News
- Anthropology
Fossil skull points to single root for human evolution
New find suggests that humankind’s origins trace to an ancient species that spread from Africa to Asia.
- Health & Medicine
Hopes raised for Ebola treatment
Most monkeys given dual therapy survive infection with lethal virus.
- Animals
Lurking males lead to hard-to-fertilize mouse eggs
Mixed-sex society raises resistance to sperm in what may be a long-running arms race between the sexes over fertilization.
- Physics
New limit placed on physics constant
An analysis of how much the fine structure constant varies with the density of matter may help scientists determine whether the parameter changes with time.
- Life
Flashy drug spotlights infection
Doctors may be able to watch for invading microbes with a fluorescent antibiotic.
- Life
Broccoli compound protects rats from lethal radiation
Treatment shields healthy cells from gamma ray attack but lets tumors die.
- Health & Medicine
Electrodes dupe brain into feeling touch
Stimulating the right neuron at the right time gave monkeys the sensation of contact.
- Anthropology
Ancient farmers, foragers kept genes to themselves
Ancient DNA and diet clues suggest how farmers and hunter-gathers contributed to modern Europeans’ genetic profiles.
- Chemistry
Simulating reactions in cyberspace earns Nobel Prize in chemistry
Computer models that meld quantum and classical calculations have earned three scientists the 2013 Nobel Prize in chemistry.
- Health & Medicine
Norovirus vaccine shows early progress
Individuals immunized against Norwalk virus and another norovirus experienced less vomiting and diarrhea than those who didn't receive shots.
- Physics
Proton-boron nuclear fusion returns to spotlight
A technique can fuse nuclei without producing harmful neutrons, but it is far from being power plant–ready.
- Science & Society
2013 Nobels decades in the making
Prizes show that discovery takes inspiration plus perspiration.
