Magazine

January-February 2004

Current Issue

January-February 2004

Volume: 92 Number: 1

A numerical simulation shows the distribution of dark matter when the universe was about one billion years old. Dark matter evolved quickly after the Big Bang, providing normal matter with the template to form the large-scale structure of the universe. In "The Cosmic Web," Robert Simcoe describes how astronomers use telescopes and computers to understand the intergalactic medium and its interaction with the first stars and galaxies. The simulation box is about 16 million light-years across. (Image courtesy of Renyue Cen, Princeton University.)

In This Issue

  • Agriculture
  • Art
  • Astronomy
  • Biology
  • Chemistry
  • Communications
  • Computer
  • Engineering
  • Environment
  • Ethics
  • Evolution
  • Mathematics
  • Physics
  • Policy
  • Psychology
  • Sociology
  • Technology

The Evolution of Jealousy

Christine Harris

Anthropology Evolution Psychology

Did men and women, facing different selective pressures, evolve different "brands" of jealousy? Recent evidence suggests not

Human Biomonitoring of Environmental Chemicals

Ken Sexton, Larry Needham, James Pirkle

Biology Chemistry Environment

Measuring chemicals in human tissues is the "gold standard" for assessing people's exposure to pollution

The Cosmic Web

Robert Simcoe

Astronomy Computer

Observations and simulations of the intergalactic medium reveal the largest structures in the universe

Ancient Earthquakes at Lake Lucerne

Michael Schnellmann, Flavio Anselmetti, Domenico Giardini, Judith McKenzie, Steven Ward

Physics

A recent survey of the sediments beneath a Swiss lake reveals a series of prehistoric temblors

Scientists' Nightstand