-- Deep Astronomy: This video podcast is a nice collection of astronomical events delivered in a variety of ways by Tony Darnell, sometimes as a newscast referring to webpages and other times as a more elaborate narrated film. I recently watched the piece on free-floating planets and was fascinated with the tale of hundreds of billions such planets throughout the galaxy. You can view it on YouTube or pull it down on iTunes.
-- Spacevidcast: Unlike Deep Astronomy, this video podcast has a number of narrators telling stories about the space program. For instance, I recommend the video podcast on the NASA art show in Washington, DC, which I discussed in my last blog entry. You can view these programs on YouTube or pull it down on iTunes.
-- NASA's Jet Propulsion Laboratory: This video podcast is another great way to stay on top of emerging issues, such as the new Mars rover. This computer-generated animation of the future rover mission gives you a good idea of the complexities involved on getting to the planet's surface. I had visions of Wall-E dancing through my head as the rover went about conducting its analysis. Again, the videos are available on YouTube and iTunes.