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The Planetary Society Blog
Archive
Archived posts are listed in reverse chronological order.
Feb. 28, 2011 | 13:43 PST | 21:43 UTC
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). If everything goes well, of course. As of today MESSENGER has... More»
Feb. 28, 2011 | 11:44 PST | 19:44 UTC
Announcing the winners of the "Are We There Yet?" contest
I'm pleased to announce the winners of the Planetary Society's "Are We There Yet?" Stardust contest! The following ten people were the ones who submitted the closest guesses to the 5,673,464,575 kilometers actually traveled by Stardust from its... More»
Feb. 28, 2011 | 10:45 PST | 18:45 UTC
365 Days of Astronomy Podcast: Stardust at Tempel 1
Yesterday the 365 Days of Astronomy podcast aired my contribution, Stardust at Tempel 1: The First Second Trip to a Comet. If you want to read some other stuff I wrote about the event, check out my preview post from January 19, the first sighting... More»
Feb. 25, 2011 | 14:25 PST | 22:25 UTC
A Planetary Society Trifecta
by Charlene Anderson
A Planetary Society trifecta -- that's what Neil Tyson calls this episode of his StarTalk radio show broadcast this week. His guests include the Society's Vice President, Heidi Hammel, and its Executive Director, Bill Nye,... More»
Feb. 25, 2011 | 13:13 PST | 21:13 UTC
Nice images of Discovery's launch
by Jennifer Vaughn
The final flight of space shuttle Discovery lifted off from NASA's Kennedy Space Center yesterday at 4:53 p.m. EST to deliver a new module and supplies to the International Space Station.
Check out Planetary Society volunteer... More»
Feb. 24, 2011 | 16:50 PST | Feb. 25 00:50 UTC
Stardust update: last image taken today
According to the Stardust website, the spacecraft has continued taking navigational camera images of Tempel 1 since last Monday's flyby. But "This will end with a Navcam calibration that will take place [today]. This will be the end of the official... More»
Feb. 24, 2011 | 15:47 PST | 23:47 UTC
New website full of color versions of Opportunity rover's microscopic images
There is a fascinating new page on the Mars Exploration Rover Pancam science team's website, full of color versions of Opportunity's microscopic images. The Microscopic Imager is one of the tools on the end of the robotic arm, and serves as a hand... More»
Feb. 24, 2011 | 12:10 PST | 20:10 UTC
Discovery GO for February 24 Launch
by Ken Kremer
NASA shuttle managers announced a unanimous GO for launch of Space Shuttle Discovery at today's briefing for reporters at the Kennedy Space Center (KSC).
The weather forecast remains very positive with an 80% chance of acceptable... More»
Feb. 23, 2011 | 11:47 PST | 19:47 UTC
A dog-bone-shaped asteroid's two moons: Kleopatra, Cleoselene, and Alexhelios
Asteroid (216) Kleopatra has been interesting to astronomers for a long time because its brightness is highly variable, but it seems to get more interesting every time somebody looks at it with a new instrument. In 2000 it was found to be "dog-bone"... More»
Feb. 22, 2011 | 14:17 PST | 22:17 UTC
Rosetta Update: 98% of rendezvous burn achieved, more detail on the safing event
ESA's Rosetta comet chaser has achieved 98% of the velocity change that it needed to accomplish in order to set itself up for the final leg of its cruise to comet Churyumov-Gerasimenko. The original plan was to perform this velocity change in a... More»
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