Everyone on earth can at one point look up to the sky and see the sun, but what is it? Is just a source of heat or light and what is it composed of? Humans through ages have spent a lot of time trying to discover the dynamic force that is the sun.
Channels: Astrophysics Aerospace Engineering
Tags: Top Solar Discoveries 5
Uploaded by: season_31 ( Send Message ) on 23-11-2011.
Duration: 1m 52s