News
- Planetary Science
Rocks on the ice
Pristine fragments of a meteorite that fell January 18 in the frozen Yukon and that remained frozen until they were delivered to a NASA laboratory may reveal much about the earliest days of the solar system.
- Anthropology
Lucy on the ground with knuckles
Some early human ancestors appear to have walked on all fours using their knuckles, much as chimpanzees do.
- Anthropology
Goat busters track domestication
People began to manage herds of wild goats at least 10,000 years ago in western Iran.
- Tech
Microdevice weds electronics, light fibers
By altering the chemical structures of dyelike molecules called chromophores, researchers have created tiny, low-voltage devices for converting electronic signals into light waves.
