http://www.smithsonianmag.com/scienc...949818/?no-ist

He led a feverish existence, with multiple careers tumbling over one another, as if he knew he wouldn’t live to an old age. Among other things, he served as an astronomy professor at Cornell, wrote more than a dozen books, worked on NASA robotic missions, edited the scientific journal Icarus and somehow found time to park himself, repeatedly, arguably compulsively, in front of TV cameras. He was the house astronomer, basically, on Johnny Carson’s “Tonight Show.” Then, in an astonishing burst of energy in his mid-40s, he co-created and hosted a 13-part PBS television series, “Cosmos.” It aired in the fall of 1980 and ultimately reached hundreds of millions of people worldwide. Sagan was the most famous scientist in America—the face of science itself.
It's like a bad Idiocracy themed science fiction piece. Guy who was always wrong and completely worthless BSer who capitalized on work of others and on promoting big bang nonsense and other "science" that is nothing but politics in disguise is bestest scientist evar.