News
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AstronomyBy the light of a starry eruption
Astronomers calculating the brightness of a supernova explosion witnessed in the 11th century estimate that it was likely the most brilliant stellar event in recorded history.
By Ron Cowen -
Health & MedicineProtein protects rat brains from strokes
Neuroglobin, a protein related to hemoglobin, may protect the brain during strokes.
By John Travis -
EarthComposted sewage captures dirt’s lead
Lead-contaminated soil in urban parks, gardens, and schoolyards could be made safer by adding composted organic waste.
By Ben Harder -
Uncertainty fires up some neurons
In monkeys, a small set of brain cells that transmit the chemical messenger dopamine to various neural destinations works as an uncertainty meter.