L5 Society
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The L5 Society was founded in 1975 by Carolyn Meinel and Keith Henson to promote the space colony ideas of Gerard K. O'Neill.
A diagram showing the five Lagrangian points in a two-body system, with one body far more massive than the other (e.g. Earth and Moon). In this system L3–L5 will appear to share the secondary's orbit, although they are situated slightly outside it.
Artist's conception of a space habitat called the Stanford torus, by Don Davis.
NASA concept art from 2001 of an envisioned lunar mining facility.
Gerard K. O'Neill
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Gerard Kitchen O'Neill was an American physicist and space activist. As a faculty member of Princeton University, he invented a device called the particle storage ring for high-energy physics experime
L5 Society
…The L5 Society was founded in 1975 by Carolyn Meinel and Keith Henson to promote the space colony ideas of Gerard K. O'Neill. In its early years, the L5 Society was deeply rooted in 1970s counterculture, driven by utopian goals of establishing space-based settlements as havens…
NASA envisioned an ambitious scientific exploration of the Moon.
Bernal sphere, an "inside-out planet"
O'Neill cylinders as illustrated in The High Frontier
O'Neill's ashes were carried on the upper stage of an Orbital Sciences Pegasus