All Stories
- Life
Nanoparticles: size and charge matter
Nanoparticles can be designed for targeted delivery of drugs or genes into the body. New work reveals details of how blood proteins respond to these particles.
- Health & Medicine
This is the brain on age
The activity of genes in men's brains begins to change sooner than it does in women's brains, a new study shows.
- Humans
Stone Age seafood fans
Excavations in two Gibraltar caves suggest that Neandertals, like modern humans, regularly visited the Mediterranean shore to complement a land-based diet with seafood
- Earth
Continental clash cooled the climate
The collision between India and Asia set off events that caused long-term cooling in Earth’s climate, new research suggests.
- Health & Medicine
Lo-Cal bones hold up
One study of many recent investigations of how calorie restriction affects people shows that bone density does not necessarily suffer when a person loses weight quickly.
- Climate
(Political) party animals
Featured blog: When it comes to attitudes about climate change, the chasm between Democrats and Republicans is wide. Political-polling analysts speculate that a McCain win in November might do more than an Obama victory to win over the minds of climate-change skeptics.
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- Math
Largest known prime number found
The Great Internet Mersenne Prime Search, a cooperative computing project, helps find a prime that has nearly 13 million digits.
- Life
FDA releases guidelines for genetically modified animals
Draft rules lay out policies for approving altered animals, including those used for food.
- Physics
Apollo or Manhattan Project: Which Paradigm Fits Energy Better?
A new petition developed to lobby the presidential candidates argues that increased federal investments in basic energy research are essential.
- Chemistry
A better fate for plastic bottles
Using microbes to convert PET into a high-value plastic could encourage more recycling.
- Planetary Science
Racing against the Martian winter
With solid findings under its belt and the Martian summer waning, the Phoenix Mars lander perseveres in its study of the soil and sky of the planet’s arctic plain.
