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Stories, updates, insights, and original analysis from The Planetary Society.
Happy Christmas on Mars!
This was so cute I had to repost it -- and record it too.
Planetary Society Advent Calendar for December 24: Ganymede
I think if you polled most space fans about their favorite moons of Jupiter, Ganymede would come in a consistent third behind Europa and Io. It's just not fair.
Planetary Society Advent Calendar for December 25: Double planet
To those of you who celebrate the holiday, merry Christmas! I hope Santa was good to you.
Awesome Cassini mutual event movies
I love posting animations of Cassini images that I compose from frames grabbed from the mission's raw images website, but they are shoddy compared to the versions that eventually come out from the mission's imaging team.
Planetary Society Advent Calendar for December 23: Deimos
Mars' moon Deimos never gets as much love as Phobos.
Planetary Society Advent Calendar for December 22: Venus
Venus is such a beautiful, brilliant light in the sky. (When it's up; just now Venus is actually near solar conjunction, so we'll have to wait a bit for it to grace the heavens.)
Planetary Society Advent Calendar for December 21: Miranda
Miranda is the one moon of Uranus for which we have very good images from Voyager 2, and that was a stroke of luck, because low-resolution shots of all of Uranus' moons would have told us that it was, geologically speaking, the most dramatic of the five biggest ones.
Planetary Society Advent Calendar for December 20: Iapetus
Iapetus! I'm always interested in Cassini images, but five years ago this month I was refreshing the Cassini raw images website several times a day, eagerly anticipating the mission's first good encounter with Iapetus.
Planetary Society Advent Calendar for December 19: Eros
Not quite ten years ago, the Near Earth Rendezvous (NEAR) spacecraft arrived at the near-Earth asteroid Eros. NEAR accomplished many firsts.
Planetary Society Advent Calendar for December 18: Neptune
Here's Neptune, but not quite like you've ever seen it before.
Cassini VIMS sees the long-awaited glint off a Titan lake
The Cassini mission announced today the first observation of a specular reflection off of a lake on Titan. A specular reflection is a mirror-like flash, and you only get one when you have a mirror-like surface -- very, very smooth.
Watch that front wheel spin!
Holy cow, look at that right front wheel spin. I am alternately amazed and horrified by this animation.
Planetary Society Advent Calendar for December 17: Proteus
Proteus is a weird name for this world. It's the second-largest moon of Neptune, and so it's named (as are all of Neptune's moons) for deities associated with the sea.
Planetary Society Advent Calendar for December 16: Mimas
Mimas is the anti-Enceladus.
Two cool discoveries today: icy-hot exoplanet and smallest ever Kuiper Belt object
There are two cool stories circulating today on the theme of discovering new places in the cosmos.
Class announcement: How to play with Mars Express VMC images
Those of you who follow me on Twitter know that I've been fiddling with images from the Mars Webcam, more officially known as the Mars Express Visual Monitoring Camera (VMC), for the last couple of weeks.
Planetary Society Advent Calendar for December 15: Mars
We have three orbiters and two rovers currently exploring Mars, each of which returns breathtaking photos on a daily basis.
A teeny weeny bit of movement in Spirit's right front wheel
The ever-vigilant Doug Ellison just posted this animation, which really actually does show a teeny tiny bit of motion in the right front wheel. If you don't notice any motion, look closer.
Planetary Society Advent Calendar for December 14: The Moon
The Moon is the most familiar of the objects in the heavens.
Planetary Society Advent Calendar for December 13: Dactyl
If you don't think Pluto gets enough respect, just imagine what it's like to be a satellite of an asteroid.



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