Interesting--but probably wrong. That sums up the reaction of most physicists and radio astronomers to an extraordinary claim appearing in today's Physical Review Letters that space itself might have a favored direction--in effect, an up and a down.
To mount a successful attack, it sometimes helps to get a detailed look at the target. Now AIDS researchers have a fine-grained picture of a potential quarry: an HIV coat protein that helps the virus fuse with host cells.
WASHINGTON, D.C.--An hours-long pulse of gamma rays from a distant galaxy is the most powerful ever seen from a celestial source, astronomers said here today at a meeting of the American Physical Society.
Scientists have unearthed a fossil of a primitive snake with stubby legs. The 95-million-year-old specimen, described in today's issue of Nature, may be the long-sought missing link between snakes and their lizard ancestors.
From a chaotic prehistoric world teaming with 30 different kinds of apes, a single lineage survived to give rise to modern apes and humans. Now, thanks to new fossil finds, two African primates are claiming prime ancestral spots on the ape family tree.
The odor of rotting vegetables disgusts most of us, and for good reason: Eating bad food can make us sick. Now scientists have tracked this inborn disgust back to its roots--the amygdala, a part of the brain that processes emotions.
SAN FRANCISCO--Like switching on a miniature furnace in the body, scientists have created a compound that spurs certain fat cells to burn up calories without forcing them to endure jogging, swimming, or biking.
Zoologist Nikolaas Tinbergen was born in The Hague, the Netherlands, on this day in 1907. Tinbergen helped found the fledgling field of ethology, the study of how animals behave in response to environmental stimuli.
WASHINGTON, D.C.--After 2 years of turmoil, the National Academy of Engineering (NAE) has a new president. William Wulf, a University of Virginia computer engineer, was elected today by the NAE's members to lead their powerful academy into the next century.
SAN FRANCISCO--The kidnapping and murder of 3-year-old Katie Lynn Lee in 1993 could leave a lasting legacy to law enforcement: methods to obtain children's fingerprints before they evaporate from crime scenes and to develop chemical "profiles" of criminals.