News
- Tech
Double bubble comes off in a pinch
By nestling droplets inside larger droplets, scientists have created a new strategy for encapsulating food additives and fragrances.
-
Frozen in Time: Gas puts mice metabolically on ice
Researchers have induced a hibernation-like state in mice by exposing them to low concentrations of hydrogen sulfide.
- Health & Medicine
Fast Start: Sex readily spreads HIV in infection’s first weeks
People with HIV are many times more infectious to their sexual partners in the weeks or months just after they acquire the virus than they are later on, a study in Uganda demonstrates conclusively.
- Ecosystems
Ambush Ants: Beware the moldy patch on that branch
Tiny tropical ants build shaggy platforms on plants and hide underneath them, poised to reach out and capture insects that may be far larger than themselves.
- Astronomy
Distant Dust: Asteroid belt or boiling comet?
A swarm of warm dust surrounding a star 41 light-years from Earth may be a sign of the closest extrasolar analog to the solar system's asteroid belt.
- Physics
Extreme Matter: Mother of all material flows into view
By making an extremely hot and dense state of matter that, surprisingly, is a liquid, physicists say they may have finally created a sample of matter much like the primordial stuff that permeated the newborn universe and gave rise to all other matter.
- Anthropology
These spines were made for walking
A new analysis of fossil backbones indicates that human ancestors living around 3 million years ago were able to walk much as people today do.
- Anthropology
Noses didn’t need cold to evolve
Neandertals evolved big, broad noses not in response to a cold climate, as has often been argued, but in conjunction with the expansion of their upper jaws.
- Health & Medicine
Step up to denser bones
Step aerobics proved better than resistance exercises for building bone density.
- Planetary Science
Comet mission loses some focus
A camera aboard the Deep Impact spacecraft, set to fire a projectile into the icy heart of Comet Tempel-1 on July 4, is slightly out of focus.
- Earth
Balloons, condoms release likely carcinogens
Balloons and condoms that come in contact with body fluids discharge chemicals suspected of being human carcinogens.
- Health & Medicine
Company pulls pain drug from market
The Food and Drug Administration has asked Pfizer to stop selling its prescription pain medication valdecoxib (Bextra).
