The NASA Kepler and K2 missions have made fundamental, paradigm-changing advances in essentially every area of astrophysics and planetary science. While known for their breakthrough discoveries in exoplanets – especially small rocky worlds orbiting in the habitable zone of their host suns – these missions have also continued to make numerous scientific advances in solar system science, stellar astrophysics and extragalactic astronomy. This book is devoted to the Kepler and K2 missions and ...