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The Planetary Society Blog
Archive
Archived posts are listed in reverse chronological order.
Dec. 12, 2011 | 17:36 PST | Dec. 13 01:36 UTC
Pretty picture: Mimas scuttles behind Dione
There was a very close flyby of Dione by Cassini this morning, and the images have just been returned from the spacecraft. There are lots of great goodies from this flyby on the Cassini raw images website, and I plan to spend some time playing with... More»
Dec. 9, 2011 | 18:14 PST | Dec. 10 02:14 UTC
Phobos-Grunt: all but over, a letter from IKI
If you're a member of The Planetary Society, you have already received parts of the letter that I'm copying below, in an email note from Bruce Betts, Director of Projects. It takes the financial support of thousands of members for us to put our... More»
Dec. 9, 2011 | 17:44 PST | Dec. 10 01:44 UTC
Watch a Live Webcast of the Lunar Eclipse
By Mat Kaplan
The good folks behind the SLOOH Space Camera have made their webcast of Saturday's eclipse available to us. Live coverage will begin at 1300 UTC on January 10. That's 0800 EST and 0500 PST. SLOOH will rely on images from telescopes... More»
Dec. 9, 2011 | 12:32 PST | 20:32 UTC
Mariner 9 approaching Mars: a movie!
Image magician Daniel Macháček has done it again. This time, he's celebrating the 40th anniversary of Mariner 9's arrival at Mars (November 13, 1971) with a morphed animation of the images that Mars' first orbiter took while approaching... More»
Dec. 9, 2011 | 10:41 PST | 18:41 UTC
Total lunar eclipse tomorrow
There's a lunar eclipse tomorrow that will be fully visible from Asia, Australia, and above the Arctic circle, not at all from South America, and partially so for everyone in between. Eclipses are pretty sky events to see, but this one will be... More»
Dec. 8, 2011 | 14:55 PST | 22:55 UTC
W.M. Keck Observatory Lecture
By Mat Kaplan
The webcast of "Oodles of Exoplanets: The Search for other Habitable Worlds" will be available here at 9:00pm PST. Dr. Greg Laughlin of the University of California, Santa Cruz will come to us live from the Kahilu Theater in Hawaii,... More»
Dec. 8, 2011 | 14:19 PST | 22:19 UTC
Notes on Dawn at Vesta from the 2011 American Geophysical Union meeting
Vesta is proving tricky to interpret. Dawn has been there for only a few months, and the data gathered so far has already disproven a number of preconceived notions and generated dozens of new puzzles. Fortunately, scientists love puzzles! But... More»
Dec. 7, 2011 | 19:42 PST | Dec. 8 03:42 UTC
Webcast of W.M. Keck Observatory Lecture
By Mat Kaplan
Our friends at the Keck Observatory have invited us to help make another of their events available. Dr. Greg Laughlin of the University of California, Santa Cruz will give a talk titled "Oodles of Exoplanets: The Search for other... More»
Dec. 6, 2011 | 13:39 PST | 21:39 UTC
Good news, everyone: We're getting as good at space weather forecasts as we are at Earth weather forecasts
If you can't figure out whether or not I'm joking with the title to this blog post, it's OK, because I'm not sure either! It's great news that we can predict space weather at all; but experience with Earth weather predictions inspires caution in... More»
Dec. 6, 2011 | 07:52 PST | 15:52 UTC
Guest Post: Jason Davis: Sungrazing with Lovejoy's Comet
On December 2, the Solar and Heliospheric Observatory (SOHO) celebrated its 16th birthday. SOHO is a joint NASA/ESA satellite packed with twelve instruments to study the sun. An amateur astronomer in Australia has given it a wonderful birthday... More»
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