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VOLUME 103 | NUMBER 1 | January 2015

Journey to the Solar System's Third Zone

S. Alan Stern

When New Horizons reaches Pluto in July, it will close one era of space exploration and open an exciting new one.


The Acoustic World of Harbor Porpoises

Magnus Wahlberg, Meike Linnenschmidt, Peter Madsen, Danuta Wisniewska, Lee Miller

New research gives a clearer picture of how this specialized mammal perceives its underwater environment.


Fly-By Forestry Takes Off

Catherine Clabby

Remote laser imaging can measure the health and density of forests, allowing scientists to observe large swaths of vital ecosystems all at once.


What Everyone Should Know about Statistical Correlation

Vladica Velickovic

A common analytical error hinders biomedical research and misleads the public.


Each Blade a Single Crystal

Lee S. Langston

Clever casting techniques produce jet engines that can withstand 2,000-degree temperatures, allowing unprecedented efficiency.


New Disease Emerges as Threat to Salamanders

Katie L. Burke

The invasive chytrid fungus is spreading in Europe; new policy could prevent its introduction in the United States.


First Person: Aaron Chou

Fenella Saunders


Can an Engineer Appreciate Art?

Henry Petroski

Physical rigor may seem at odds with playful whimsy, but the tension between the two has produced some of the greatest public works.


The Many Guises of Aromaticity

Roald Hoffmann

Is hype debasing a core chemical concept?


Journeys to the Brink

Ram Ramabhadran

A brief review of Shocked: Adventures in Bringing Back the Recently Dead, by David Casarett


Arsenic, the 'King of Poisons,' in Food and Water

Andrew Yosim, Kathryn Bailey, Rebecca C. Fry

Levels in common foods can exceed US standards for drinking water.


Taste Masters

Sandra J. Ackerman

2015-01NightstandAckermanF1.jpgClick to Enlarge ImageA brief review of Umami: Unlocking the Secrets of the Fifth Taste, by Ole G. Mouritsen and Klavs Styrbaek


The World's Survivors

Katie L. Burke

A brief review of The Oldest Living Things in the World, by Rachel Sussman


The Bonds that Make Everything

Fenella Saunders

2015-01NightstandSaundersF2.jpgClick to Enlarge ImageA brief review of Molecules: The Elements and Architecture of Everything, by Theodore Gray, with photographs by Nick Mann


When the Cause of Stroke Is Cryptic

David Kent, David Thaler

Identifying the reason for a stroke can help doctors avert future ones; if the cause remains unknown, mathematics may point toward a probabilistic answer.


Cultures of Code

Brian Hayes

Three communities in the world of computation are bound together by common interests but set apart by distinctly different aims and agendas.


Like Holding a Piece of Sky

Mark Miodownik

Light, airy aerogels are complex, strong, and exceptionally insulating.


Time Brings Change

Jamie L. Vernon


Living Fossil Statistics


Rembrandt's Grasp



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