On the Cover
September-October 2008 Volume 96, Number 5
The past half-century has witnessed incredible advances in the capabilities of satellites, leading to unprecedented insights into our planet. As Andy J. Tatem, Scott J. Goetz and Simon I. Hay report in "Fifty Years of Earth-observation Satellites," these devices, now numbering more than 150, are essential for monitoring events both natural and influenced by human activities, such as the El Nino Southern Oscillation. ...
The process known as group selection was once accepted unthinkingly, then was widely discredited; it's time for a more discriminating assessment
Views from space have led to countless advances on the ground in both scientific knowledge and daily life
Rational thinking about water may be key to ensuring a clean, plentiful supply
The curiosity of biochemists, mixed with some obvious economic incentives, created a family of powerful cardiovascular drugs
* access restricted to members and subscribers
A review of A Nuclear Family Vacation: Travels in the World of Atomic Weaponry, by Nathan Hodge and Sharon Weinberger. Hodge and Weinberger tour nuclear test sites, weapons design labs, production facilities, bunkers and missile silos in the United States, the Marshall Islands, Kazakhstan, Russia and Iran, giving readers a sense of the vast scale of the nuclear weapons enterprise that has been built since the early 1940s
See all book reviews for this issue.