A merger of the L5 Society and the National Space Institute, the National Space Society is an affiliate of the Moon Society with a more general focus on space activities, including the activities of NASA. It publishes the space advocacy magazine Ad Astra.
- Website: http://www.NSS.org
- Chicago: http://tech.groups.yahoo.com/group/spaceinchicago/
- NSS Space Elevator Chapter Yahoo Group:http://tech.groups.yahoo.com/group/nsecc/