Skip to main content


The Gas between the Stars

Filled with colossal fountains of hotgas and vast bubbles blown by exploding stars, the interstellar medium is far more interesting than scientists once thought

By Ronald J. Reynolds

A Vertical Leap for Microchips

Engineers have discovered a way to pack more computing power into microcircuits: build them vertically as well as horizontally

By Thomas H. Lee

Next-Generation Nuclear Power

Advanced nuclear power plants might be the best way to meet future energy needs without worsening global warming

By James A. Lake, Ralph G. Bennett and John F. Kotek

The First Human Cloned Embryo

Cloned early-stage human embryos--and human embryos generated only from eggs, in a process called parthenogenesis--now put therapeutic cloning within reach

By Carol Ezzell, Jose B. Cibelli, Michael D. West and Robert P. Lanza

The Economics of Fair Play

Biology and economics may explain why we value fairness over rational selfishness

By Karl Sigmund, Ernst Fehr and Martin A. Nowak


Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format

NEW eBook!

Get the latest on Alzheimer’s and more