News
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SpaceA rare glimpse of a star before it went supernova defies expectations
A hydrogen-free supernova in a nearby galaxy appears to have come from an unusual source.
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Health & MedicineHow a small city in Brazil may reveal how fast vaccines can curb COVID-19
Almost all adults in Serrana, Brazil, got COVID-19 shots. That may help answer questions about how well vaccines will work to end the pandemic.
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Health & MedicineHere’s what breakthrough infections reveal about COVID-19 vaccines
Studies analyzing vaccinated people in the real world show that COVID-19 vaccines are extremely effective, but experts are keeping an eye on variants.
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Health & MedicineMeet three moderators fighting disinformation on Reddit’s largest coronavirus forum
Science News spoke with volunteers about what it takes to correct misinformation online during a pandemic.
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Health & MedicineThe surge in U.S. coronavirus cases shows a shift in who’s getting sick
Younger, unvaccinated people are a rising share of COVID-19 cases, raising concerns anew that lack of vaccine access may hit minority populations hard.
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AgricultureNanoscale nutrients can protect plants from fungal diseases
Applied to the shoots, nutrients served in tiny metallic packages are absorbed more efficiently, strengthening plants’ defenses against fungal attack.
By Shi En Kim -
Planetary ScienceNASA’s Ingenuity helicopter’s mission with Perseverance has been extended
NASA’s Ingenuity helicopter has passed all its tests and is ready to support the Perseverance rover in looking for ancient Martian life.
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AnthropologyLittle Foot’s shoulders hint at how a human-chimp common ancestor climbed
The shape of the 3.67-million-year-old hominid’s shoulder blades suggests it had a gorilla-like ability to climb trees.
By Bruce Bower -
EarthLightning may be an important source of air-cleaning chemicals
Airplane observations show that thunderstorms can directly generate vast quantities of atmosphere-cleansing chemicals called oxidants.
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EcosystemsWild donkeys and horses engineer water holes that help other species
Dozens of animals and even some plants in the American Southwest take advantage of water-filled holes dug by these nonnative equids.
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AnimalsMantis shrimp start practicing their punches at just 9 days old
The fastest punches in the animal kingdom probably belong to mantis shrimp, who begin unleashing these attacks just over a week after hatching.
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PhysicsA clock’s accuracy may be tied to the entropy it creates
A clock made from a thin, wiggling membrane releases more entropy, or disorder, as it becomes more accurate.