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The Solar System According to Carolyn Porco

The Planetary Society • November 26, 2019

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

Carl Sagan • October 15, 2019

"We very much hope that NASA will be able to make an early commitment to such a mission," wrote Sagan to administrator James Beggs.

My 18-Month Affair With Titan

Ian Regan • October 11, 2018

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?

Emily Lakdawalla • May 30, 2018

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

Björn Jónsson • May 14, 2018

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

Emily Lakdawalla • April 23, 2018

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

Emily Lakdawalla • March 26, 2018

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 Lakdawalla • March 21, 2018

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

Ian Regan • October 10, 2017

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

Donna Stevens • September 27, 2017

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

Emily Lakdawalla • September 15, 2017

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

Jason Davis • September 11, 2017

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

Emily Lakdawalla • September 11, 2017

A timeline of what to expect from the great mission during its final hours.

A guide to Cassini's remaining orbits

Emily Lakdawalla • July 05, 2017

Sadly, the Cassini mission ends soon. We're halfway through the "Grand Finale" orbits. Only eleven and a half orbits remain until Cassini meets its fate on September 15. Here's a look at the great mission's final science orbits.

Saturn's small satellites, to scale

Emily Lakdawalla • May 17, 2017

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

Ian Regan • May 16, 2017

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 • May 12, 2017

Heather Hunter brings us the next installment in her series on radio detection and ranging.

Saturn and Titan in the Milky Way

Emily Lakdawalla • May 08, 2017

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

Emily Lakdawalla • April 28, 2017

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.

This weekend, it's the beginning of the end for Cassini

Jason Davis • April 19, 2017

NASA's long-lived Cassini spacecraft is about to buzz Titan for the final time, putting it on course for a spectacular mission finale that concludes in September.

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