That’s a reckless mind-set when it comes to preparing for people to live and work in space, Nesvold argues in her new book, Off-Earth ... usually set in the year 2100, on a space settlement.

Read more about the science behind the making of "Earth 2100." June 2, 2009— -- The scenarios in Earth 2100 are not a prediction of what will happen but rather a warning about what might happen.