Thanks for all the suggestions. I will check them out.

I also found a short daily show, Stardate, from the observatory at Fort Davis (where the Texas Star Party is). Which I think is a radio show, but rather than try to tune it in at the right time on the right station, the Podcast updates itself.

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"I'm as accurate as any psychic. And I'm a cartoon!" -- Squidward

"Arrrgh, the laws of physics be a harsh mistress!" -- Bender