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Small BodiesStories, updates, insights, and original analysis from The Planetary Society.
The Next 10 Years
Six scientists share the major planetary science discoveries of the past decade, and the questions that will drive the next 10 years of solar system exploration.
The Solar System According to Carolyn Porco
The leader of the Cassini spacecraft imaging team discusses pale blue dots, life on Enceladus, terraforming Mars, Pluto, Carl Sagan, and more.
In 1983, Carl Sagan Urged NASA to Send a Mission to Saturn and Titan
Long before the Cassini-Hugygens spacecraft launched in 1997 to explore Saturn and Titan, The Planetary Society urged NASA to make the mission a reality.
My 18-Month Affair With Titan
Ian Regan, producer of the Titan segment of In Saturn's Rings, describes the meticulous process of creating the stunning visuals of this shrouded moon.
How long is a day on Saturn?
One of the Cassini mission's goals was to figure out how long a day on Saturn is. We still don't know. A new paper reports a measurement of the rotation period of Saturn that is different from past measurements.
Juno meets Cassini: A new merged global map of Jupiter
The Juno spacecraft that is currently orbiting Jupiter has obtained the first good images of Jupiter's polar regions. I am presenting here a combined global map of Jupiter, made from a Cassini map I made for the equatorial and temperate regions and polar maps made from the Juno JunoCam and JIRAM polar images.
Moon Monday: Prometheus
Happy Monday! Here's a picture of Prometheus. You may think it's a picture of Saturn. Look hard, toward the bottom, and you'll see Prometheus, doing its part to keep the F ring in line.
#MoonMon: Io's pretty plumes
On this Moon Monday, I'm featuring an animation processed by Gordan Ugarkovic, showing Jupiter's volcanic moon Io with its prominent plumes.
#LPSC2018: Titan Is Terrific!
Emily's first report from the Lunar and Planetary Science Conference is on the solar system's most atmospheriffic satellite, Saturn's moon Titan.
Cassini’s Last Dance With Saturn: The Farewell Mosaic
Amateur image processor Ian Regan shares the story of processing Cassini's final images of the ringed planet.
Fall 2017 issue of The Planetary Report now available
The Fall 2017 issue of The Planetary Report is in the mail and available online now to our members!
Cassini: The dying of the light
Cassini is no more. At 10:31 according to its own clock, its thrusters could no longer hold its radio antenna pointed at Earth, and it turned away. A minute later, it vaporized in Saturn’s atmosphere. Its atoms are part of Saturn now.
And then there was one
The end of the Cassini mission is a harbinger for a looming gap in outer planets exploration missions.
What to expect during Cassini's final hours
A timeline of what to expect from the great mission during its final hours.
A guide to Cassini's remaining orbits
Sadly, the Cassini mission ends soon. We're halfway through the
Saturn's small satellites, to scale
Emily shares another of her popular size comparisons of solar system bodies, taking advantage of Cassini's recent views of Saturn's tiniest moons.
Cassini's 'Grand Finale' Portrait of Saturn
Amateur image processor Ian Regan shares a stunning mosaic of Saturn in all its ringed glory.
Radar in Earth and Planetary Science, Part 2
Heather Hunter brings us the next installment in her series on radio detection and ranging.
Saturn and Titan in the Milky Way
An unusual photo of Saturn by astrophotographer Damian Peach shows the planet and its largest moon nestled among the star-filled lane of the Milky Way.
Trusty Cassini survives first dive between Saturn and its rings
Cheers erupted in the Von Karman auditorium at the Jet Propulsion Laboratory early Thursday morning as a squiggly green line on a graph developed a crisp, tall peak, signifying that the Cassini spacecraft was calling home after surviving its first plunge between Saturn and its ring system.