The January/February 2014 issue of Horizons is now online (42 pages in an 8 MB PDF file). Horizons is the newsletter of the Houston Section of the American Institute of Aeronautics and Astronautics (AIAA). The cover story is, “GAIA Leaps Past Hipparcos,” by Wes Kelly, Triton Systems LLC. This issue also contains, Physics-Based Optimization Methods, by Dr. Patrick E. Rodi (with two animated figures), “In Memoriam: Robert L. Sackheim, 1937 – 2013,” two book reviews (Space Elevators and The Case for Space Solar Power), “History as Science: Megatons to Megawatts” (Kelly’s Corner), “The First French International Dark Sky Reserve: Pic du Midi,” climate change articles, and much more.