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Stories, updates, insights, and original analysis from The Planetary Society.
Stardust update: Tempel 1 not yet spotted by spacecraft, hopefully next week
A new update has been posted to the Stardust website: The spacecraft continues to operate as expected and all subsystems are healthy on approach to comet Tempel 1.
Mars Express' January 2011 Phobos images show how camera works
The Mars Express High-Resolution Stereo Camera (HRSC) team has just released several images from the most recent series of Phobos flybys to the Mars Express blog.
Two fine color Cassini animations: Prometheus rotating, Tethys and Dione dancing
Daniel Macháček has reached into the dark side of Prometheus and pulled out an incredible amount of detail where the potato-shaped moon is illuminated by Saturnshine. He produced an animation that morphs among the three sets of four-filter color images that Cassini snapped during the flyby.
Stardust prepares for first second look at a comet: Tempel 1 on February 14
A press briefing was held at NASA Headquarters this morning to preview the planned February 14 encounter by Stardust with Tempel 1. There aren't often lots of questions from media after these
Rosetta burns for its comet
Rosetta -- Europe's comet-chasing spacecraft -- is in the middle of a three-day series of rocket firings that are setting the geometry for its rendezvous with comet 67/P Churyumov-Gerasimenko.
Radar topographic view of a volcano
Quick -- where is this? Is it one of Venus' iconic volcanoes? Or maybe Mars'?
Scientific clarification: "inverted topography" is more general than "esker-like features"
In the past couple of months I've received several emails from scientists offering clarifications, corrections, or alternative points of view to previous posts, which is awesome and something that I enthusiastically encourage. Here's one of them.
2010 JL33: How to see an asteroid from quite a long way away
A terrific set of Goldstone radar images of a good-sized near-Earth asteroids named 2010 JL33 was posted to the JPL website yesterday. They also posted a movie version but something about these pixelated radar image series absolutely begs for them to be displayed as an old-school animated GIF, so I made one.
"A genuinely weird experience": A video of Steve Squyres explaining a photo of Steve Squyres
In a lovely talk, in his uncommonly engaging way, Steve Squyres presents the portrait of him that now hangs in the Smithsonian's National Portrait Gallery.
365 Days of Astronomy Podcast: Unmanned Space Exploration in 2011
Today the 365 Days of Astronomy podcast aired my contribution, Unmanned Space Exploration in 2011, about what to look forward to in solar system exploration this year.
Goodies from the January 11 Rhea flyby
Cassini got some incredibly tricky shots during its January 11 Rhea flyby!
Orcus and Vanth
As part of a big, ongoing project to make a comparison chart of the dimensions and physical properties of solar system objects I've spent the morning tackling the difficult problem of summarizing the physical characteristics of the biggest things that are out there beyond Neptune.
Grab bag: "Rocky" exoplanet, molten lunar core, Rhea close encounter
The Kepler exoplanet hunting mission has made news today with a report of
Stardust mission update: 38 days to Tempel 1
Stardust is healthy after performing a
Solar eclipses from space: Hinode and SDO
Two spacecraft that keep their ever-watchful eyes on the Sun -- NASA's Solar Dynamics Observatory (SDO) and JAXA's Hinode -- were doing their thing, when something large wandered past: the Moon.
Two possible futures for Akatsuki
There are two intriguing possibilities being discussed in the Japanese media for what to do with Akatsuki, a space probe in orbit near Venus with a fully functional, highly capable suite of cameras but a damaged main engine.
Sunset and eclipse on Mars
These two movies were posted to the JPL website a couple of weeks ago, and they are just amazing.
Dawn Journal: LAMO (Low Altitude Mapping Orbit)
Dawn finishes 2010 much as it began the year, thrusting with its ion propulsion system in steady pursuit of a distant world.
Juno in an alternate universe
I was browsing JPL's Planetary Photojournal today and noticed that they've posted an updated artist's concept of the Juno spacecraft, which is set to launch in August for a 2016 arrival at Jupiter.
Two views of Santa Maria, from orbit and from the ground
Mars Reconnaissance Orbiter has just snapped another photo of Opportunity sitting on the ground on Mars. These pictures never get old.