NASA Astrobiology Program staff, along with other NASA HQ representatives of participating research elements within other SMD Divisions, select the RCN co-leads nominated (or self-nominated) from within the science community whose research has been funded in that area and who have elected to be a member of the RCN. Normally, the co-leads manage the RCN for the length of the performance period of their NASA award (3-5 years). At the end of a co-lead’s term, a new co-lead will be selected by the same process.