Uncategorized
- Chemistry
Too-young caterpillars like scent of sex
Larvae respond to mate-attracting pheromones, raising evolutionary questions about what a very grown-up chemical signal could mean to them.
- Humans
Herders, not farmers, built Stonehenge
Farming’s temporary demise in ancient Britain may have spurred the creation of the iconic stone circle.
- Planetary Science
Voyager chasing solar system’s edge
On the 35th anniversary of the spacecraft’s launch, scientists ponder when it will move beyond the sun’s reach.
- Life
Team releases sequel to the human genome
ENCODE reveals the machinery that switches genes on and off.
- Health & Medicine
MRI spots silent heart attacks
Scanning elderly population finds many people with telltale cardiac damage that was not diagnosed.
- Earth
Earth & Environment
Soot’s contributions to global warming may be overestimated, and unusual source of oceans’ methane discovered.
- Health & Medicine
Military combat marks the brain
Regions involved in memory and attention changed after soldiers' deployment, though most eventually returned to their pre-combat state.
- Space
Another potentially habitable world emerges
The newfound planet orbits a common type of dwarf star, suggesting even more may be out there.
- Chemistry
Big jobs go to loyal proteins
Cells offload much of their nonessential work on enzymes that juggle a number of tasks.
- Humans
DNA unveils enigmatic Denisovans
Technical advances amplify the genetic record of a Stone Age humanlike population, ancestors of modern Melanesians.
- Space
Stars’ missing elements could signal lurking small planets
The sun's chemistry suggests some good other places to hunt for rocky orbs.
- Health & Medicine
Low-cal longevity questioned
Limited food intake in rhesus monkeys fails to extend the animals’ survival, in a departure from earlier reports.
