The Death of the Earth?!

This is actually the video I used in the first class I taught.  The class was on the life cycle of the stars, from nebulae to black dwarf.  This class can be fun for students because they are almost always interested in the sun and what will happen to the solar system when it changes into a red giant.  The video is very dramatic, and it gives the viewer a good sense of the size difference between a yellow dwarf and red giant.  It helped motivate my class and keep them interested in the rest of my lecture, so it is definitely a video I plan to keep using in the future.