In this Journey to Microbial Worlds we present the diversity of
microorganisms, from the state of fossil microbes in Archaean age rocks
to the possibilities of extraterrestrial life. This volume discusses the
extremophiles living in harsh environments (from our anthropocentric
point) and describes them in considerable detail. Some chapters also
review topics such as symbiosis, bacterial luminescence, methanogens,
and petroleum-grown cells. The final chapters of this book shed new
light on astrobiology and speculate on extremophiles as candidates for
extraterrestrial life. All chapters are updated to the latest research
level.