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.
14 April 2010, 07:37 PM ET
Auroras of Saturn captured by Hubble. Amazing views from the Wide Field Infrared Survey Explorer (WISE) and the Spitzer Space Telescope. Listening for Phoenix on Mars and Buzz Aldrin's exit from Dancing with Stars.
14 April 2010, 07:02 PM ET
Saturn ice moon Enceladus creates ripples and bubbles in plasma surrounding giant planet.
14 April 2010, 12:46 PM ET
NASA's Cassini spacecraft has captured images of lightning on Saturn. The images have allowed scientists to create the first movie showing lightning flashing on another planet.
13 April 2010, 10:11 AM ET
Cassini double flyby of Saturn moons Titan and Dione yields new images, data.
10 April 2010, 07:02 PM ET
If life evolved on Saturn's moon Titan, it would likely involve chemicals that are noxious and disgusting to humans.
06 April 2010, 12:46 PM ET
Saturn's moon Prometheus is showing a new side of itself in recent pictures from the Cassini probe.
06 April 2010, 07:51 AM ET
Cassini spacecraft will help scientists determine the age and mass of Saturn's rings.
05 April 2010, 01:42 PM ET
A lucky cosmic alignment will allow NASA's Cassini spacecraft to swing up close to two of Saturn's moons back-to-back this week.
30 March 2010, 10:46 AM ET
A Pac-Man-shaped pattern shows up on the surface of Saturn's moon Mimas in new temperature maps.
23 March 2010, 07:49 AM ET
Saturn's giant moon Titan is so cold that water is frozen as hard as granite, but methane is a liquid. Scientists wonder whether there could also be life.
19 March 2010, 11:38 AM ET
Saturn arrives at opposition to the sun on the American evening of Sunday, March 21, making for great viewing.
18 March 2010, 02:13 PM ET
Six years of Cassini observations shed light on Saturn's rings, magnetic shield.
10 March 2010, 08:23 AM ET
Saturn will be in opposition on Monday March 22 and visible all night.
27 February 2010, 06:08 AM ET
Jupiter, the largest planet in the solar system, is about to welcome a robotic visitor in the form of NASA’s New Horizons probe on Wednesday.
26 February 2010, 08:22 AM ET
Since last summer, the dominant evening planet was Jupiter, but now Venus has emerged.
24 February 2010, 11:42 AM ET
Cassini checks out Mimas, Mars Express takes a look at Phobos, Spirit is stuck in the sand and will have to ride out the Martian winter and Chandra shows us a supernova from the Andromeda galaxy.
24 February 2010, 08:59 AM ET
A full moon flooding the sky with light is an opportunity to identify the ecliptic, the path of the planets.
19 February 2010, 05:02 PM ET
Prometheus, Saturn's moon, appears to float toward the viewer in this 3-D rendering.
11 February 2010, 10:11 AM ET
Hubble films Saturn edge-on during equinox, sees auroras over poles.
11 February 2010, 05:07 AM ET
Hubble captured Saturn's equinox in 2009, including auroral displays over both the planet's poles.
09 February 2010, 10:35 AM ET
Evidence suggests liquid water exists inside Saturn's moon Enceladus.
28 January 2010, 06:01 PM ET
New images from NASA's Cassini spacecraft offer close-ups of two of Saturn's moons.
28 January 2010, 04:19 PM ET
Scientists are cooking up a replica of the surface of Saturn's moon Titan to learn more about the lakes recently discovered there.
14 January 2010, 06:58 AM ET
Icy crystals jet skyward from "tiger stripe" features near the south pole of this small moon. But are these geysers proof of a subterranean ocean?
11 January 2010, 12:29 PM ET
The second largest moon in our Solar System has one of the supposed primary requirements for life: an active liquid cycle. But Titan's liquid isn't water.
23 December 2009, 11:12 AM ET
Cassini Imaging Team Leader Carolyn Porco writes: "imagine yourself a Saturnian companion gliding among these distant worlds. Someday...Earthlings will be
there, in person, to witness these marvels first hand."
23 December 2009, 12:22 AM ET
From snowfalls on Mars, to the polar craters of the moon, take a tour of the solar system’s chilliest spots.
21 December 2009, 02:11 PM ET
Cassini spacecraft spots glint of sunlight from methane lake on Saturn's moon Titan.