Stories by Sasha Nemecek

Two leading figures in the debate over genetic engineering defend their stances

Two leading figures in the debate over genetic engineering defend their stances

Mifepristone--a.k.a. RU 486--is anticipated to boost access to abortion. Based on the history of an older pill, it might not

One researcher's quest to understand how early Americans ate, and their mammoth refrigeration problem

Despite rising parental fears and rumors of dangers, vaccines are safer than ever

Explanations of the science underlying the world's most prestigious awards for physics, chemistry and physiology plus a look at the prizes for peace, won by a physicians organization, and economics

As the U.S. turns over the canal, Panama prepares for visitors

A hard-hat tour of the world's largest particle accelerator, under construction

The New Head of the World Health Organization, Gro Harlem Brundtland, argues that providing good health care can boost the bottom line

Widespread coral bleaching, even in deep waters, continues to perplex scientists

With negotiations on climate change policy stalled, some major corporations are setting their own environmental policies

The federal government targets disparities in health that result from ethnic background and economic status

American youths are suffering an epidemic of violence, both in and out of the classroom. Designing effective prevention programs is proving difficult

Cutbacks in the food stamp program are proving hazardous to the nation's health

Attempts begin to halt the practice of donating expired and unlabeled drugs to needy countries

A scientific wager reveals details about how proteins fold

The good and the bad about postmenopausal estrogen therapy