PBS HAS A NEW SCIENCE SERIES .... VIEW IT ONLINE FOR FREE....THAT EVERYONE AT THE SPACE CENTER AND ANYONE INTERESTED IN SPACE MUST SEE. IT IS CALLED "HUNTING THE EDGES OF SPACE"....PART ONE AND TWO....
FASCINATING INFO ABOUT LIGHT, TELESCOPES, DISCOVERING THE ESSENCE OF DARK ENERGY/MATTER..GREAT SERIES!!
http://www.pbs.org/wgbh/nova/
ENJOY!!
Sheila Keller-Powell AKA ST. SHEILA
SPACE CENTER EDUCATOR