5,012 results
- Planetary Science
Sister Planet: Mission to Venus reveals watery past
The Venus Express probe has found evidence that Venus once had more water than it does today, and has provided new measurements of the weather on Venus, proof of lightning on the planet, and signs of a formerly unknown hot spot near its south pole.
- Animals
Spider blood fluoresces
Among spiders, fluorescence under ultraviolet light seems to be a widespread trait.
-
All in the Family
Contrary to popular belief, species of salamanders, birds, beetles and fish prefer to mate with close kin.
- Health & Medicine
Calming Factor: DNA vaccine for MS passes initial test
A DNA vaccine against multiple sclerosis passes a safety trial and shows signs of suppressing immune-directed nerve damage.
- Humans
Letters from the August 18, 2007, issue of Science News
Exhaustive analysis I would debate the “1,000 watts or more” value attributed to typical adults during strenuous exercise (“Powering the Revolution: Tiny gadgets pick up energy for free,” SN: 6/2/07, p. 344). Hiking up steep slopes, I rarely exceed 250 W myself, and typical hikers are going much slower. The 1,000-watt figure can only apply […]
- Health & Medicine
Insects (the original white meat)
Dining on insects, usually more by choice than necessity, occurs in at least 100 countries — and may be better than chicken for both people and the environment.
- Humans
From the September 4, 1937, issue
Growling grizzlies star at Yellowstone, radioactive dating puts Earth's age at less than 3 billion years, and a suggestion that overanxious parents can turn their children into stutterers.
- Health & Medicine
New agent to spy clogged arteries
To improve the detection of harmful arterial plaques, researchers have modeled a nanoparticle on a natural material: good cholesterol.
- Tech
Virtual Worlds, Real Science
Epidemiologists and social scientists are tapping into virtual online worlds inhabited by millions to collect data with real-world uses.
- Environment
Down with Carbon
Scientists are exploring strategies for capturing carbon dioxide and storing it safely away in order to limit the levels of that greenhouse gas in the atmosphere.
-
Weighting for Friends: Obesity spreads in social networks
Obesity spreads as a social contagion through networks of friends and relatives, apparently because associating with overweight people encourages a laxer attitude toward weight gain.
-
Starved for Assistance: Coercion finds a place in the treatment of two eating disorders
Attempts by family, friends, and others to coerce people with serious eating disorders into getting mental-health care provide a valuable jump-start to treatment.
