News
- Climate
Heat waves stunt grassland growth
An abnormally hot year can significantly suppress growth in grasslands, a stifling effect that lingers well into the next year even if temperatures return to normal. It can also hinder how well the grasslands absorb carbon dioxide from the atmosphere.
- Humans
The presidential candidates on science
The Science Debate 2008 team sent science and technology questions to Sens. John McCain and Barack Obama. Find out how they answered.
- Life
Fastest spores in the West (or anywhere)
SEE THE VIDEO: Researchers film a fungus catapulting its spores with an acceleration greater than what astronauts feel.
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Immune cell plays good cop, bad cop
Immune cells called macrophages aid neuron regeneration in some parts of the nervous system, but hinder regeneration in the brain and spinal cord.
