News
- Astronomy
Stellar Tantrums: Tracking the flaring cycles of other stars
Astronomers are closely tracking the ebb and flow of magnetic activity and powerful flares on stars other than the sun.
- Health & Medicine
Better Bones: Women benefit from low dose of estrogen
Ultralow doses of estrogen and progesterone given to postmenopausal women boost bone density compared with placebos, without causing the adverse effects seen in some women who get larger doses of these hormones.
- Materials Science
Plastic Chips: New materials boost organic electronics
A new class of electrically conducting organic molecules provides researchers with improved materials with which to fabricate plastic electronic devices.
- Animals
To Bee He or She: Honeybees use novel sex-setting switch
After more than a decade of work, an international team has found the main gene that separates the girls from the boys among honeybees.
- Astronomy
Black Hole Life Preserver: Don’t get sucked in without one
By temporarily counteracting a black hole's tremendous tidal forces, a proposed black hole life preserver would slightly lengthen the life and shorten the agony of anyone exploring one of these gravitational beasts.
- Earth
Long Ride West: Many western sediments came from Appalachians
Much of the material in several thick layers of sandstone in the western United States originated in the Appalachians.
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Dyslexia’s DNA Clue: Gene takes stage in learning disorder
For the first time, scientists have identified a gene that appears to influence the development of at least some cases of dyslexia.
- Physics
Hydrogen hoops give superfluid clues
Tiny rings of hydrogen molecules show signs of possible superfluid behavior, suggesting that helium might not be the only superfluid after all.
- Physics
Electrons get a crack at the nucleus
As long suspected but never before shown, electrons orbiting an atom can directly excite the atom's nucleus.
- Earth
A late arrival for platinum and gold?
An extraterrestrial source may explain why Earth's mantle holds more platinum, gold, and certain other elements than it should.
- Earth
Strange crystal birth found in mine
Deep in a Wisconsin mine, researchers have uncovered a new way for crystals to grow in nature.
- Health & Medicine
Old polio vaccine free of HIV, SIV
Three laboratories analyzing remaining samples of polio vaccine used in the late 1950s find that none contains any human or simian immunodeficiency virus, or chimpanzee DNA—making polio vaccine unlikely to be the cause of the initial HIV outbreak in central Africa.
