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Defend Earth
A radio show on Mercury and a space carnival
Written by
Emily Lakdawalla
March 28, 2011
Today's Planetary Radio features Sean Solomon on the successful arrival of MESSENGER at Mercury. After checking that out, wander over to the 190th Carnival of Space, hosted this week by Paul Gilster over at Centauri Dreams. And for a bit of fun, go to the Planetary Society Facebook page to suggest a caption for a space photo!
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