The Journal's Robert Lee Holz has great fun with astrobiological speculations on the bombardment period of early Earth, when the protoplanet was pummeled with the planetesimals of the early solar system. Perhaps we cooked the stew under a canopy of Greenhouse effects. Perhaps proto-organisms in the form of viruses or bacteria or protists or archaea arrived here inside one school of asteroids. What is fresh now is Kepler and the search for fifty Edens of all ages. Dimitar Sasselov will report on the early Kepler results Saturday 22. This Sunday 16, David Grinspoon of the Denver Museum will comment on new results from Venus Express and the prep for the Mars Lab next year.  Clues to the origins of the first Earth reproduction.