The battlefield in northern Syria just got more complicated. The U.S. military announced Nov. 16 that it has withdrawn its forces supporting the Turkish-backed rebel operation in northern Aleppo. As part of Operation Noble Lance, the United States had deployed special operations forces and air support to help with Turkey's Operation Euphrates Shield. The U.S. withdrawal highlights the conflicting priorities between the United States and Turkey as well as the dangers that could await Turkey as its heads into the fight in northern Syria alone....The SDSS Web Site is http://www.sdss.org/.

The SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions. The Participating Institutions are the American Museum of Natural History, Astrophysical Institute Potsdam, University of Basel, University of Cambridge, Case Western Reserve University, University of Chicago, Drexel University, Fermilab, the Institute for Advanced Study, the Japan Participation Group, Johns Hopkins University, the Joint Institute for Nuclear Astrophysics, the Kavli Institute for Particle Astrophysics and Cosmology, the Korean Scientist Group, the Chinese Academy of Sciences (LAMOST), Los Alamos National Laboratory, the Max-Planck-Institute for Astronomy (MPIA), the Max-Planck-Institute for Astrophysics (MPA), New Mexico State University, Ohio State University, University of Pittsburgh, University of Portsmouth, Princeton University, the United States Naval Observatory, and the University of Washington.

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