National Space Society (NSS)
The National Space Society (NSS) is a pro-space group formed in 1987 as a result of a merger between the National Space Institute and the L5 Society. Based in Washington, DC, it has an extensive network of local chapters. The NSS supports a general agenda of space development and human space presence, sponsors a major annual space development conference, and publishes the bimonthly magazine Ad Astra. It is associated with the political lobbying organizations Spacecause and Spacepac.