News
- Health & Medicine
Hallucinated voices’ attitudes vary with culture
Culture puts good or bad spin on voices heard by people with schizophrenia.
- Planetary Science
Rosetta casts doubt on comets as Earth’s water providers
Water in comet 67P’s thin, hazy atmosphere doesn’t chemically match Earth’s oceans, suggesting that asteroids, not comets, brought water to the planet.
- Genetics
New type of stem cells, fuzzy and flexible
A new way to make stem cells produces fuzzy cells that appear as flexible as other types of stem cells, but are easier to grow in the lab and avoid ethical issues.
- Neuroscience
Molecule impairs brain cells that fail in Alzheimer’s
In mice, blocking a molecule on immune cells allowed them to mop up the type of protein buildup seen in the brains of people with Alzheimer’s.
- Health & Medicine
Cells in groups may promote cancer’s spread
Cellular gangs, not individuals, form distant tumors from breast malignancies, a new study finds.
- Chemistry
Early asteroid impacts may have aided life’s origin
RNA ingredients found in laser-induced simulation of explosions.
- Earth
Mineralogy’s link to ecology makes an Earth twin unlikely
Earth’s unique blend of minerals emerged with the evolution of life, making it extremely unlikely that another planet has Earth’s exact mineral composition.
- Climate
California drought worst in at least 1,200 years
The current California drought is the most severe in 1,200 years, according to historical information gleaned from tree rings.
- Life
Electric eels remote-control nervous systems of prey
Electric eels’ high-voltage zaps turn a prey fish against itself, making it freeze in place or betray a hiding place.
- Planetary Science
Ancient moon’s mega magnetic field explained
Apollo-era moon rocks reveal ancient lunar magnetic field was at least as powerful as the one surrounding modern Earth.
- Materials Science
Carbon supplants silicon in electronic medical sensors
Prototypes of electronic medical devices constructed from organic materials are noninvasive yet offer similar performance as silicon-based health sensors.
- Archaeology
Human ancestors engraved abstract patterns
Indonesian Homo erectus carved zigzags on a shell at least 430,000 years ago.
