Today Paul Pepper welcomes back PAT DAUGHERTY, retired NASA education specialist, who shares more insights into the science behind what NASA is up to these days.
http://www.youtube.com/watch?v=KThWCs6ZOGQ
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Today Paul Pepper welcomes back PAT DAUGHERTY, retired NASA education specialist, who shares more insights into the science behind what NASA is up to these days.
http://www.youtube.com/watch?v=KThWCs6ZOGQ