Microbes inhabit and sustain all habitats on Earth. In the oceans, microbes capture solar energy, catalyze biogeochemical transformations of important elements, produce and consume greenhouse gases, and provide the base of the food web. The purpose of these awards is to help launch the careers of outstanding investigators in the field of marine microbial ecology and evolution who will advance our understanding through experiments, modeling or theory. Investigators must be currently active in research on microbial ecology and/or evolution, excluding research focusing on the microbiomes of animals or plants. Investigators with backgrounds in different fields are encouraged to apply. Reference Letters Deadline: October 30, 2020. LOI Deadline: November 5, 2020.