Book Review: Fifty Years on the Space Frontier – Halo Orbits, Comets, Asteroids, and More

Fifty Years on the Space Frontier: Halo Orbits, Comets, Asteroids, and More by Robert W. Farquhar; Outskirts Press, Inc., Denver, Colorado; (hard cover); $32.36; 2011 There is renewed and growing interest in imaginative use of L-points in space – special spots in...

Humans in Space: A Look Back at 2011, A Look Ahead at 2012

  A year of milestones in human spaceflight, some tinged with nostalgia, is drawing to a close. The New Year opens with the U. S.and its global partners settled in Earth orbit, and a NASA strategy for the future human exploration of deep space starting to gel. In...