News in Brief
- Paleontology
How arthropods got their legs
New fossils reveal how arthropods evolved branching limbs.
- Life
Chickens to blame for spread of latest deadly bird flu
Chickens are responsible for the second wave of H7N9 bird flu in China.
- Health & Medicine
Teens have higher anaphylaxis risk than younger kids
Adolescents may be more apt to experience an extreme allergic reaction than younger children, researchers report.
- Life
Experimental herpes vaccine works in mice
An experimental herpes vaccine works in animal tests by using an approach starkly different from that used in previous vaccine development.
- Paleontology
Possible ancestor of sponges found
An exquisitely preserved 600-million-year-old fossil from China has cell types and a shape resembling sponges, thought to be among the first multicellular animals to evolve.
- Astronomy
Remote star clusters discovered on edge of Milky Way
Two newly discovered star clusters are the first ever seen at the remote edges of the Milky Way.
- Health & Medicine
Dose of extra oxygen revs up cancer-fighting immune cells
Extra oxygen helps immune cells shrink tumors in cancer-ridden mice.
- Earth
Volcanic lightning forges tiny glass balls from airborne ash
The lightning that crackles through volcanic plumes can melt ash into tiny glass beads.
- Astronomy
Hundreds of galaxies seen in a new 3-D view of the universe
A new instrument lets astronomers measure the distances to hundreds of galaxies at once, looking back across the age of the universe.
- Health & Medicine
Secondhand smoke exposure in womb linked to eczema in childhood
Secondhand smoke exposure in the womb may heighten risk of eczema and other dermatitis in children, a study finds.
- Chemistry
Iron nanoparticles snatch uranium
With a dash of iron nanoparticles and a magnet, researchers can quickly harvest radioactive fuel.
- Humans
Breast-feeding newborns might limit their allergy to pets later
Breast-feeding newborns might limit their allergy to pets later by inducing a protective mix of gut microbes in the baby.
