Table of Contents February 1997

Discover Magazine's mission is to enable readers to lead richer lives by explaining and expanding their universe.  Each month we bring you in depth information and analysis from various topics ranging from technology and space to the living world we live in.
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Peering out to the edge of the universe, astronomers catch glimpses of galaxies in the making.
The world's tiniest radar tags are making a Rocky Mountain butterfly--and its ecology--a lot easier to follow.
DNA is more than the storehouse of life's secrets, it's also a marvelous construction toy.
Fourteen hundred years ago a central American volcano erupted, encasing an entire village in ash. Today that modest village is revealing what no stone temple or gold mask ever could: the details of ordinary life.
The air teems with viruses, bacteria, fungi, and other microscopic creatures. They can cross oceans on a gust of wind. Some can cause crop failures, disease, and death. Some can be used as invisible weapons, and we know next to nothing about them.