The heavens

http://webcast.berkeley.edu/course_details.php?seriesid=1906978334

http://freevideolectures.com/

http://ocw.mit.edu/OcwWeb/web/courses/courses/index.htm

http://www.yovisto.com/popcollections.jsp

http://www.vector64.com/HomeEd/video.html

http://scienceworld.wolfram.com/astronomy/