Comet was uniquely designed to serve the long tail of science, and provides special features and operational policies that are tailored to those users who run modest scale computing jobs, or are interested in building science gateways on behalf of their community. This webinar provides an overview of the Comet system, user environment, descriptions of the special features that make it well-suited for long tail computing, and gives information on gaining rapid access to the system. Additionally, information about Comet’s high performance virtual cluster (VCs) capability is presented. VCs provide an additional option for groups that have distinct software requirements that do not fit will well with the one-size-fits-all stack found on most clusters.