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- L5_Society abstract "The L5 Society was founded in 1975 by Carolyn and Keith Henson to promote the space colony ideas of Gerard K. O'Neill.The name comes from the L4 and L5 Lagrangian points in the Earth–Moon system proposed as locations for the huge rotating space habitats that O'Neill envisioned. L4 and L5 are points of stable gravitational equilibrium located along the path of the moon's orbit, 60 degrees ahead or behind it.An object placed in orbit around L5 (or L4) will remain there indefinitely without having to expend fuel to keep its position, whereas an object placed at L1, L2 or L3 (all points of unstable equilibrium) may have to expend fuel if it drifts off the point.".
- L5_Society thumbnail Lagrange_points_Earth_vs_Moon.jpg?width=300.
- L5_Society wikiPageExternalLink lists.
- L5_Society wikiPageExternalLink nss-chapters-01.html.
- L5_Society wikiPageExternalLink moon.html.
- L5_Society wikiPageExternalLink www.nss.org.
- L5_Society wikiPageExternalLink L5news1975.htm.
- L5_Society wikiPageExternalLink L5news1976.htm.
- L5_Society wikiPageExternalLink L5news1977.htm.
- L5_Society wikiPageExternalLink L5news1978.htm.
- L5_Society wikiPageExternalLink L5news1979.htm.
- L5_Society wikiPageExternalLink L5news1980s.htm.
- L5_Society wikiPageExternalLink index.html.
- L5_Society wikiPageExternalLink nss.html.
- L5_Society wikiPageExternalLink adastra.
- L5_Society wikiPageID "1955923".
- L5_Society wikiPageRevisionID "572404322".
- L5_Society hasPhotoCollection L5_Society.
- L5_Society subject Category:Non-profit_organizations_based_in_the_United_States.
- L5_Society subject Category:Organizations_established_in_1975.
- L5_Society subject Category:Scientific_organizations_based_in_the_United_States.
- L5_Society subject Category:Space_advocacy_organizations.
- L5_Society subject Category:Space_colonization.
- L5_Society subject Category:Space_non-governmental_organizations.
- L5_Society comment "The L5 Society was founded in 1975 by Carolyn and Keith Henson to promote the space colony ideas of Gerard K. O'Neill.The name comes from the L4 and L5 Lagrangian points in the Earth–Moon system proposed as locations for the huge rotating space habitats that O'Neill envisioned.".
- L5_Society label "L5 Society".
- L5_Society label "L5 Society".
- L5_Society label "L5協会".
- L5_Society sameAs L5_Society.
- L5_Society sameAs L5協会.
- L5_Society sameAs m.068sb8.
- L5_Society sameAs Q3205870.
- L5_Society sameAs Q3205870.
- L5_Society wasDerivedFrom L5_Society?oldid=572404322.
- L5_Society depiction Lagrange_points_Earth_vs_Moon.jpg.
- L5_Society homepage www.nss.org.
- L5_Society isPrimaryTopicOf L5_Society.