EMBRYOLOGY  GEOPHYSICAL LABORATORY  GLOBAL ECOLOGY  THE OBSERVATORIES  PLANT BIOLOGY  TERRESTRIAL MAGNETISM  CASE: CARNEGIE ACADEMY FOR SCIENCE EDUCATION CarnegieScience The Newsletter of the Carnegie Institution for Science S P R I N G 2 0 1 9 EMBRYOLOGY  GEOPHYSICAL LABORATORY  GLOBAL ECOLOGY  THE OBSERVATORIES  PLANT BIOLOGY  TERRESTRIAL MAGNETISM  CASE: CARNEGIE ACADEMY FOR SCIENCE EDUCATION On the Inside 5 Interacting Gut Microbes Shape our Lives 10 Pushing the Limits of the Outer Solar System 18 China Doesn’t “Walk the Walk” on Methane Emissions