25 May 2007, 06:59 AM ET
With two full Moons this month, the second is blue. Why?
22 May 2007, 03:00 PM ET
Saturnâ€™s largest ring might appear solid when viewed from Earth, but closer inspection by NASAâ€™s Cassini spacecraft reveal it is composed of tightly packed clumps of particles separated by nearly empty gaps.
18 May 2007, 06:03 AM ET
Four naked-eye planets visible beginning about 45 minutes after sundown.
16 May 2007, 01:01 PM ET
Tidal heating of Enceladus might be causing fractures to vent material into space.
08 May 2007, 01:42 PM ET
Giant rotating storms, are the "engine" powering Saturn's jet stream winds.
24 April 2007, 06:01 AM ET
Saturn's icy moon Dione may have much in common with its active sibling Enceladus.
27 March 2007, 01:18 PM ET
One of the most bizarre weather patterns ever spotted has been photographed at Saturn, where astronomers have spotted a huge, six-sided feature circling the north pole.
26 March 2007, 12:21 AM ET
The discovery of a new impact crater on Titan's surface, only the fourth one known, underscores the oddity that the Saturnian moon has so few craters, which leads scientists to believe the moon's surface is fairly young.
22 March 2007, 09:54 PM ET
Geyser activity from Saturn's small moon Enceladus weighs down the big planet's magnetic field so much that the field rotates more slowly than Saturn itself, new observations reveal.
20 March 2007, 03:46 PM ET
Astronomers have created three stunning movies of Saturn and its rings, using special techniques to extend still images taken by the Hubble Space Telescope into moving pictures that show the ringed planet in novel splendor.
13 March 2007, 03:13 PM ET
The Cassini spacecraft has found evidence for seas, likely filled with liquid methane or ethane, in the high northern latitudes of Saturn's moon Titan. One such feature is larger than any of the Great Lakes of North America and is about the same size as s
12 March 2007, 04:59 PM ET
Scientists believe heat from radioactive decay inside a tiny, icy Saturn moon shortly after it formed billions of years ago may explain why geysers are erupting from the surface today.
01 March 2007, 01:33 PM ET
The Cassini spacecraft has captured a fresh view of Saturn from high above the planet's gorgeous rings.
28 February 2007, 07:16 AM ET
Visions of a volcanic plume spewing out of Jupiter’s moon Io and a swirling storm were among the first images returned by a NASA probe as it approached an early-morning swing past the gas giant today.
08 February 2007, 02:03 PM ET
Icy particles ejected from a geyser on Saturn's moon Enceladus is blanketing other nearby satellites in reflective dust and ice, making them unusually bright, a new study suggest.
02 February 2007, 10:43 AM ET
A mammoth cloud recently spotted on Saturnï¿½s moon Titan is half the size of the contiguous United States might be whatï¿½s filling up lakes discovered there last year.
02 February 2007, 12:45 AM ET
Watching the full Moon rise over the east-northeast horizon on Friday evening, you will probably notice Saturn shining sedately just above and to the Moon's right.
29 January 2007, 02:30 PM ET
My first glimpse of the ringed planet through a friend’s telescope many years ago got me hooked on this hobby. Decades later, an encounter with Saturn on a steady night still takes my breath away.
18 January 2007, 04:57 PM ET
A NASA probe hurtling towards Pluto will hit the accelerator next month when it flies past the planetary giant Jupiter.
03 January 2007, 01:01 PM ET
Images shot last summer by NASA's Cassini spacecraft provide the strongest evidence yet that Titan, a saturnian moon and one of the most Earth-like celestial body in the solar system, is dotted with a multitude of liquid lakes.
14 December 2006, 02:04 PM ET
The enormous plume erupting on Saturn’s moon, Enceladus, may be emanating from a substance much colder than liquid water, scientists announced today.
30 November 2006, 08:13 AM ET
As we search for extraterrestrial life, Earth in some sense always provides our framework. The data indicate that life does in fact exist on this planet, and it existed here sometime before about 3.5 billion years ago (give or take a couple hundred milli
17 November 2006, 02:14 PM ET
09 November 2006, 02:59 PM ET
NASA's Cassini spacecraft has seen something never before seen on another planet -- a hurricane-like storm at Saturn's south pole with a well-developed eye, ringed by towering clouds.
08 November 2006, 06:04 AM ET
The Cassini spacecraft is roughly halfway through its looping voyage of the Saturn system and is continuing to return a bounty of data on the ringed planet and its moons. Yet all journeys must have an end and Cassini's eventual fate is now being discussed
02 November 2006, 10:41 AM ET
HONOLULU (AP) – Scientists studying the atmosphere of Saturn's moon, Titan, hope their research will reveal clues about the nature of Earth's atmosphere billions of years ago.
11 October 2006, 05:13 PM ET
NASA scientists discover two new rings around Saturn, and think the planet’s missing moons could be lurking nearby.
11 October 2006, 01:08 PM ET
Titan’s surface could be covered by dusty dunes composed of ethane and smog particles.
31 August 2006, 02:54 PM ET
The shadow cast by a moon as it floated through space above the blue-green cloud tops of Uranus was recently captured for the first time by NASA's Hubble Space Telescope.
28 July 2006, 11:55 AM ET
One of the major goals of NASA's Cassini mission was to find lakes or seas on Saturn's moon Titan. Now scientist say they've found lakes.
19 July 2006, 04:47 PM ET
New radar images of Saturn's moon Titan reveal dunes, hills, valleys and rivers that scientist say look a lot like home.
30 June 2006, 07:19 PM ET
CAPE CANAVERAL, Fla. – NASA’s next rockets to reach towards the Moon and Mars finally have a name: Ares.
09 June 2006, 03:10 PM ET
Two bright planets are approaching each other in our evening sky.
05 June 2006, 11:35 AM ET
They look like planets but are born like stars. And now astronomers say these planemos have the material needed to form satellites. Yes, it's all very confusing.
31 May 2006, 03:05 PM ET
Saturn's moon Enceladus might have rolled over on its side sometime in the past, a suggestion that would account for a strange finding made by the Cassini spacecraft.
30 May 2006, 04:19 PM ET
Something remarkable is about to happen in the evening sky. Three planets and a star cluster are converging for a close encounter you won't want to miss.