Uncategorized
- Earth
Child-care sites, health threats
Federal agencies have completed the first national study of lead, pesticides, and allergens in U.S. child-care facilities.
- Animals
Hawkmoths can still see colors at night
For the first time, scientists have found detailed evidence than an animal—a hawkmoth—can see color by starlight.
- Tech
Resistancefree wire takes long jump
A wire-making company has demonstrated a process that yields potentially inexpensive, high-current superconducting wires about 10 times longer than previous prototypes.
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Many people who are exploring the possible connection between childhood vaccines and autism claim that the culprit is not the vaccines themselves, but the mercury-containing preservative thimerosal. Does the Danish MMR vaccine contain it? Anne SealsSumner, Wash. Thimerosal has never been used in the MMR vaccine, either in the United States or in Denmark .–B. […]
- Health & Medicine
Study exonerates childhood vaccine
A nationwide study in Denmark provides strong evidence that a childhood vaccine once blamed for some cases of autism plays no role in the development of that neurological disorder.
- Astronomy
Galactic cannibalism strikes again
Astronomers have discovered the remains of a tiny galaxy that was swallowed by the galaxy Centaurus A only a few hundred million years ago.
- Earth
El Niños came more often in Middle Ages
Analyses of layered sediments from a South American lake suggest that the worldwide warm spells known as El Niños occurred more frequently about 1,200 years ago, when Europe was entering the Middle Ages, than they do today.
- Paleontology
Forged fossil is a fish-eating fowl
Detailed analyses of Archaeoraptor, a forged fossil once thought to be a missing link between dinosaurs and birds, reveal that the majority of that fake comes from an ancient, fish-eating bird.
- Animals
Mad Deer Disease?
Chronic wasting disease, once just an obscure brain ailment of deer and elk in a small patch of the West, is turning up in new places and raising troubling questions about risks.
- Earth
Taming Toxic Tides
A growing international cadre of scientists is exploring a simple strategy for controlling toxic algal blooms: flinging dirt to sweep the algae from the water.
- Planetary Science
Martian Radiation: Giving off a faint X-ray glow
Astronomers have for the first time taken an X-ray image of the Red Planet.
- Health & Medicine
Predisposed to Trouble: Gene variants implicated in stomach cancer
A person's risk of stomach cancer can depend on the genetics of both the individual and the bacterium Helicobacter pylori.
