Issues
Readers’ Forum
Search and Discovery
Captured cosmic dust may have interstellar origins
The multiyear effort that identified the candidate interstellar grains was, in part, a triumph of citizen science.
Tailor-made molecules grow into identical carbon nanotubes
Organic chemistry and surface science combine to overcome a long-standing materials challenge.
Musical pitch perception starts early
Tasked with extracting the fundamental frequency from a complex of high harmonics, three-month-old infants outperformed many adults.
Issues and Events
From Beijing to Kigali, ICTP makes itself at home in the developing world
For 50 years the International Centre for Theoretical Physics has hosted scores of scientists and students at its campus in Trieste, Italy. It now hopes to replicate that model at regional partner institutions.
DARPA looks beyond GPS for positioning, navigating, and timing
Cold-atom interferometry, microelectromechanical systems, signals of opportunity, and atomic clocks are some of the technologies the defense agency is pursuing to provide precise navigation when GPS is unavailable.
New telescope in Turkey
The realization of a homegrown, bottom-up telescope is a source of national pride. The next challenge will be to grow a community to exploit it.
DOE acquiring new supercomputers and climate models
Researchers say they are preparing the way for scientific exascale computing.
Articles
How to deal with climate change
Climate change is a complex and contentious public issue, but the risk-management options available to us are straightforward and have well-characterized strengths and weaknesses.
Atom-like crystal defects: From quantum computers to biological sensors
Impurities in a crystal lattice are the key ingredient in recent efforts to control and apply the coherence and entanglement of spins in condensed-matter systems.
Quantum Darwinism, classical reality, and the randomness of quantum jumps
The core principles that underlie quantum weirdness also explain why only selected quantum states survive monitoring by the environment and, as a result, why we experience our world as classical.
Books
Shifting Standards: Experiments in Particle Physics in the Twentieth Century
In Search of the True Universe: The Tools, Shaping, and Cost of Cosmological Thought
New Products
Obituaries
Geoffrey V. Chester
Arthur Michael Wolfe
Quick Study
Emergent aerodynamics in wind farms
New designs for inexpensively harvesting wind energy were inspired by the fluid mechanics of fish schools.