15 September 2010 VITA MARTIN S. ELVIS Senior Astrophysicist 1. Education: Bristol University, B.Sc., Physics (1973) Sussex University, M.Sc., Astronomy (1974) Leicester University, Ph.D., X-ray Astronomy (1978) 2. Positions Held: 1977-1978 1978-1980 19801980-1993 1989-1998 1993-1997 1997Research Associate, University of Leicester SRC Postdoctoral Research Fellow, University of Leicester and Harvard Smithsonian Center for Astrophysics Associate, Harvard College Observatory Astrophysicist (Trust),

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... Bad Astronomy . ... Mad Science . ... I want to know if a space colony or large sattelite was established at any Lagrange point, like L5, would another Colony or sattelite have to be placed at L4 in order for the earth's orbit to remain stable? ... In the late 1700s, French mathematician Joseph Lagrange discovered that if you have a massive object orbiting another massive object (say, the Earth orbiting the Sun), there exist five points of equilibrium where the forces all balance. ... 2008 Phil...