News
- Earth
Climate fix could deplete polar ozone
Scientists seeking to cool Earth’s climate by injecting sulfuric acid droplets high in the atmosphere might trim rising temperatures but could also destroy much of the ozone in polar regions, a new study suggests.
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- Health & Medicine
New approach might strike at the core of Alzheimer’s disease
By finding a way to stick an enzyme-inhibiting molecule to the membrane of a cell, scientists may have devised the framework for an Alzheimer’s drug.
- Humans
Incan skull surgery
Incan healers became highly adept at skull surgery techniques that developed over thousands of years in ancient Peru.
- Ecosystems
Eight-legged bags of poison
Birds eating arachnids get high dose of toxic metal as mercury climbs up the food chain.
- Space
Searching for superEarths
Astronomers are exploring a new family of planets beyond the solar system.
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- Ecosystems
Beetle attack overturns forest carbon regime
Ravaged Canadian region switches from carbon sink to net carbon source.
- Space
Black hole once glowed brightly
More than 26,000 years ago, the Milky Way's central black hole suddenly but fleetingly increases its X-ray output.
- Agriculture
Study decodes papaya genome
Scientists have added another plant to the genome-sequencing roster: the tropical fruit tree papaya.
- Earth
Melt pond falls through ice in Greenland
A lake of meltwater atop Greenland's ice sheet wedged open a crack in the underlying ice that drained the lake dry.
- Health & Medicine
Old drug offers new tricks for fighting cancer
A drug once envisioned as a treatment for cancer might instead prevent the occurrence of colorectal cancer.
