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Editor's choice

Jan 19, 2014

A special free-to-read digital edition containing 10 of our very best feature articles on the science and applications of light

In depth: September 2007



A grand journey through string theory


A testing time for strings

String theorists must make clear their links with experiment

Governing science

Robert P Crease argues that the same standards should be set for politicians of both left and right

String theory under scrutiny

Nancy Cartwright and Roman Frigg ask if falsifiability is a true judge of string theory

The magic touch

A one-to-one with Ulf Leonhardt


Reflecting symmetry

Beauty and truth in science