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Stories, updates, insights, and original analysis from The Planetary Society.
Two Months from Pluto!
Two months. Eight and half weeks. 58 days. It's a concept almost too difficult to grasp: we are on Pluto's doorstep.
New Horizons spots Kerberos and Styx
New Horizons has now spotted every one of Pluto's satellites...all the ones we know about, that is.
New Horizons sees surface features on Pluto, begins raw image release
Today the New Horizons team released a new animation of images taken on approach to Pluto. The animation clearly shows how Pluto wobbles around the Pluto-Charon barycenter. It also shows something more exciting to the scientists: variations in brightness across the surface of Pluto. They also began releasing raw images to the Internet.
Looking Down On Jupiter's North Pole
Ted Stryk shares the most direct view of a Jovian pole ever captured by a spacecraft.
New Horizons One Earth Message
The One Earth Message Project is going to send a message to the stars, and we invite members of the Planetary Society to join us in this historic endeavor.
A few gems from the latest Cassini image data release
I checked out the latest public image release from Cassini and found an awesome panorama across Saturn's rings, as well as some pretty views looking over Titan's north pole.
What Color Does the Internet Think Pluto Is?
Astronomers have known for a long time that Pluto’s surface is reddish, so where did the common idea that Pluto is blue come from?
New views of three worlds: Ceres, Pluto, and Charon
New Horizons took its first color photo of Pluto and Charon, while Dawn obtained a 20-frame animation looking down on the north pole of a crescent Ceres.
NASA's Mission to Europa May Get More Interesting Still
NASA officials have asked their European counterparts if they would like to propose contributing a small probe to NASA's Europa mission planned for the mid-2020s.
Pretty Cassini pictures: animation of Iapetus' north pole, and other fun
Now that Cassini has returned to Saturn's equatorial plane, it has lots of opportunities to observe Saturn's moons. For about a week, Cassini has been taking regular sets of images of Iapetus, which I've assembled into an animation.
Ceres Gets Real; Pluto Lurks
Although we are still along way from understanding this fascinating little body, Ceres is finally becoming a real planet with recognizable features! And that's kinda cool.
LPSC 2015: Aeolian Processes on Mars and Titan
Planetary scientist Nathan Bridges reports on results from the Lunar and Planetary Science Conference about the action of wind on the surfaces of Mars and Titan.
Prometheus, Pandora, and the braided F ring in motion
Cassini recently took a long, high-resolution movie of the F ring, catching a view of its ringlets, clumps, and streamers, and two potato-shaped moons, Prometheus and Pandora.
The Mapping of Pluto Begins Today
When New Horizons flies past Pluto in July, we will see a new, alien landscape in stark detail. At that point, we will have a lot to talk about. The only way we can talk about it is if those features, whatever they turn out to be, have names.
What to expect when you're expecting a flyby: Planning your July around New Horizons' Pluto pictures
As New Horizons approaches Pluto, when will the images get good? In this explainer, I tell you what images will be coming down from Pluto, when. Mark your calendars!
A Sky Full of Stars
In pictures of the planets, the stars aren't usually visible. But when they do appear, they're spectacular.
Pluto Science, on the Surface
New Horizons' Principal Investigator Alan Stern gives an update on the mission's progress toward Pluto.
At last, Ceres is a geological world
I've been resisting all urges to speculate on what kinds of geological features are present on Ceres, until now. Finally, Dawn has gotten close enough that the pictures it has returned show geology: bright spots, flat-floored craters, and enigmatic grooves.
New Horizons spots Nix and Hydra circling Pluto and Charon
A series of images just sent to Earth from New Horizons clearly shows Pluto's moons Nix and Hydra orbiting the Pluto-Charon binary.
Mapping Europa
Several global maps have been made of Europa, but amateur image processor Björn Jónsson felt they could be improved—so he decided to make a new one.



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