News
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NeuroscienceWhy traumatic brain injuries raise the risk of a second, worse hit
Recent hits to Miami Dolphins quarterback Tua Tagovailoa have reignited discussions of brain safety for professional football players. Brain experts weigh in.
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Planetary ScienceMars’ buried ‘lake’ might just be layers of ice and rock
Evidence grows that possible detections of liquid water buried near Mars’ south pole might not hold water.
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LifeA metal ion bath may make fibers stronger than spider silk
The work is the latest in a decades-long quest to create artificial fibers as strong, lightweight and biodegradable as spider silk.
By Meghan Rosen -
MicrobesHow dormant bacteria spores sense when it’s time to come back to life
Bacterial cells shut down and become spores to survive harsh environments.