expository writing 3/20/14 by ped shih (books like beach read TXT) 📕

some info on the black hole, i doubt the part where the black hole keeps growing, it troubles me alot to think about it, what if one gets too big...
source:
http://science.nationalgeographic.com/science/space/universe/black-holes-article/

http://science.nasa.gov/astrophysics/focus-areas/black-holes/