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Carnival of Space and Planetary Radio

Emily Lakdawalla • December 08, 2009

This week's Carnival of Space may be found at Steve's Astro Corner.

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?

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?"

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