6,882 results
6,882 results for: Bears
-
Highlights from the meeting of the American Physical Society
A round-up of Science News' complete coverage of the American Physical Society's April meeting held February 13–16, 2010 in Washington, D.C.
- Earth
Bacteria show new route to making oxygen
New discovery adds to the few known biological pathways for making and metabolically using the gas.
- Earth
Spotting danger from on high
Airborne sensors can identify mineral outcrops and soil that may contain natural asbestos.
- Earth
Earliest birds didn’t make a flap
The feathers of Archaeopteryx and Confuciusornis probably were not strong enough to support sustained flight.
-
Confronting a third crisis in U.S. science education
Is science education broken in the United States? And if so, how should the country fix it? A working group of the President’s Council of Advisors on Science and Technology (PCAST) has been investigating these long-standing questions and is expected to issue a report on its policy recommendations this month. Science News Contributing Editor Alexandra […]
- Planetary Science
Warmth in the dark age
Lower reflectivity kept Earth from freezing under a fainter young sun.
- Chemistry
A new source of dioxins: Clean hands
Manufacturers have been adding the germ fighter triclosan to soaps, hand washes, and a range of other products for years. But here’s a dirty little secret: Once it washes down the drain, that triclosan can spawn dioxins.
- Chemistry
Pit vipers’ night vision explained
A new study finds the protein responsible for snakes’ sense of heat.
- Materials Science
Breakup doesn’t keep hydrogel down
Scientists create a new material that is strong, soft and self-healing.
- Anthropology
Inca cemetery holds brutal glimpses of Spanish violence
Bones from a 500-year-old cemetery have yielded the first direct evidence of Inca death at Spaniards’ hands.
- Space
Sun may not be a ‘Goldilocks’ star
The stars that are just right to support life-bearing planets might be dimmer and longer-lived than the sun.
- Health & Medicine
2009 Science News of the Year: Nutrition
Natural vanilla extract comes from pods (shown), but most vanillin is synthesized in the lab. Credit: De-Kay/istockphoto That yeast smells good Yeast has long been pressed into service for making beer and bread. Now the fungus has been tapped for a loftier flavor: vanillin, vanilla’s dominant compound (SN: 5/23/09, p. 9). Natural vanilla comes from […]
