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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 • 2

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 • 1

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 • 1

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 • 12

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 • 1

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.

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