News
- Earth
Arctic ozone loss in 2011 unprecedented
Report describes a ‘hole’ comparable to conditions observed over Antarctica during the mid-1980s.
- Life
2011 medicine Nobel goes to immunology researchers
The prize in physiology or medicine recognizes scientists for their work on the body's innate and adaptive defenses against invading pathogens.
- Space
Longer cosmic ruler based on black holes
A new method promises to improve the precision of extreme astronomical distance measurements.
- Psychology
Teen daters pal up to the bottle
Buddies of boyfriends and girlfriends push teens toward or away from booze.
- Physics
Sweet beams: Lasers to measure blood sugar
Cutting-edge use of light might someday prove useful in gauging diabetics’ glucose levels.
- Space
Messenger from Mercury
NASA orbiter returns images of odd landforms on the solar system's innermost planet.
- Health & Medicine
The mind’s eye revealed
A new technology uses brain scans to see what a person is watching.
- Life
Food makes male flies frisky
Courtship behavior in a classic lab insect is driven by the aroma of dinner.
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Trilayer graphene exhibits quantum effect
Three could be the magic number for making spintronic devices from thin carbon sheets.
- Chemistry
Miracle fruit secret revealed
Bizarre berry works by sensitizing the tongue's sweet sensors to acidic flavors.
- Health & Medicine
B12 shortage linked to cognitive problems
Subtle B12 deficiency plagues a surprising share of the elderly and may harm the brain, studies suggest.
- Health & Medicine
Nose divides sweet from foul
The way scent-detection machinery is laid out suggests that people are born with some innate olfactory preferences.
