Feature

Famous Variable Star Now Brighter than Ever Before

Front Matter

In Science Fields

Cosmic Rays Supply Most of Energy for Universe

Two Mental Diseases Really Five, Statistical Study Shows

First Glances at New Books

Free of Ice, Northern Lands Appear to Be Tilting

Plant and Ants Cooperate to Destroy Grasshoppers

Gold Soaks up Water and Gets Hot

Valuable Chemical to Be Extracted from Seawater

An Ape for a Baby Sister

Volcanic Eruptions Possible in Arizona