The concept of a solar powered aircraft that roams the upper atmosphere inches one step closer to reality this week. On Nov. 19, NASA will for the first time publicly test launch Centurion, a

Can you eat to beat malignancy? A controversial diet book is just one sign of the evolutionary new thinking about food and health : a

Americans are embracing unconventional care as never before - and researchers are catching up : a

The experiments are so inflammatory that US Congress prohibits the National Institutes of Health from funding them. Yet they are so alive with promise-the promise of understanding how a hollow ball

Scientists say that, with gene therapy, they may soon be able to cure a child's inherited disease before he is even born. But should they be allowed to create kids with made-to-order traits? : a

A team of researchers from the United States and Sweden have found startling evidence that nerve cells or neurons, may regenerate. Their work could someday lead to a miracle for people with

There was a new hope for the women most vulnerable to breast cancer. The Food and Drug Administration approved the drug tamoxifen-already used in breast cancer treatment for 20 years-as the first

A slew of recent and upcoming papers pinpoint how talking with your hands can unlock what Robert Krauss professor of psychology at Columbia University calls "lexical memory." One study, for instance,

Some Europeans fear biotech food. That's not slowing farmers and big business in their march toward a new agricultural world : a

Amazon is our greatest forest, greatest wilderness, greatest repository of biological diversity and the greatest of environmental icons. And the Amazon's big problems - fires, reckless