News
- Genetics
Ebola genome clarifies origins of West African outbreak
Genetic analyses suggest that a single infected person sparked the ongoing Ebola epidemic in West Africa.
- Anthropology
Siberians came to North American Arctic in two waves
Siberian ancestors of the modern-day Inuit replaced a 4,000-year-old North American Arctic culture, a DNA study reveals.
- Health & Medicine
To grow new knee cartilage, look to the nose
Cartilage-making cells from the nose grew into patches that successfully replaced damaged or missing cartilage in the knees of goats and of humans.
- Astronomy
Wake of nearby supernova hints at explosion’s origins
Gamma rays from radioactive decay of cobalt formed in a nearby supernova reveal unprecedented details of the explosion’s aftermath.
- Quantum Physics
Blind quantum camera snaps photos of Schrödinger’s cat
Quantum weirdness lets physicists snap photo without collecting incoming light from cardboard cat subject.
- Neuroscience
Laser light rewrites memories in mice
Mouse experiment demonstrates that good memories can be transformed into bad ones, and vice versa.
- Chemistry
Liquid salts break through armored bacteria on skin
Compounds called ionic liquids can penetrate bacterial biofilms on skin to deliver antibiotics to potentially life-threatening infections.
- Climate
Multiple oceans may help stall global warming
The Atlantic and Southern oceans, not the Pacific, may be largely to blame for the recent pause in rising global temperatures.
- Ecosystems
Lake under Antarctic ice bursts with life
Abundant microbes thrive in subglacial lakes deep under the Antarctic ice sheet.
- Health & Medicine
Experimental drugs and vaccines poised to take on Ebola
The use of experimental drugs and vaccines against Ebola may turn the tide against an outbreak in Africa that has defied efforts to control it.
- Genetics
Long before Columbus, seals brought tuberculosis to South America
Evidence from the skeletons of ancient Peruvians shows that seals may have brought tuberculosis across an ocean from Africa.
- Anthropology
Earlier dates for Neandertal extinction cause a fuss
Revised dates suggest Neandertals coexisted with modern humans for several thousand years in Europe before disappearing 40,000 years ago.
