News
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Health & MedicineAdd penis bacteria to the list of HIV risk factors
Certain bacteria found on the penis raise the risk of HIV infection, a new study finds.
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AstronomyFewer big rogue planets roam the galaxy, recount shows
Jupiter-mass planets without parent solar systems are less common than astronomers thought, a new study suggests.
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ChemistryRadioactive substances leave electron ‘fingerprints’ behind
A new method of nuclear forensics could make it harder to handle radioactive material in secret.
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GeneticsResistance to CRISPR gene drives may arise easily
New tools for pest and disease control could become useless without improvements.
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PhysicsMajorana fermion detected in a quantum layer cake
Scientists found evidence of a particle that is its own antiparticle.
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Health & MedicineCows produce powerful HIV antibodies
For the first time in any animal, researchers elicit broadly neutralizing antibodies against HIV. Cows’ antibodies could help with drug development.
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GeneticsThese genes may be why dogs are so friendly
Dog domestication may be the result of just a few genetic changes, including ones that made canines more interested in interacting with people.
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ArchaeologyHumans first settled in Australia as early as 65,000 years ago
Australia may have said “G’day” to humankind thousands of years earlier than previously believed.
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Health & MedicineCommon drugs help reverse signs of fetal alcohol syndrome in rats
A thyroid hormone and a blood sugar drug affect levels of a hormone needed for brain development, study in rats shows.
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GeneticsDog domestication happened just once, ancient DNA study suggests
DNA of ancient canines counters idea that dogs were domesticated twice, in Europe and Asia.
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PhysicsScientists peek inside the mind of Maxwell’s demon
Scientists probe information retained by Maxwell’s demon.
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Planetary ScienceGiant mud balls roamed the early solar system
The first asteroids may have been great balls of mud, which would solve some puzzling features of meteorites.