As biologist and author Kelly Weinersmith and her husband, cartoon artist Zach Weinersmith ... "No way that you could scale up to a million people on Mars without something catastrophic happening ...

No one has ever set foot on the planet. NASA doesn’t expect to land humans on Mars until the 2040s. And if people get there, they will be greeted by a barren terrain, icy temperatures ...

Setting up colonies on the moon and Mars is a tantalizing goal ... outlook for humanity's future beyond Earth, delightful cartoons sprinkled throughout the book are sure to pull chuckles out ...