If you want to learn about science, space and astronomy the internet could be your best friend. The SETI Institute have their equivalent to TED Talks Science. Free science lectures not only about finding life in the universe but also about space exploration and astronomy in general. Great educational material by astronomers available for everyone. At the moment they have nearly 200 lectures.
Not only are there lectures to watch, there are a few really good pod casts to listen to. Please check my Space News section where you find pod casts like these:
The Big Picture (also from the SETI Institute)
And if you like to read there is of course the free online encyclopedia Wikipedia: