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Jewel of Our Solar System
Adorned with thousands of beautiful ringlets, Saturn is unique among the planets. All four gas giant planets have rings -- made of chunks of ice and rock -- but none are as spectacular or as complicated as Saturn's. Like the other gas giants, Saturn is mostly a massive ball of hydrogen and helium.

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Discovery of propylene in Titan's upper atmosphere with Cassini CIRS
Discovery of propylene in Titan's upper atmosphere with Cassini CIRS
Cassini's Composite Infrared Spectrometer (CIRS) Team detected a new molecule, propylene (propene), in Titan's upper atmosphere.Read More...
Planetary Seasons
Planetary Seasons
Planetary seasons are caused by two factors: axial tilt and variable distance from the sun (orbital eccentricity).Read More...
Pale Blue Dot: Distant Spacecraft Photograph Earth
Pale Blue Dot: Distant Spacecraft Photograph Earth
Color and black-and-white images of Earth taken by two NASA interplanetary spacecraft on July 19 show our planet and its moon as bright beacons from millions of miles away in space.Read More...
The First Interplanetary Photobomb
The First Interplanetary Photobomb
Consider it the first interplanetary photobomb. On July 19th, NASA's Cassini spacecraft will photograph Earth through the rings of Saturn--and NASA wants you to jump into the shot.Read More...
Cassini to Photograph Earth From Deep Space
Cassini to Photograph Earth From Deep Space
NASA's Cassini spacecraft will photograph Saturn and its entire ring system during a total eclipse of the sun. Cassini has done this twice before during its previous 9 years in orbit, but this time will be different.Read More...
See Saturn at its Best and Brightest
See Saturn at its Best and Brightest
At the end of April, Saturn will put on a breathtaking display.Read More...
Solar System Exploration @ 50: What the Experts Picked
Research... at a Glance
Solar System Exploration @ 50: What the Experts Picked
Here is what the experts had to say about their favorite moments last 50 years of planetary robotic exploration.Read More...
NASA Celebrates Four Decades of Plucky Pioneer 11
NASA Celebrates Four Decades of Plucky Pioneer 11
Forty years ago, on April 5, 1973, a small, ambitious spacecraft launched from Cape Canaveral, heading towards the third-brightest point of light in the night sky.Read More...
50 Years of Robotic Planetary Exploration: David Kring, Senior Staff Scientist, Universities Space Research Association, Houston; Principal Investigator, LPI-JSC
50 Years of Robotic Planetary Exploration: David Kring, Senior Staff Scientist, Universities Space Research Association, Houston; Principal Investigator, LPI-JSC
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Julie Castillo-Rogez, Planetary Geophysicist at the Jet Propulsion Laboratory (JPL)
50 Years of Robotic Planetary Exploration: Julie Castillo-Rogez, Planetary Geophysicist at the Jet Propulsion Laboratory (JPL)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
State of the Solar System
State of the Solar System
As the president prepares to give his annual State of the Union Address, we offer our own update from the ongoing exploration of our cosmic neighborhood.Read More...
50 Years of Robotic Planetary Exploration: Neil Gehrels, Astrophysicist at NASA's Goddard Spaceflight Center
50 Years of Robotic Planetary Exploration: Neil Gehrels, Astrophysicist at NASA's Goddard Spaceflight Center
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
Earth at Perihelion
Earth at Perihelion
In January, our planet made its annual closest approach to the sun. But don't expect things to warm up.Read More...
50 Years of Robotic Planetary Exploration: Claudia Alexander, Project Scientist at the Jet Propulsion Laboratory
50 Years of Robotic Planetary Exploration: Claudia Alexander, Project Scientist at the Jet Propulsion Laboratory
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Ashley Stroupe (Robotics Software Engineer / Mars Rover Driver at the Jet Propulsion Laboratory)
50 Years of Robotic Planetary Exploration: Ashley Stroupe (Robotics Software Engineer / Mars Rover Driver at the Jet Propulsion Laboratory)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Nancy Grace Roman (Retired Chief of NASA's Astronomy and Relativity Programs at NASA Headquarters)
50 Years of Robotic Planetary Exploration: Nancy Grace Roman (Retired Chief of NASA's Astronomy and Relativity Programs at NASA Headquarters)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Jim Kasting (Distinguished Professor of Geoscience at Penn State University)
50 Years of Robotic Planetary Exploration: Jim Kasting (Distinguished Professor of Geoscience at Penn State University)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Ralph Carruth (Manager, Materials and Processes Laboratory at NASA's Marshall Space Flight Center)
50 Years of Robotic Planetary Exploration: Ralph Carruth (Manager, Materials and Processes Laboratory at NASA's Marshall Space Flight Center)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Amanda Hendrix (Planetary Scientist at the Jet Propulsion Laboratory)
50 Years of Robotic Planetary Exploration: Amanda Hendrix (Planetary Scientist at the Jet Propulsion Laboratory)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Suzanne Dodd (Project Manager for the Voyager Interstellar Mission at the Jet Propulsion Laboratory)
50 Years of Robotic Planetary Exploration: Suzanne Dodd (Project Manager for the Voyager Interstellar Mission at the Jet Propulsion Laboratory)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Dave Doody (Realtime Flight Operations Lead Engineer at the Jet Propulsion Laboratory)
50 Years of Robotic Planetary Exploration: Dave Doody (Realtime Flight Operations Lead Engineer at the Jet Propulsion Laboratory)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
Is it Snowing Microbes on Enceladus?
Is it Snowing Microbes on Enceladus?
March 27, 2012: There's a tiny moon orbiting beyond Saturn's rings that's full of promise, and maybe -- just maybe -- microbes.Read More...
50 Years of Robotic Planetary Exploration: Michelle Thaller (Assistant Director of Science for Communications at the Goddard Space Flight Center)
50 Years of Robotic Planetary Exploration: Michelle Thaller (Assistant Director of Science for Communications at the Goddard Space Flight Center)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Jeff Cuzzi (Research Scientist at NASA Ames Research Center)
50 Years of Robotic Planetary Exploration: Jeff Cuzzi (Research Scientist at NASA Ames Research Center)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
Radioisotope Power Systems:  Power to Explore
Research... at a Glance
Radioisotope Power Systems: Power to Explore
For more than four decades, Radioisotope Power Systems (RPS) have played a critical role in the exploration of space, enabling missions of scientific discovery to destinations across the solar system.Read More...
50 Years of Robotic Planetary Exploration: Fran Bagenal (Professor of Astrophysical and Planetary Sciences at the University of Colorado, Boulder and Co-Investigator for the New Horizons Mission)
50 Years of Robotic Planetary Exploration: Amy Simon-Miller (Astrophysicist at the Goddard Space Flight Center)
50 Years of Robotic Planetary Exploration: Amy Simon-Miller (Astrophysicist at the Goddard Space Flight Center)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
 
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Previous
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Discovery of propylene in Titan's upper atmosphere with Cassini CIRS
Discovery of propylene in Titan's upper atmosphere with Cassini CIRS
Cassini's Composite Infrared Spectrometer (CIRS) Team detected a new molecule, propylene (propene), in Titan's upper atmosphere.Read More...
Planetary Seasons
Planetary Seasons
Planetary seasons are caused by two factors: axial tilt and variable distance from the sun (orbital eccentricity).Read More...
Pale Blue Dot: Distant Spacecraft Photograph Earth
Pale Blue Dot: Distant Spacecraft Photograph Earth
Color and black-and-white images of Earth taken by two NASA interplanetary spacecraft on July 19 show our planet and its moon as bright beacons from millions of miles away in space.Read More...
The First Interplanetary Photobomb
The First Interplanetary Photobomb
Consider it the first interplanetary photobomb. On July 19th, NASA's Cassini spacecraft will photograph Earth through the rings of Saturn--and NASA wants you to jump into the shot.Read More...
Cassini to Photograph Earth From Deep Space
Cassini to Photograph Earth From Deep Space
NASA's Cassini spacecraft will photograph Saturn and its entire ring system during a total eclipse of the sun. Cassini has done this twice before during its previous 9 years in orbit, but this time will be different.Read More...
See Saturn at its Best and Brightest
See Saturn at its Best and Brightest
At the end of April, Saturn will put on a breathtaking display.Read More...
Solar System Exploration @ 50: What the Experts Picked
Research... at a Glance
Solar System Exploration @ 50: What the Experts Picked
Here is what the experts had to say about their favorite moments last 50 years of planetary robotic exploration.Read More...
NASA Celebrates Four Decades of Plucky Pioneer 11
NASA Celebrates Four Decades of Plucky Pioneer 11
Forty years ago, on April 5, 1973, a small, ambitious spacecraft launched from Cape Canaveral, heading towards the third-brightest point of light in the night sky.Read More...
50 Years of Robotic Planetary Exploration: David Kring, Senior Staff Scientist, Universities Space Research Association, Houston; Principal Investigator, LPI-JSC
50 Years of Robotic Planetary Exploration: David Kring, Senior Staff Scientist, Universities Space Research Association, Houston; Principal Investigator, LPI-JSC
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Julie Castillo-Rogez, Planetary Geophysicist at the Jet Propulsion Laboratory (JPL)
50 Years of Robotic Planetary Exploration: Julie Castillo-Rogez, Planetary Geophysicist at the Jet Propulsion Laboratory (JPL)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
State of the Solar System
State of the Solar System
As the president prepares to give his annual State of the Union Address, we offer our own update from the ongoing exploration of our cosmic neighborhood.Read More...
50 Years of Robotic Planetary Exploration: Neil Gehrels, Astrophysicist at NASA's Goddard Spaceflight Center
50 Years of Robotic Planetary Exploration: Neil Gehrels, Astrophysicist at NASA's Goddard Spaceflight Center
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
Earth at Perihelion
Earth at Perihelion
In January, our planet made its annual closest approach to the sun. But don't expect things to warm up.Read More...
50 Years of Robotic Planetary Exploration: Claudia Alexander, Project Scientist at the Jet Propulsion Laboratory
50 Years of Robotic Planetary Exploration: Claudia Alexander, Project Scientist at the Jet Propulsion Laboratory
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Ashley Stroupe (Robotics Software Engineer / Mars Rover Driver at the Jet Propulsion Laboratory)
50 Years of Robotic Planetary Exploration: Ashley Stroupe (Robotics Software Engineer / Mars Rover Driver at the Jet Propulsion Laboratory)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Nancy Grace Roman (Retired Chief of NASA's Astronomy and Relativity Programs at NASA Headquarters)
50 Years of Robotic Planetary Exploration: Nancy Grace Roman (Retired Chief of NASA's Astronomy and Relativity Programs at NASA Headquarters)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Jim Kasting (Distinguished Professor of Geoscience at Penn State University)
50 Years of Robotic Planetary Exploration: Jim Kasting (Distinguished Professor of Geoscience at Penn State University)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Ralph Carruth (Manager, Materials and Processes Laboratory at NASA's Marshall Space Flight Center)
50 Years of Robotic Planetary Exploration: Ralph Carruth (Manager, Materials and Processes Laboratory at NASA's Marshall Space Flight Center)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Amanda Hendrix (Planetary Scientist at the Jet Propulsion Laboratory)
50 Years of Robotic Planetary Exploration: Amanda Hendrix (Planetary Scientist at the Jet Propulsion Laboratory)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Suzanne Dodd (Project Manager for the Voyager Interstellar Mission at the Jet Propulsion Laboratory)
50 Years of Robotic Planetary Exploration: Suzanne Dodd (Project Manager for the Voyager Interstellar Mission at the Jet Propulsion Laboratory)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Dave Doody (Realtime Flight Operations Lead Engineer at the Jet Propulsion Laboratory)
50 Years of Robotic Planetary Exploration: Dave Doody (Realtime Flight Operations Lead Engineer at the Jet Propulsion Laboratory)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
Is it Snowing Microbes on Enceladus?
Is it Snowing Microbes on Enceladus?
March 27, 2012: There's a tiny moon orbiting beyond Saturn's rings that's full of promise, and maybe -- just maybe -- microbes.Read More...
50 Years of Robotic Planetary Exploration: Michelle Thaller (Assistant Director of Science for Communications at the Goddard Space Flight Center)
50 Years of Robotic Planetary Exploration: Michelle Thaller (Assistant Director of Science for Communications at the Goddard Space Flight Center)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Jeff Cuzzi (Research Scientist at NASA Ames Research Center)
50 Years of Robotic Planetary Exploration: Jeff Cuzzi (Research Scientist at NASA Ames Research Center)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
Radioisotope Power Systems:  Power to Explore
Research... at a Glance
Radioisotope Power Systems: Power to Explore
For more than four decades, Radioisotope Power Systems (RPS) have played a critical role in the exploration of space, enabling missions of scientific discovery to destinations across the solar system.Read More...
50 Years of Robotic Planetary Exploration: Fran Bagenal (Professor of Astrophysical and Planetary Sciences at the University of Colorado, Boulder and Co-Investigator for the New Horizons Mission)
50 Years of Robotic Planetary Exploration: Amy Simon-Miller (Astrophysicist at the Goddard Space Flight Center)
50 Years of Robotic Planetary Exploration: Amy Simon-Miller (Astrophysicist at the Goddard Space Flight Center)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
 
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