Challenges for 1994

Heart of the Matter

A particle "factory" for probing a seminal asymmetry

From Mice to Men

The burgeoning business of gene therapy

Bright Future

Porous silicon proves versatile, but is it real?

The Color of Sound

Shedding light on sonoluminescence

Clean Definitions

The nation contemplates what to do with Superfund

Deliverance

Medicine closes in on an artificial liver device

Core Questions

Glaciers and oceans reveal a mercurial climate

Fractured Functions

Does the brain have a supreme integrator?

Living Legend

Is the last ground sloth hidden in the Amazon?

A Girl's Best Friend

Diamond continues to resist efforts at economic synthesis

When Cells Divide

Making space for the next wave of wireless communications

Shrinking Sandbox

IBM's woes visit its esteemed research division

A Joycean Mutation

Researchers discover a new mechanism for cancer

Wanted: a Defense R&D Policy

Defense researchers seek to redefine their mission

Cosmic SNUs

Closing in on the "solar neutrino problem"

The Fertility Decline in Developing Countries

Family size is decreasing in many Third World countries. The reasons provide the key to slowing population growth

The Compton Gamma Ray Observatory

A steady stream of data from this orbiting observatory is painting a portrait of a dynamic and often enigmatic cosmos

MHC Polymorphism and Human Origins

The diversity of human tissue types was generated long before Homo sapiens emerged

Africanized Bees in the U.S.

Africanized honeybees have reached the U.S. from points south As more of them arrive, they will certainly wreak some havoc but perhaps not the type their "killer bee" nickname would imply...

Drugs by Design

Structure-based design, an innovative approach to developing drugs, has recently spawned many promising therapeutic agents, including several now in human trials for treating AIDS, cancer and other diseases...

Coupled Oscillators and Biological Synchronization

A subtle mathematical thread connects clocks, ambling elephants, brain rhythms and the onset of chaos

The Death Cults of Prehistoric Malta

New archaeological excavations reveal that as the ancient island societies suffered from environmental decline, they developed an extreme religious preoccupation with life and death...

Current Events

Now that the blizzard of hype has stopped, workers are gradually realizing the promise of high-temperature superconductors