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Planetary Radio Q and A: Are meteorites on Mars actually interesting?

Emily Lakdawalla • November 09, 2009

The Mars Exploration Rover Opportunity has been studying a lot of meteorites. That made me wonder, why study meteorites on Mars when we can study them in hand on Earth? How are Mars meteorites interesting?

A million dollars says The Planetary Society can make a solar sail fly

Emily Lakdawalla • November 09, 2009

The Planetary Society announced today that an anonymous donor has put up one million dollars to help us get a solar sail in flight.

She moves! "First drive sequence in 145 sols" for Spirit

Emily Lakdawalla • November 08, 2009

It's been an awful long time since we've seen one of these from Spirit: an animation of four Navcam frames documenting motion!

Space Image Processing Classes are Go!

Emily Lakdawalla • November 06, 2009

I got a huge response from readers interested in me conducting some online classes on space image data -- how to access and process it.

Reviews of several space-themed books for young children

Emily Lakdawalla • November 05, 2009

While I was on maternity leave I suddenly decided to see what books were out there that could help me teach my daughters (one's three years, and the other six months old) about the science and the thrill of space exploration.

MESSENGER Rewrites Mercury Textbooks Even Before Entering Orbit

Emily Lakdawalla • November 05, 2009

As MESSENGER zoomed toward Mercury for its third flyby, it was commanded to rotate in a maneuver that would help it test a surprising result from the second flyby.

Planetary Radio Q and A: Saturn's Hexagon

Emily Lakdawalla • November 04, 2009

On "Questions and Answers" I answered this question: "How do they explain the hexagon near Saturn's north pole?"

Planetary Radio Q and A: Not-so-gassy giants

Emily Lakdawalla • November 04, 2009

On Planetary Radio's "Questions and Answers" I answered this question: "I read that Uranus got its tilt when it was hit by another object. What does it mean for a ball of gas to be hit -- wouldn't another object just pass through it?"

Data from Kaguya's prime mission to the Moon has been released

Emily Lakdawalla • November 03, 2009

Yesterday, the Japanese space agency announced the public release of the data from the primary mission of the Kaguya (a.k.a. SELENE) lunar orbiter.

Voting is Fixed!

Ryan Anderson • November 03, 2009

There were some issues with the voting widget on the University Science Writing competition, but they have been resolved, and it turns out it was counting the votes all along! So go vote for my post if you haven't done so yet today!

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