David Grinspoon, curator of Astrobiology at the Denver Museum of Nature & Science, suits up as part of his training for commercial space flights beginning in 2011. He speaks with Mike Lamp.

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before CPR's service year ends on June 30.
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Colorado Postcards are snapshots of our colorful state in sound. They give brief insights into our people and places, our flora and fauna, and our past and present, from every corner of Colorado. Listen now.