All Stories
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PhysicsThe glue that binds a proton may be key to its identity
Gluons do more than hold protons together. They may also help define the proton’s identity through a quantum property called baryon number.
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SpaceStars’ plasma spurts may be blocked by magnetic fields
The sun frequently flings plasma into space, but sightings of such eruptions on other stars are rare. Magnetic fields could explain why.
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PaleontologyThese mammal ancestors birthed live young far earlier than thought
Growth rings on a fossil bone suggest at least one mammal ancestor gave birth to live young rather than laying eggs 236 million years ago.
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Health & MedicineEstrogen therapy is linked to fewer signs of Alzheimer’s in the brain
Estrogen-only menopause therapy in older women was linked to less Alzheimer’s brain pathology at autopsy but may not prevent the disease.
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SpaceA vest tested on the Artemis I mission blocked some radiation exposure
A 26-kilogram plastic garment, flown on a model human torso on the uncrewed Artemis I mission, may one day protect astronauts from solar storms.
By Skyler Ware -
AnimalsToo many choices complicate female frogs’ sex lives
In the lab, female frogs were less likely to choose preferred males as mating calls increased, potentially giving other males a better shot.
By Freda Kreier -
Health & MedicineNewborn screening for cancer risk could save lives. Should it be done?
Genetic screening that identifies cancer-linked mutations in newborns could give doctors a head start on treatment, but it comes with risks.
By Meghan Rosen -
Science & SocietyBamboo toilet paper intrigued me. Reality turned out to be messy
What makes a greener wipe? Researchers have more to say about bamboo's ecological risks, given limited carbon footprint data.
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SpaceThe largest known galaxy is wider than 17 Milky Ways
Scientists have identified the edge of galaxy IC 1101 and crowned it with the title of largest known galaxy.
By Nikk Ogasa -
AnimalsSad or afraid? Dogs may be able to read your face
A new brain-imaging study suggests that dogs may be able to distinguish between certain negative human emotions just by looking at people’s faces.
By Meghan Rosen -
Science & SocietyScience backs calls for limiting screens in schools
School device use links with lower test scores and distractions abound. But reversing the entrenched pandemic pivot to screens will be hard.
By Sujata Gupta -
ArchaeologyAncient Greek rings may have been forged with iron from meteorites
Chemical analysis of Bronze Age iron objects indicate that Greek nobles may have indulged in signet rings made with precious metal from the sky.
By Tom Metcalfe