SPACE.com / LiveScience.com - OK, imagine winding back the clock three-score and ten. Picture a return to that singular time in human history when knowledge of the continents and oceans was sophisticated and extensive, but not yet complete. By going back only a generation, before aircraft and spacecraft pixelated the Earth, you arrive at an era when nature still held a few surprise cards; when major discoveries could still be made.

AP - A University of New Hampshire plant biology professor has documented an abundance of invasive species of seaweed in Maine's Casco Bay that appear to be changing the ecosystem.

AP - A rural high school teaching a religion-based alternative to evolution was sued Tuesday by a group of parents who said the class should be stopped because it violates the U.S. Constitution.