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The Planetary Society Blog
Archive
Archived posts are listed in reverse chronological order.
Oct. 22, 2009 | 11:44 PDT | 18:44 UTC
Last Chance for Bargains at The Planetary Society Store
We are preparing to have a brand new online store with new and different merchandise; to that end, we are clearing out EVERY LAST BIT of our old store inventory. Prices are super duper low. All posters are only $2 apiece; please consider picking... More»
Oct. 21, 2009 | 11:27 PDT | 18:27 UTC
Spinning spokes in Saturn's rings
Here's a neat animation captured last month by Cassini and assembled by Mike Malaska: spokes in Saturn's B ring. The spokes are especially prominent just now, so close to equinox.Spinning spokes in Saturn's ringsCassini captured this 22-frame... More»
Oct. 20, 2009 | 11:01 PDT | 18:01 UTC
Window onto an abyss: Cave skylight on the Moon
This just in: researchers on JAXA's Kaguya lunar orbiter have discovered an open pit on the Moon that is likely a window onto a sublunar world -- a skylight into a subsurface cavern. Junichi Haruyama, Kazuyuki Hioki, Motomaro Shirao, Tomokatsu... More»
Oct. 19, 2009 | 12:39 PDT | 19:39 UTC
Saturn shadows shift with the seasons
So many goodies on the Cassini raw images website lately! I am especially excited when Cassini takes photos through red, green, and blue filters so that it's possible to create views that look roughly like what you'd see with your own eyes. Here's... More»
Oct. 18, 2009 | 14:08 PDT | 21:08 UTC
Fun for Sunday: Titan and Tethys pas de deux
Checking in on Cassini's raw images this weekend, there are several nice shots to play with, including the many frames from which I tossed together this cute animation. Saturn's icy moons are so bright and crisp, Titan always appears like a fuzzy... More»
Oct. 16, 2009 | 11:43 PDT | 18:43 UTC
Here comes Rosetta!
Heads up! ESA's Rosetta comet-chasing mission is going to buzz by Earth again in less than a month. In anticipation of that event, Daniel Scuka has fired up the Rosetta blog again and has provided some information about the upcoming flyby:On... More»
Oct. 16, 2009 | 10:28 PDT | 17:28 UTC
Opportunity's world of dunes and rock
Opportunity's been making tracks lately, with brief stops to check out a couple of meteorites. I thought this view of its surroundings on sol 2,034 (a couple of days ago) was neat. It's a polar projection -- Opportunity's 360-degree view is... More»
Oct. 15, 2009 | 15:44 PDT | 22:44 UTC
A brief word on Saturn's radius
I've had two people write in to correct my Phoebe ring post from yesterday. In that post I saidYou can measure the extent of the rings in kilometers, but astronomers and Cassini mission people both seem to find "Saturn radii" to be a handier unit... More»
Oct. 15, 2009 | 12:23 PDT | 19:23 UTC
Rhea, Enceladus, Mimas, and Tethys, oh my!
For a very long time Cassini has been in an orbit that carried it high above and below the plane of the rings. This has been fantastic for observations of the rings and planet during the equinox season, and has permitted some cool observations of... More»
Oct. 14, 2009 | 14:58 PDT | 21:58 UTC
Netherlands fireball
I was debating whether to write anything about a reported fireball that streaked across the sky in the Netherlands at roughly 19:00 local time (17:00 UTC) yesterday, October 13, but seeing this image ended my internal debate. Wow!Fireball over the... More»
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