There have been a spate of posts recently about stellar distances. I recently came across the Kahn Academy which has short lectures on just about anything, but the series on Cosmology and astronomy gives one of the easiest to understand explanations in the introductory lessons on the scale of our solar system and the universe in general. http://www.khanacademy.org/
Get your mind around this.
Cheers
I just previewed a few minutes of "Scale of the Galaxy" and I found it very interesting. I like the presentation which seems to be a lecture - so straight to the subject and no fancy glitzy stuff to fluff up the presentation.
look at all the subjects!!!! There's thousands of them!
