Science News

Science newspaper is a magazine specializing in Science topics.

Articles from Vol. 148, No. 24, December 9

Body's Proteins Suppress AIDS Virus
After a frustrating, almost decade-long quest for HIV-fighting molecules naturally secreted by the body's immune cells, investigators have finally found a quartet of proteins that suppresses the replication of the deadly AIDS virus in infected cells....
CIA Studies Fan Debate over Psi Abilities
Scientific debate over the existence of at least some types of paranormal, or psi, phenomena took a strange twist last week. The federal government revealed that it had funded over the past 20 years a $20 million research effort concerned largely with...
DNA Tests Identify Hoatzin's Cousins
The closest relatives of the hoatzin, a blue-faced South American bird, are neither turkeys nor chickens, as many bird experts had assumed; they are cuckoos, a new study concludes. The finding shows that 220 years of research on the hoatzin was no wild-goose...
Hormone Triggers Cells to Turn to Fat
Two groups of investigators have discovered a natural hormone that triggers the production of fat cells. While the finding could provide new strategies for the battle of the bulge, understanding the hormone's activities may also lead to new antidiabetes...
Our Atmospheric Moon
New observations reveal that the moon's tenuous atmosphere extends twice as far above the lunar surface as previous observations had shown. The new images, taken during a lunar eclipse, also suggest that sunlight striking the moon probably generates...
Researchers Access Secret Seismic Data
International negotiators are making headway on a treaty to ban all tests of nuclear weapons. Yet even before countries reach a final agreement, expected next year, seismologists are benefiting from access to a new network of sensitive listening posts...
Testing Genes: Physicians Wrestle with the Information That Genetic Tests Provide
Over the past decade, scientists have unearthed a dizzying number of genes responsible for human ailments. Now, as widespread genetic testing is poised to become a reality, many physicians find themselves conveying information that they don't fully understand....
U.N. Treaty to Aid 'International' Fish
The United Nations began accepting signatures this week for a treaty to protect some 20 percent of the world's fishes. It covers not only those pelagic giants-such as sharks, tuna, and marlins-that can migrate throughout the ocean, but also the stocks...
Vegemania: Scientists Tout the Health Benefits of Saponins
It sounds like a plot-a vegetarian conspiracy against a carnivorous, burger-chomping public. As if fiber and antioxidants weren't enough, chemists studying the healthful properties of plants now say that vegetables contain yet another class of disease-fighting...
Viruses Can Move: Tale of a Telltale Tail
Viruses are nature's great hijackers. They take over a host cell's biochemical machinery to make their own proteins as well as new genetic material. Now, scientists report that when viruses are poised to infect something new, they sometimes also make...