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November-December 2011
Volume: 99 Number: 6
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"Empirical Software Engineering," by Greg Wilson and Jorge Aranda
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"Making Biofuel from Microalgae," by Philip T. Pienkos, Lieve Laurens and Andy Aden
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"Whatever Became of Holography?," by Sean F. Johnston
 
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September-October 2011
Volume: 99 Number: 5
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"Tardigrades," by William R. Miller
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"Self-healing Polymers and Composites," by S. R. White, B. J. Blaiszik, S. L. B. Kramer, S. C. Olugebefola, J. S. Moore and N. R. Sottos
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"Urbanism on West Africa's Slave Coast," by J. Cameron Monroe
 
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July-August 2011
Volume: 99 Number: 4
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"Giant Viruses," by James L. Van Etten
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"The Future of Time: UTC and the Leap Second," by David Finkleman, Steve Allen, John H. Seago, Rob Seaman and P. Kenneth Seidelmann
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"Alone in the Universe," by Howard A. Smith
 
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May-June 2011
Volume: 99 Number: 3
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"Global Energy: The Latest Infatuations," by Vaclav Smil
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"Marking Loons, Making Progress," by Walter Piper, Jay Mager and Charles Walcott
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"Pliocene Climate Lessons," by Marci Robinson
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"Porphyrins: One Ring in the Colors of Life," by Franck E. Dayan and Emilie A. Dayan
 
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March-April 2011
Volume: 99 Number: 2
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"Refuting a Myth About Human Origins," by John J. Shea
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"Ancestors of Apollo," by Dennis Danielson
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"The Evolution of Cave Life," by Aldemaro Romero
 
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January-February 2011
Volume: 99 Number: 1
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"Fractures and Bindings of Consciousness," by Don M. Tucker and Mark D. Holmes
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"From Treasury Vault to the Manhattan Project," by Cameron Reed
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"Chromatin Evolving," by Gregory A. Babbitt
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Classics: "Galaxies," by Virginia Trimble
 
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