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Stories, updates, insights, and original analysis from The Planetary Society.
Bj�rn J�nsson's Voyager 1 Jupiter animation, new and improved
Late last year I posted an amazing video of Jupiter's moving clouds, an animation made from images that Voyager 1 took as it approached. Below is a new and improved version of that animation. The first one was based on 16 Voyager color photos; this one covers a much longer period of time, and includes 58 images.
The scale of our solar system
Space.com has taken advantage of the infinitely scrollable nature of Web pages to produce a really cool infographic on the scales of orbital distances in the solar system.
Historical PDF: "The Voyager Flights to Jupiter and Saturn"
A while ago I posted all 99 issues of the Voyager Mission Status Bulletins in PDF format, and now I have another cool item to add to that collection: NASA EP-191,
What's up in the solar system in April 2011
April 2011 will see MESSENGER begin the science phase of its orbital mission at Mercury, and should, I think, also see the start of Dawn's approach observations of Vesta. At Mars, Opportunity is back on the road again, rolling inexorably toward Endeavour. At Saturn, Cassini will continue its focus on Saturn and Titan science.
What's up in the solar system in March 2011
I don't think there's any question what the big event of this month will be: MESSENGER is finally, finally entering orbit at Mercury on March 18 at 00:45 UTC (March 17 at 16:45 for me).
The Solar System from the Inside Out - and the Outside In
Space probes grant us perspective, the ability to see our place within the vastness of the solar system. But opportunities to see all of the solar system's planets in one observation are rare. In fact, there's only been one opportunity on one mission to see the whole solar system at once, until now.
Snapshots from Space: Voyager views of the Great Red Spot, Björn Jönsson
I've got a new column in the Planetary Society's member magazine, The Planetary Report, called
Io and Jupiter from Voyager 1
Here's an image I've been meaning to post for months, a new mosaic from Voyager 1 by Ted Stryk of Io crossing Jupiter's terminator as it neared closest approach.
Uranus and Challenger
In the past week there have been 25th anniversaries of two events in 1986, one great, one terrible: the closest approach of Voyager 2 to Uranus on January 24, and the explosion of the space shuttle Challenger upon liftoff on January 28.
Door 8 in the 2010 advent calendar
Time to open the eighth door in the advent calendar. Where in the solar system is this nearly flat plain?
Final set of Voyager Mission Status Bulletins: The Voyager 2 Neptune flyby and beyond
I'm surprised no one's emailed me demanding the last batch of Voyager mission status bulletins! Well, here they are.
An awesome animation of Jupiter's clouds
Ready to see something beautiful? Here's a team effort by Björn Jónsson and Ian Regan to create a really mesmerizing view of the motions of Jupiter's clouds.
Voyager Mission Status Bulletins: Jupiter and Saturn
Last week I posted a stack of Voyager Mission Status Bulletins, which were once the main resource for space enthusiasts to follow the dramatic events and photos of an in-flight space mission.
The Voyager Mission Updates
We take for granted now the ability to get detailed mission updates in a timely fashion via the Web. But How did people get their mission status before the Web?
Possibly the best view of the Great Red Spot ever
This is a new, big mosaic of Voyager 1 images, this time showing the Great Red Spot at high resolution.
Jupiter's swirling storms from Voyager 1
Amateur image mage Björn Jónsson has recently turned his attention back to Voyager 1's close-up images of Jupiter.
The August 20, 2010 Jupiter fireball -- and the March 5, 1979 one
Following up on the story I first posted on August 22, the Jupiter impact fireball first noticed by Japanese amateur astronomer Masayuki Tachikawa has been independently confirmed by two other Japanese astronomers.
Exposing Io's true colors
Thanks to its active volcanic activity and sulfur-rich surface, Io is one of the most colorful worlds yet seen in the Solar System, save the Earth of course
Voyager at Saturn, one year later
Here are two newly processed portraits of Saturn, showing the planet just after its equinox.
Volcanism across the solar system: Io
Three months ago, grandiosely, I announced that I was going to survey volcanism across the solar system, and I began the journey on Earth. Then I failed to follow up.