News
- Astronomy
Craft spies new class of gamma-ray sources
Roughly half the 120 unidentified sources of high-energy gamma-ray emissions in the Milky Way—those at midgalactic latitudes—may comprise a new class of objects and originate from a belt of massive stars that lies only a few hundred light-years from the solar system.
- Agriculture
Toxic bugs taint large numbers of cattle
U.S. cattle have dramatically higher rates of infection with a virulent food-poisoning bacterium than had been realized, a factor that leads to widespread carcass contamination during slaughter.
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Hungry spiders tune up web jiggliness
Octonoba spiders tune the sensitivity of their webs according to how hungry they are.
- Tech
Coming soon: Knavish electromagnetic acts
Scientists have created a device with bizarre electromagnetic properties—but so far, only at microwave frequencies.
- Health & Medicine
Pig-cell grafts ease symptoms of Parkinson’s
Pig brain cells transplanted into the brains of patients with advanced Parkinson's disease help some of the patients regain mobility and the ability to do basic tasks.
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Cloned pigs, down on the corporate farm
A biotech company announced the first cloning of pigs.
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Researchers enjoy bitter taste of success
Scientists have identified a large family of proteins that work as taste receptors for bitterness.
- Chemistry
Buckyballs Can Come from Outer Space
A new analysis settles the question of whether carbon molecules found in meteorites have an extraterrestrial origin.
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Gender Gap: Parasites’ bias for big animals gives female mammals longevity
Parasites infect male mammals more often than females, possibly contributing to the tendency among mammals of males to die earlier than females.
- Animals
Eat the Kids: Are cannibal fish just freshening the O2?
In beaugregory damselfish, males that snack on some of the eggs supposedly in their care may end up benefiting the rest of the egg clutch by making more oxygen available.
- Chemistry
The Dirt on Art: Chemists test laser cleanup of paintings
A new experiment shows that lasers can be a safe tool for cleaning paintings.
- Health & Medicine
Acetaminophen in Action: Effect on an enzyme may stop pain, lower fever
The discovery of an enzyme scientists are calling cyclooxygenase-3, which is disabled by acetaminophen, might explain why this drug can stop pain and fever but not inflammation.
