News
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Role Change: Mast cells show an anti-inflammatory side
Cells that cause inflammation in allergic skin reactions to poison ivy also produce a protein that subdues the reaction a few days later.
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Live Wires: Axons can influence nerve impulses
Axons are not simply passive carriers of electrical signals in the brain, but influence how neurons fire.
- Astronomy
Killer Collision: Dino demise traces to asteroid-family breakup
The asteroid that wiped out the dinosaurs 65 million years ago was a wayward fragment from a violent collision in the asteroid belt.
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The Venter Decryption: Biologist decodes his own genome
For the first time, one man's genome, including both sets of chromosomes, has been decoded.
