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The Planetary Society Blog
Archive
Archived posts are listed in reverse chronological order.
Oct. 12, 2010 | 14:30 PDT | 21:30 UTC
"A very sad story": No rings for Rhea after all
A couple of years ago, a story published in Science made a big splash: Rhea, Saturn's second-largest moon, appeared to have rings. The evidence was from the MIMI instrument on Cassini. During a flyby on November 26, 2005, MIMI detected something... More»
Oct. 11, 2010 | 09:20 PDT | 16:20 UTC
Space Station transit of Venus
Let's count how many amazing things there are about this photo.
1) Theo Ramakers and Frank Garner caught the Space Station transiting Venus. In the whole wide sky, these two tiny objects were right next to each other.
2) Venus was at a magnitude... More»
Oct. 9, 2010 | 15:46 PDT | 22:46 UTC
Six moons with one shot
There are six, count them, six moons in this photo. Plus the outer edge of Saturn's rings. Awesome. Click to enlarge >Six moons with one shotOn October 6, 2010, Cassini managed to catch six different moons passing through its narrow-angle camera... More»
Oct. 8, 2010 | 16:40 PDT | 23:40 UTC
DPS 2010: Friday morning at Titan's surface
I debated whether to attend the Titan surface or near-Earth asteroids sessions on Friday morning and decided, in the end, to go to Titan, because I feel like I have just not been writing enough about Saturn's planet-like moon lately. I'm glad I... More»
Oct. 8, 2010 | 14:47 PDT | 21:47 UTC
I'm part of the conspiracy, apparently
Oh, bother. From the Bad Astronomer I learned that a Cassini pic of Titan and Dione that I processed is apparently evidence of a NASA coverup, at least according to some guy on Youtube. And then I found out that there are newspapers that use random... More»
Oct. 8, 2010 | 14:19 PDT | 21:19 UTC
New Hubble images and rotation movie of Vesta
NASA just press-released some recent new views of Vesta, one of the largest denizens of the asteroid belt, soon to be visited by the Dawn spacecraft. The movies were taken in short wavelengths (ultraviolet and blue) by Hubble's relatively new... More»
Oct. 8, 2010 | 09:34 PDT | 16:34 UTC
Chang'E 2 update: in orbit and returning data
From Yong-Chun Zheng at National Astronomical Observatories, Chinese Academy of Sciences have come several updates on the status of China's second lunar orbiter, Chang'E 2. Chang'E 2 launched successfully on October 1 at 10:59:57 UTC. It launched... More»
Oct. 7, 2010 | 15:22 PDT | 22:22 UTC
Guest Blog: Rosaly Lopes field trip to Piton
Planetary volcanologist Rosaly Lopes has just embarked on a field expedition to the active volcano Piton de la Fournaise, on Reunion Island, and is sending us updates for the blog. Thanks, Rosaly! --ESLby Rosaly Lopes
Monday, October 4
I'm glad... More»
Oct. 6, 2010 | 21:24 PDT | Oct. 7 04:24 UTC
Little notes from Monday at DPS 2010: Iapetus, Kiviuq, LHB, Steins, Cherry Gary, and more
Here's a post with some random facts and notes from Monday at Division of Planetary Sciences meeting that didn't fit in any other writeup.
Iapetus has a much larger opposition surge than any other Saturnian moon (or Uranian moon, for that matter).... More»
Oct. 6, 2010 | 15:26 PDT | 22:26 UTC
DPS 2010: Making Saturn's rings and moons all at once
It's already Wednesday and I've written up nothing from this week's Division of Planetary Sciences meeting yet -- time to get cracking! I'm going to take a stab at doing some shorter posts kept to single topics...
One of the most interesting talks... More»
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