28 September 2009, 08:55 AM ET
Water is all over the solar system and the rest of the galaxy. What's it mean to the search for life?
28 September 2009, 08:55 AM ET
Water is all over the solar system and the rest of the galaxy. What's it mean to the search for life?
25 September 2009, 11:02 AM ET
The recent discovery of water molecules on the moon could make our celestial neighbor a more attractive candidate for a future manned mission.
24 September 2009, 02:24 PM ET
23 September 2009, 06:17 PM ET
Observations from three spacecraft show signal of water across moon's surface.
21 September 2009, 06:49 PM ET
Stunning new views of Saturn's rings from the Cassini spacecraft have revealed odd ripples as tall as the Rocky Mountains.
21 September 2009, 06:49 PM ET
Stunning new views of Saturn's rings from the Cassini spacecraft have revealed odd ripples as tall as the Rocky Mountains.
21 September 2009, 06:49 PM ET
Stunning new views of Saturn's rings from the Cassini spacecraft have revealed odd ripples as tall as the Rocky Mountains.
21 September 2009, 06:49 PM ET
Stunning new views of Saturn's rings from the Cassini spacecraft have revealed odd ripples as tall as the Rocky Mountains.
14 September 2009, 09:42 PM ET
Lightning storm on Saturn becomes longest continually observed storm in solar system.
14 September 2009, 09:42 PM ET
Lightning storm on Saturn becomes longest continually observed storm in solar system.
08 September 2009, 08:50 AM ET
NASA released new pictures of Neptune’s freezing moon Triton, made from data taken by the Voyager 2 spacecraft on its way out of the solar system in 1989.
28 August 2009, 02:17 PM ET
An unusual celestial vanishing act will take place the night of Sept. 2 when all four of Jupiter's largest moons will be hidden from our view.
24 August 2009, 06:42 AM ET
Scientists are still uncovering the mystery behind the origins of each of Saturn's proud rings.
24 August 2009, 06:42 AM ET
Scientists are still uncovering the mystery behind the origins of each of Saturn's proud rings.
12 August 2009, 01:07 PM ET
Storm clouds were spotted in the usually-clear tropical latitudes of Saturn's moon Titan.
12 August 2009, 01:07 PM ET
Storm clouds were spotted in the usually-clear tropical latitudes of Saturn's moon Titan.
10 August 2009, 09:01 AM ET
In a celestial feat any magician would appreciate, Saturn will make its wide but thin ring system disappear from our view Aug. 11.
10 August 2009, 09:01 AM ET
In a celestial feat any magician would appreciate, Saturn will make its wide but thin ring system disappear from our view Aug. 11.
06 August 2009, 02:03 PM ET
Weather and surface processes on Titan are Earth-like but in much colder environment.
06 August 2009, 02:03 PM ET
Weather and surface processes on Titan are Earth-like but in much colder environment.
06 August 2009, 02:03 PM ET
Weather and surface processes on Titan are Earth-like but in much colder environment.
25 June 2009, 08:33 AM ET
A new study has found that hydrocarbon lakes on Titan could be good hosts for a certain type of chemistry that could lead to life.
25 June 2009, 08:33 AM ET
A new study has found that hydrocarbon lakes on Titan could be good hosts for a certain type of chemistry that could lead to life.
25 June 2009, 08:33 AM ET
A new study has found that hydrocarbon lakes on Titan could be good hosts for a certain type of chemistry that could lead to life.
25 June 2009, 08:33 AM ET
A new study has found that hydrocarbon lakes on Titan could be good hosts for a certain type of chemistry that could lead to life.
24 June 2009, 01:03 PM ET
Saturn's sixth largest moon could support an ocean beneath its icy surface.
24 June 2009, 01:03 PM ET
Saturn's sixth largest moon could support an ocean beneath its icy surface.
22 June 2009, 05:40 PM ET
As Saturn approaches its equinox — when the sun passes through the plane of the planet's rings — NASA's Cassini spacecraft has captured rare scenes of moons eclipsing each other and casting long shadows against the rings.
22 June 2009, 05:40 PM ET
As Saturn approaches its equinox — when the sun passes through the plane of the planet's rings — NASA's Cassini spacecraft has captured rare scenes of moons eclipsing each other and casting long shadows against the rings.
22 June 2009, 05:40 PM ET
As Saturn approaches its equinox — when the sun passes through the plane of the planet's rings — NASA's Cassini spacecraft has captured rare scenes of moons eclipsing each other and casting long shadows against the rings.
22 June 2009, 05:40 PM ET
As Saturn approaches its equinox — when the sun passes through the plane of the planet's rings — NASA's Cassini spacecraft has captured rare scenes of moons eclipsing each other and casting long shadows against the rings.
22 June 2009, 08:55 AM ET
First: The shadow of Saturn's moon Tethys seems to disappear as it crosses the planet's rings. Second: As Saturn's moon Enceladus eclipses its neighbor Mimas, Cassini records a scene possible only around the time of Saturn's approaching equinox.
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