News
- Health & Medicine
Smoking laws limit heart attacks
A county that banned smoking in bars, restaurants and other workplaces saw a one-third decrease, a new study finds.
- Earth
Low central pressure among Hurricane Sandy’s unusual features
After slamming the Caribbean, storm approaches landfall in mid-Atlantic states.
- Earth
Ozone hole at smallest size in decades
Warm Antarctic temperatures help preserve UV-protecting layer.
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- Health & Medicine
Same neurons at work in sleep and under anesthesia
Drugs boost activity in nerve cells that usually induce a slumber.
- Astronomy
Violent birth proposed for Saturn’s moon mishmash
A simulation suggests that giant collisions created Titan and the planet’s many smaller satellites.
- Humans
Shoulder fossil may put Lucy’s kind up a tree
Fossils of an ancient child suggest the more than 3-million-year-old hominid mixed climbing with walking.
- Health & Medicine
Aspirin has selective benefit in colorectal cancer
Patients with a common gene mutation survive longer, which might enable doctors to predict who would get results from the drug.
- Genetics
Cloning-like method targets mitochondrial diseases
Providing healthy ‘power plants’ in donor egg cells appears feasible in humans, a new study finds.
- Climate
Gulf Stream might be releasing seafloor methane
Greenhouse gas may be flowing into ocean waters off the U.S. east coast.
- Paleontology
Earliest primate had tree-climber ankles
A creature known only from fossils of its teeth gets some more parts.
- Chemistry
Human blood types have deep evolutionary roots
The ABO system may date back 20 million years or more, a genetic analysis suggests.
