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The Planetary Society Blog
Archive
Archived posts are listed in reverse chronological order.
Aug. 19, 2009 | 09:46 PDT | 16:46 UTC
What's up in the solar system in August 2009
Time to step back and take stock of what's going on with all our favorite robotic missions exploring space beyond Earth....
NASA's MESSENGER is now closing in on its third and final flyby of Mercury, coming up on September 29. Its view of Mercury... More»
Aug. 18, 2009 | 13:54 PDT | 20:54 UTC
Io eclipses and transits Ganymede
I give a tip of the hat to Jason Perry at The Gish Bar Times and a Wayne's World-style "We're not worthy" bow and scrape to amateur astronomer Christopher Go for this incredible animation. Go observed a mutual event of two of Jupiter's moons,... More»
Aug. 18, 2009 | 12:14 PDT | 19:14 UTC
Planetary Radio Q and A: What's Jupiter made of? Part 2
This week's Planetary Radio features Don Yeomans on a new website that helps to inform the public about the potentially hazardous asteroids in the space near Earth. On "Questions and Answers" I continued answering the question:
"I've heard Jupiter... More»
Aug. 18, 2009 | 09:58 PDT | 16:58 UTC
Carnival of Space #116
Carnival of Space #116 is live over at Habitation Intention. Wander over and check it out!... More»
Aug. 17, 2009 | 10:51 PDT | 17:51 UTC
Send a message to the aliens
Last week I got a message via Facebook from one Jacqui Hayes, who's on the staff of an excellent Australian science magazine called COSMOS. More importantly to me, Jacqui was once one of the Student Navigators, an international group of students... More»
Aug. 17, 2009 | 10:11 PDT | 17:11 UTC
Uranian crescents
Here's a little piece of eye candy for you. There is a canonical shot of Uranus taken by Voyager 2 as it departed the system, showing the apparently serene blue orb as a thin crescent:Click to enlarge >Crescent UranusThis view of Uranus was... More»
Aug. 14, 2009 | 15:41 PDT | 22:41 UTC
This will be one spectacular Saturn mosaic when it's assembled properly
Among the many images recently posted to the Cassini raw images website from near the equinox were numerous frames from a ginormous multi-filter 19-frame mosaic on Saturn and its rings. This one is really unusual because the ring system shadow has... More»
Aug. 14, 2009 | 09:20 PDT | 16:20 UTC
A week of Tweets
Here's what I've been nattering about on Twitter this week. If you'd like to see these in real time, Follow me at Twitter. A word on some Twitter conventions: "RT" means "Retweet" -- I'm repeating something that somebody else said. And anything... More»
Aug. 14, 2009 | 08:06 PDT | 15:06 UTC
New image of Opportunity on Mars
I really can't explain why it didn't occur to me to search for the rover in the image of Victoria crater released by the HiRISE team on Wednesday. Actually, now that I reflect on it, I can; the press release about the photo of the crater hit my... More»
Aug. 13, 2009 | 11:38 PDT | 18:38 UTC
The Jupiter Impact
I've received a half-dozen emails asking why there hasn't been anything on the blog yet about the Jupiter impact. The answer: there's only one of me! But now I'm finally getting to the story, nearly a month after it happened. There is one... More»
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