There is a website, 365 Day of Astronomy, that has a short podcast everyday. On March 27th, 2011
it was my turn. Most of the podcasts are more technical about the
latest observations from a telescope or cosmological theories, but Mr.
Moose decided to try something different and tell a story about travel
and astronomy. The podcast is an .mp3 located here for download. So grab the file and listen to your hearts content.
Here are a few links for things that are referenced in the podcast. A picture of the Wolfe Creek Crater, you can see it here. The crater on a map is here and the Henbury Crater map is here. Enjoy!