From the Ancient light of the cosmos, modern astronomers have pieced together an incredible story - an unfinished saga with an explosive beginning. Stars are born, live and die.
Galaxies gather, form, and interact.
Space is expanding. The Universe evolves. This site contains QuickTime movies, sound files, and lots of graphics, so a fast connection helps. The site also contains links to answers to frequently-asked questions about the Big Bang. To help you envision an expanding universe try this activity .