Earth quest

"Imagine what life would be like if our beloved planet were to become uninhabitable, either because of our own failings or from forces beyond our control. Would we have sufficient technology to be able to travel the unfathomable distances in space for years, perhaps thousands of years, in search of a new homeland? The Enlilliians, remants of an ancient civilization, experienced such a fate. A select few had escaped from their planet before it was incinerated by their ever-expanding sun. These survivors, confined to their giant spaceship, hoped that their search for a new home - and a new food source - would end within a few generations. Their quest seemed hopeless. That is, until they came across a little planet called Earth - and a biologist named Dr. William Lance"--Publisher's web site.