Magazine

September-October 2003

Current Issue

September-October 2003

Volume: 91 Number: 5

The decommissioning of the Maine Yankee nuclear power plant has required the disposal of many large components, including the inner shroud of the reactor vessel, shown here. Submerged in water, the radioactive shroud produces an eerie glow as the result of Cherenkov radiation. Other waste from the plant includes the spent fuel generated over its 24 years of operation. As with all commercial nuclear plants, this spent fuel contains plutonium, which can be used to fabricate nuclear weapons. In "Thorium Fuel for Nuclear Energy," Mujid S. Kazimi discusses how the use of thorium-based fuels could help prevent the diversion of spent-fuel plutonium to bomb-making. (Courtesy of the Maine Yankee Atomic Power Company and Framatome ANP.)

In This Issue

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

The Useful Pursuit of Shadows

Graeme Stephens

Physics

The study of clouds has profoundly influenced science and human culture and stands poised to lead climate science forward again

Thorium Fuel for Nuclear Energy

Mujid Kazimi

Physics

An unconventional tactic might one day ease concerns that spent fuel could be used to make a bomb

Discovering the Edge of the Solar System

Chadwick Trujillo

Astronomy

Recent discoveries suggest that planets larger than Pluto may exist in the outer reaches of our solar system

The Sweet Science of Glycobiology

Ram Sasisekharan, James Myette

Biology Chemistry

Complex carbohydrates, molecules that are particularly important for communication among cells, are coming under systematic study