News
- Life
Neandertal genome yields evidence of interbreeding with humans
After years of looking, geneticists are shocked to find that 1 percent to 4 percent of DNA in people from Europe and Asia is inherited from Neandertals.
- Chemistry
Decon Green can clean up the most toxic messes, developers claim
A new decontaminant could be a more benign alternative for cleaning up after chemical and biological accidents.
- Life
Undereducated immune cells get aggressive with HIV
Scientists discover a mechanism that makes some people resistant to infection with the AIDS virus.
- Space
New Hubble pictures suggest Milky Way fell together
A preliminary analysis appears to strike a blow against the prevailing theory of galaxy formation.
- Health & Medicine
U.S. childhood obesity rate continues to rise
Only a few states buck the trend toward greater weight gain in kids age 10 to 17, a new survey shows.
- Earth
Gulf oil spill a slow-motion hurricane
The accident’s timing could determine how badly it damages coastal marshes.
- Health & Medicine
Epigenetic changes show up in people with PTSD
Study finds alterations in genes tied to immune system and brain development, but whether they cause the disorder remains unclear.
- Physics
Making clouds with lasers
Inspired by a classic particle physics experiment, researchers get water droplets to condense by shooting a light beam skyward.
-
- Physics
Reverse engineering a quantum compass
Physicists propose a method that could explain how birds’ magnetic-sensing organs work.
- Animals
Aphids make their own bright colors
The insects’ ancestors adapted fungal DNA for manufacturing vital compounds.
- Space
Measuring the weakest of forces
Precise measurements could be used to map tiny fluctuations in the surface properties of materials.
