News
- Health & Medicine
Enzyme Shortage May Lead to Lupus
Without the enzyme DNase I, mice are vulnerable to symptoms of lupus, a debilitating autoimmune disease.
- Health & Medicine
Cycling and surgery have similar effect
Among people with chest pain because of clogged heart arteries, regular exercise on a stationary bike reduced symptoms better than surgery did.
- Health & Medicine
A hot new therapy?
Spending time in a sauna improves heart function in people with chronic heart failure.
- Planetary Science
Seeing Saturn
After 5 years of interplanetary travel, the Saturn-bound Cassini spacecraft has taken its first picture of the ringed planet.
- Health & Medicine
Protein may signal heart problems
A protein already linked to inflammation is also a strong predictor of heart problems.
- Health & Medicine
Natural fluoride isn’t quite enough
In the absence of a public water-fluoridation program in eastern Germany, natural background concentrations of fluoride in drinking water affect children’s dental health.
- 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.
- 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.
