This document discusses Apache Airavata, a science gateway software system. It describes how Airavata enables the composition, execution, and monitoring of distributed computational workflows across various resources, from local to grids and clouds. It provides examples of how Airavata supports scientific workflows in domains like astronomy, astrophysics, bioinformatics, and biophysics. The document emphasizes the importance of open governance and collaboration within the Apache community to broaden Airavata's developer base and connections.