Features
Reversing Light With Negative Refraction 
Materials engineered to have negative permittivity and permeability demonstrate
exotic behavior, from a negative refractive index to subwavelength focusing — John B. Pendry and David R. Smith
Gravitational Lenses
The bending of light reveals information about dark energy, dark matter, and
black holes — Leon V. E. Koopmans and Roger D. Blandford
A Conversation About Solid−State Physics
Hans Bethe reminisces about the first applications of quantum mechanics to the
theory of solids in the late 1920s and early 1930s — Hans A. Bethe and N. David Mermin
Departments
Letters 
Nuclear Power One of Several Green Weapons Against Global Warming
Data Volume Is Fourth Frontier in Astrophysical Observation
Tevatron's Complex Collider Cousins
Physics Curriculum Needs Fluid Mechanics
Green's Theorem in Stained Glass
More on Isotopic Analysis of Teeth and Bones
Reminiscence of Wolfgang Pauli
More Perks of Industrial Physics
Hydrogen Is Energy Carrier, Not Source
Correction
Search and Discovery
High-Redshift Supernovae Reveal an Epoch When Cosmic Expansion Was Slowing Down
The Hubble Space Telescope has provided a harvest of supernovae that exploded when the universe was less than half its present linear size.
Bending Nature's Rules to Pattern Nanostructures on Sticky Surfaces
Researchers form patterned nanowires by adapting a versatile technique used to self-assemble clusters on surfaces.
Is Sedna's Strange Orbit the Shape of Things to Come?
A newly discovered distant minor planet may provide clues about the Sun's early environment.
Lampreys Rely on a Molecular Switch to Detect UV Light
By applying a combination of biochemical and biophysical techniques, researchers have identified a UV-sensitive photoreceptor in the pineal gland of the Japanese river lamprey.
Issues and Events
Colwell Reflects on Six Years at NSF Helm
Colwell is proud of her accomplishments and passionate about her science, and
she has a friendly relationship with both Republicans and Democrats.
Scholars Probe Nanotechnology's Promise and Its Potential Problems 
With a revolution in everything from toys to tumors on the horizon, scientists in the nanotechnology arena are working to gain the public's trust.
Nuclear Pit Facility Should Wait for Science and Policy Answers
An American Physical Society panel is urging the federal government to wait until key technical and policy issues are answered before embracing a National Nuclear Security Administration (NNSA) proposal to build a multibillion-dollar facility to manufacture new plutonium cores for the US nuclear weapons stockpile.
US Celebrates Oppenheimer's Centenary
On 25 June, a two-day commemoration of the centenary of J. Robert Oppenheimer's birth kicks off with a dedication by Senators Pete V. Domenici (R-NM) and Jeff Bingaman (D-NM) at the house in Los Alamos, New Mexico, where Oppenheimer and his family lived while he headed the Manhattan Project.
News Notes
New tech prize honors Web inventor; Neutron scattering archives
Web Watch
Heavens-Above; Institute and Museum of the History of Science; Three Lectures by Hans Bethe
Society Meetings
CACA Will Meet in the Windy City
Books
Sync: The Emerging Science of Spontaneous Order, S. Strogatz (reviewed by N. Goldenfeld) 
The Discovery of Global Warming, S. R. Weart (reviewed by P. Morrison)
Numerical and Analytical Methods for Scientists and Engineers Using Mathematica, D. Dubin (reviewed by D. J. Wales)
The Music of the Primes: Searching to Solve the Greatest Mystery in Mathematics, M. du Sautoy, The Riemann Hypothesis: The Greatest Unsolved Problem in Mathematics, K. Sabbagh, and Prime Obsession: Bernhard Riemann and the Greatest Unsolved Problem in Mathematics, J. Derbyshire (reviewed by J. P. Keating)
New Books
New Products
Focus on Sensors 
We Hear That
Two Theoretical Physicists Share Cosmology Prize
AIP Gemant Award Goes to Friedman
Zeki Wins King Faisal Science Prize
Killeen Is AGU's President-Elect
Sargent Is New Vice President for AAS
In Brief
Obituaries
Cornelis Marius Braams
Allen Lewis King
Ian Ilyich Kogan
Prithe Paul Singh
Job Opportunities |