Since 1941 the National Speleological Society has been dedicated to protecting, studying, and exploring caves. With 8,000 members we are the largest cave focused membership organization in the world.

Founded as the National Space Institute (1974) and L5 Society (1975), which merged to form NSS in 1987 (see merger proclamation), NSS is widely acknowledged as the preeminent citizen’s voice on …

The National Space Society (NSS) is an American international nonprofit 501 (c) (3) educational and scientific organization specializing in space advocacy. It is a member of the Independent Charities of …

NSS is a registered 501 (c) (3) nonprofit organization.

15 hours ago · The NSS articulates administration’s national security vision and how elements of US power will be used in pursuit of national security goals.

4 days ago · The NSS declares what is important to America—its national interests, goals, and priorities—and emphasizes how the President envisions the use of America’s diplomatic, …

Dec 26, 2025 · Trump’s NSS 2025 signals a postliberal turn—retreating from liberal hegemony, reframing alliances transactionally, and exposing contradictions of a declining power The second …

The National Space Society (NSS) is an independent, educational, grassroots, nonprofit organization dedicated to the creation of a spacefaring civilization. The National Space Society envisions a future …

Founded in 1941, the NSS is the largest membership organization dedicated to caves & caving. Composed of over 8,000 members and 250+ local chapters - known as grottos - we work to connect …

The National Speleological Society (NSS) is an organization formed in 1941 to advance the exploration, conservation, study, and understanding of caves in the United States. Originally headquartered in …