Feature

Heart Drugs Hunted in Costa Rican Plants

Sun Called a Dwarf Star

Model Satellite and Its Radio Displayed

Some Floods Help Fishermen

Exploding Solar Material Emitted near Sunspots

[Photograph]: Totem Pole

A-Bomb Fallout Studied

New Machines and Gadgets

Rapid Reading Courses May Be Waste of Time

Stars Make All Elements

In Science Fields

Front Matter