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Stories, updates, insights, and original analysis from The Planetary Society.

Book Review: A More Perfect Heaven, by Dava Sobel

As with her previous two books Longitude and Galileo's Daughter, Dava Sobel draws heavily on primary sources for her latest book, A More Perfect Heaven: How Copernicus Revolutionized the Cosmos.

Phobos-Grunt status, launch plus six days

I said I wasn't going to post again unless the spacecraft talked to us, but I changed my mind because finally there were official comments today about the status of the mission from Roskosmos head Vladimir Popovkin.

A little fun with Deep Impact deep-sky data

Last week, the team put all of the data from Deep Impact's deep-sky imaging session online, and challenged visitors to see what they could make from it. I made some photos of M51, but there were some challenges.

How to move a shuttle across Los Angeles

Ever since the space shuttle Endeavour was awarded to the California Science Center I've been curious about the question of how they will ever get a shuttle from Los Angeles International Airport across more than 10 miles of densely developed city land in the United States to Endeavour's eventual home in Exposition Park.

Phobos-Grunt status, two days after launch

When I last left Phobos-Grunt, Roscosmos had not yet commented on the results of a planned attempt to communicate with the wayward spacecraft at 19:00 UT on November 9.

Phobos-Grunt, the morning after

I repeatedly rewrote yesterday's post on the problem suffered by Phobos-Grunt after its apparently perfect Zenit launch and thought it was time to begin fresh.

Live feeds on asteroid 2005 YU55 as it passes Earth

Unless you've been living under a rock you've probably heard that there is a relatively large (400-meter) asteroid passing closer to Earth than the orbit of the Moon today -- in just a few minutes, as a matter of fact.

Phobos-Grunt and Yinghuo-1 poised for liftoff

Russia's Phobos-Grunt sample return spacecraft, carrying the Planetary Society's Phobos LIFE experiment, plus China's Yinghuo-1 Mars minisatellite, are poised for launch at Baikonur! The launch window opens in less than six hours, at 20:16 UTC.

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