Uncategorized
- Chemistry
Guards of the blood-brain barrier identified
Specialized cells called pericytes are crucial to protecting the central nervous system, two new studies demonstrate.
- Life
More than a chicken, fewer than a grape
A decade after the completion of the Human Genome Project, the exact number of human genes remains elusive.
- Space
CSI: Asteroid Belt
Astronomers hunt clues in the rubble of a recent collision between two space rocks.
- Life
New species a little nipper
A mongoose-like creature from Madagascar is the first new carnivore to be discovered in more than two decades.
- Health & Medicine
Implants help heroin addicts kick habit
Installing a slow-release drug under the skin enables some abusers of illicit and prescription drugs to get through withdrawal, a new study shows.
- Planetary Science
A comet’s tail
Already under observation by astronomers, Hartley 2 will be visible in dark skies when it passes Earth on October 20.
- Life
Pterosaurs might have soared 10,000 miles nonstop
Flight analysis suggests ancient reptiles were record setters.
- Health & Medicine
Mice robbed of darkness fatten up
Time of day can affect calories' impact, a study shows.
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- Health & Medicine
How being deaf can enhance sight
Hearing-specialized brain regions can adapt to processing visual input, cat experiments show.
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The Science of Slumber
Special issue on sleep.
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The Why of Sleep
Brain studies may reveal the purpose of a behavior both basic and mystifying.
