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Blog Archive


Venus: Not so neat and tidy as we thought

Posted by Emily Lakdawalla on 2010/09/23 12:12 CDT

Pioneer Venus discovered a stable "dipole" near Venus' north pole, and Venus Express found the same thing near Venus' south pole. Except now Venus Express has found it's not as stable as once thought.

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Saturn's hexagon is not unique

Posted by Emily Lakdawalla on 2010/06/29 11:49 CDT

It turns out that Saturn's not the only place that displays geometrical shapes in its atmosphere. Earth does too.

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Jupiter's faded belt: It's happened before, and it'll happen again

Posted by Emily Lakdawalla on 2010/06/16 05:07 CDT

When I wrote a post about Jupiter's missing South Equatorial Belt in May, I had three main questions: how long did it take for the belt to go away, has this happened before, and how can a planet as big as Jupiter change its appearance so quickly?

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Saturn's hexagon recreated in the laboratory

Posted by Emily Lakdawalla on 2010/05/04 12:32 CDT | 12 comments

A lot of readers have expressed interest in the origin of Saturn's north polar hexagon. The hexagon is a long-lived pattern in the clouds surrounding Saturn's north pole, which has been observed since the Voyagers passed by in 1980 and 1981.

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Planetary Radio Q and A: Saturn's Hexagon

Posted by Emily Lakdawalla on 2009/11/04 04:14 CST

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

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

Posted by Emily Lakdawalla on 2009/11/04 04:02 CST

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?"

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A fun picture for holiday travel

Posted by Emily Lakdawalla on 2005/11/22 02:37 CST

A fun NASA explainer just crossed my email inbox and I thought I'd share it.

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An update on the Huygens Doppler Wind Experiment

Posted by Emily Lakdawalla on 2005/11/08 03:28 CST

While I was at the Division of Planetary Sciences meeting in Cambridge in September I had a chance to chat with David Atkinson, who's a member of the Doppler Wind Experiment team on Huygens. They and the other instrument teams have been plugging away at analyzing their data.

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News: Radio Astronomers Rescue Science Results for Huygens' Doppler Wind Experiment

Posted by Emily Lakdawalla on 2005/02/09 10:00 CST

Earth's radio astronomers have saved the day for one of the Huygens instrument teams. Today, the Doppler Wind Experiment (DWE) team announced their first science results, despite losing nearly all of their expected data.

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