After reading the great lesson review from Vada at the-exponent.com, I was inspired by a follow-up comment. A reader suggested bringing in the story of the Apollo 8 space mission, and the events surrounding it--particularly the "earthrise" that the witnessed. I won't go into detail myself, but an account of the story is found here:
I decided to put this picture, along with newly-released Hubble Telescope photographs to a slideshow as an attention-getter at the beginning of my lesson. The audio background is the astronauts of Apollo 8 reading from Genesis. My video is under 3 minutes and can be downloaded here:
I suggest giving a brief background to your class before showing the video.
Feel free to leave comments in the comment section! I'd love to know if someone uses this video.