Feature

Downgrading of Pluto

Radio Waves from Venus

Exploding Solar Material Emitted near Sunspots

[Photograph]: Mass-Produced Transistors

Sun Called a Dwarf Star

Late Now for Much Horse Disease Spread

Use Interlingua at Hematology Meeting

In Science Fields

A Century of Color

Heart Drugs Hunted in Costa Rican Plants

Books of the Week

A-Bomb Fallout Studied