6,775 results
6,775 results for: Bears
- Space
Largest known planetary ring discovered
Researchers have found a dusty band that circles Saturn and has a radius of more than 12 million kilometers.
- Animals
Fruity whiff may inspire new mosquito repellents
Odors from ripening bananas can jam fruit flies’ and mosquitoes’ power to detect carbon dioxide, a new study finds.
- Earth
Atmospheric rollercoaster followed Great Oxidation Event
Analyses of chromium isotopes in banded iron formations suggest oxygen levels fell for a period after the Great Oxidation Event.
- Anthropology
Contested signs of mass cannibalism
A new study yields controversial evidence of mass cannibalism in central Europe 7,000 years ago.
- Climate
U.N effectively locks out reporters, others in Copenhagen
For a year, the United Nations and national leaders have stumped around the world, championing the importance of the Copenhagen climate negotiations. It made this international conclave a must-see destination. And the UN responded by granting accreditation to huge numbers of government officials, UN officials, public-interest groups and journalists. In fact, to almost twice as many individuals as the conference center could hold. And that led to pandemonium today as the UN confronted literally thousands of people waiting to pick up their security badges – people this organization couldn’t or wouldn’t accommodate.
- Chemistry
2009 Science News of the Year: Molecules
Tangles of collagen IV chains link at globules via sulfur-nitrogen bonding (illustrated above). Credit: Courtesy of Science/AAAS New bond in the basementBasements house hidden treasures — including a chemical bond never before seen in living things. Scientists have discovered that collagen fibers in the basement membrane — a tough, structural layer of cells that surrounds […]
- Computing
Minifridge makes quantum computers last
A new study shows that if ions are kept cool, then the information they hold can be repeatedly manipulated.
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Book Review: The Day We Found the Universe by Marcia Bartusiak
Review by Elizabeth Quill.
- Health & Medicine
Vaccine could protect against virus that causes birth defects
An experimental vaccine against cytomegalovirus has the ability to prevent infection half the time it’s administered, suggesting the vaccine might prevent birth defects the virus can cause.
- Earth
Erosion, on the down low
Experiments show how microscopic fungi attack minerals to begin the erosion process.
- Anthropology
Stone Age twining unraveled
Plant fibers excavated at a cave in western Asia suggest that people there made twine more than 30,000 years ago.
- Life
Death-grip fungus made me do it
Infection may be driving ants to set their jaws in low-hanging leaves before they die.
