Elon Musk is an inventor, entrepreneur and engineer.

If he gets his way, someday we could all be moving to Mars on one of his Space X rockets, and driving his Tesla electric cars to our Solar City powered Martian homes.

All of that sounds unbelievable -- but maybe not in Musk's mind. It seems that whatever Musk imagines or puts his mind to either eventually comes true, or at the very least, seems possible someday.

Ashlee Vance takes a look at Musk's life in the new book, "Elon Musk: Tesla, Space X, and the Quest for a Fantastic Future."