Uncategorized
- Earth
Effects of the weather, underground
Sudden changes in air temperature in the stratosphere that can ultimately steer major storm systems can also influence the number of subatomic particles slamming into detectors located hundreds of meters below ground, a new study reveals.
By Sid Perkins - Anthropology
Peking Man fossils show their age
Scientists have pushed back the age of Peking Man, raising questions about whether Homo erectus trekked to eastern Asia in two separate migrations.
By Bruce Bower - Humans
Science’s next generation wins accolades
Star students receive more than $530,000 in scholarships and prizes in the Intel Science Talent Search.
- Animals
Public tantrums defeat monkey moms too
Rhesus macaque moms are more likely to give in to screaming babies when bystanders are watching and reacting
By Susan Milius - Health & Medicine
Migraines during pregnancy may be linked to stroke
Pregnant women who have migraines also face a heightened risk of stroke and other vascular diseases, a new study finds.
By Nathan Seppa - Health & Medicine
Blood type could matter in pancreatic cancer
People with type O blood are less likely to develop pancreatic cancer than are people with type B blood, a study finds.
By Nathan Seppa - Life
Aphids support symbionts with borrowed DNA
Aphids borrowed at least two genes from bacterial buddies, and those genes now support another bacterium that lives in the insects.
- Physics
Single top quark detected
Scientists observe elusive single top quark, usually found in pairs.
- Health & Medicine
Early intellectual gap found for kids of older fathers
A reanalysis of data from more than 33,000 U.S. children finds that those with older fathers fared somewhat poorer on intelligence tests than those with younger fathers, regardless of mothers’ ages.
By Bruce Bower - Health & Medicine
President reverses federal ban on stem cell funding
President Barack Obama signed an executive order lifting a ban on federal funding for research that uses embryonic stem cells.
By Janet Raloff - Space
Frozen cosmic fingerprints
Researchers claim to find evidence of 11th century supernovas and the solar cycle in an ice core.
By Ron Cowen - Math
The four color problem gets a sharp new hue
Mathematicians find new answers to the still puzzling theorem that four colors suffice to color any map.