Unseen
ecthompsonmd
June 7, 2008
I’ve been reading The View From The Center Of The Universe by Joel Primack and Nancy Ellen Abrams. One things this book discusses is the composition of the universe. Only a fraction of existence is solid and visible. The chart above offers some detail. The dark matter and dark energy that comprises most of existence does not react with light and is impossible to see. Yet these dark materials alter the shape and the size of the universe. These facts were not fully understood as recently as 15 years ago. They are understood better today, though still imperfectly. Here is a
