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All
Stories, updates, insights, and original analysis from The Planetary Society.
Einstein still rules
News from 7.2 billion light years away demonstrates that some things in this shifting universe are relatively reliable.
What "phase angle" means
As is probably obvious by now, I love playing with spacecraft image data. I am always looking for excuses to dive into space image archives to unearth images of stuff in space that haven't really been seen by very many people before.
That psychedelic M-cubed Moon movie explained
Advance warning: this entry may be a little technical for some.
The "Water on the Moon" Hoopla, Part 1: There's water on the Moon!
For a couple of weeks now, I've been hearing rumors about an upcoming announcement concerning Chandrayaan-1 Moon Mineralogy Mapper (
The "Water on the Moon" Hoopla, Part 2: The murkier part of the story
How much water is there on the Moon, and is it in a form that human explorers could use? This part of the story has many more questions and many fewer definite conclusions.
Dunes in the Outback Red Center
Jani talks about the importance of understanding analogs we can easily visit on Earth to processes happening across the solar system.
Cassini RADAR continues to gaze at Titan
The Cassini spacecraft made its 59th flyby of Titan, Saturn's largest moon, on Friday, July 24, and in the last few hours we have received images from the RADAR instrument in SAR (Synthetic Aperture Radar) mode.
Designing the Cassini Tour
Each Titan flyby is not a fork in the road, but rather a Los Angeles style cloverleaf in terms of the dizzying number of possible destinations. So how did our current and future plans for the path of the Cassini spacecraft come to be? That's the question Dave Seal put to me since that's my job -- I am a tour designer.
Canto II: Titan's Atmosphere and the Solar Cycle
David Seal explains the complications for Cassini coming from Titan's atmosphere and Solar Cycle.
Connections
David Seal muses on his time as the mission planner for Cassini, and the history behind its name, and astronomy in Rome.
Water and the Curiosity Landing Site Candidates
Water and the Curiosity Landing Site Candidates
Mars: "Follow the Water" Is Not Dead
Sometimes it is a bit awkward being a planetary scientist.
Ever Plan Ahead? How About Six Years Ahead?
Despite still being more than six years and just over 18 Astronomical Units from the Pluto system, the project team for New Horizons is conducting the second and final portion of our Pluto Encounter Preliminary Design Review (EPDR) tomorrow and the next day.
Fly me to the Moon...
Jim Bell describes his proposal to join the Lunar Reconnaissance Orbiter Cameras science team.
There's more to the Hayabusa story
After posting my brief
On the pronunciation of "Uranus"
On the pronunciation of
Why is only half of Mars magnetized?
An article in the September 26 issue of Science neatly explains why only the southern half of Mars is strongly magnetized.
White Rock through the Ages: Mars Reconnaissance Orbiter (2006-present)
I apologize for the long hiatus in this White Rock series, but I hope this entry will be worth the wait.
White Rock through the ages: 2001 Mars Odyssey (2001-present)
In the fourth installment in my look at one spot on Mars as seen through the eyes of different spacecraft, we finally get to a mission that is still operational: 2001 Mars Odyssey.
White Rock through the ages: Mars Global Surveyor (1997-2006)
We first spotted the strange bright feature colloquially known as