News
- Health & Medicine
New brain cell growth restores function
Regeneration in the hippocampus helps repair learning and memory after injury, mouse experiments suggest.
- Humans
Climate meddling dates back 8,000 years
Cutting down trees put lots of carbon into the atmosphere long before the industrial revolution began.
- Life
DNA flaws can stack up as cancer grows
Acute myeloid leukemia progresses by accumulating various mutations, according to an analysis of one man’s disease over time.
- Chemistry
Japan nuke accident seen from Seattle
Radioactive particles retrieved in the Pacific Northwest offer clues to events inside the crippled Fukushima Daiichi plant.
By Devin Powell - Earth
Major earthquakes not linked
Global seismic risks don’t rise following big events, scientists say.
- Space
Planets take shape in embryonic gas clouds
A new theory of planetary formation may explain variety seen in extrasolar searches.
By Ron Cowen - Humans
Noise is what ails beaked whales
Large-scale experiments reveal a sensitivity to sonar, apparently at lower levels than other species.
- Health & Medicine
Obesity messes with the brain
Excess weight may compromise memory and concentration, possibly by spurring inflammation that damages white matter.
By Janet Raloff - Chemistry
Silicene: It could be the new graphene
Single-layer sheets of silicon might have electronic applications.
By Devin Powell - Earth
Global gale warning
Over the world’s oceans, the strongest winds may be getting more powerful, a new study shows.
- Humans
Go east, ancient tool makers
New finds put African hand ax makers in India as early as 1.5 million years ago.
By Bruce Bower - Humans
A new glimpse at the earliest Americans
Along a stream in central Texas, archaeologists have found a campsite occupied at the tail end of the Ice Age.