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EarthFaults can reseal months after quakes
Measurements in southern China find quick healing of fractured rock.
By Erin Wayman -
Science & SocietyMath targets cities’ essence
New formula relates city size to infrastructure, productivity.
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AnimalsCicadas’ odd life cycle poses evolutionary conundrums
Scientists are getting an idea about the odd family tree of periodical cicadas, how the insects synchronize their life cycles and why they breed side-by-side with others unsuitable for mating.
By Susan Milius -
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TechTwisted light transmits more data
Spiral beams allow multiple information streams in one cable.
By Andrew Grant -
LifeGenes in wheat relatives help stave off stem rust
Wild and obscure species provide resistance to deadly fungus.
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Planetary ScienceVoyager 1 on fast track toward interstellar space
More than 35 years after launch, the probe finally nears the solar system's edge.
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Health & MedicineExperimental type 1 diabetes treatment shows promise
Findings in a small group of patients hint that a DNA-based therapy might work, but the effects fade after treatment stops.
By Nathan Seppa -
Health & MedicineNo link found between vaccines and nerve-damaging condition
Recently immunized people are not at an increased risk of developing Guillain-Barre syndrome, a nerve-damaging condition.
By Nathan Seppa -
LifeAncient horse’s DNA fills in picture of equine evolution
An entire genome compiled from a 700,000-year-old bone yields new information about equine history.
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AnimalsLemurs’ group size predicts social intelligence
Primates that live with many others know not to steal food when someone is watching.