Uncategorized
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AstronomyGalaxy seed found from 3 billion years after Big Bang
A still-growing core of a galaxy in the early universe may help astronomers understand how massive elliptical galaxies get their start.
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AnimalsPassenger pigeon population had booms and busts
DNA says the birds recovered from hard times — until people came along.
By Susan Milius -
LifeAutoimmune diseases stopped in mice
Reprogramming immune cells may offer a way to treat autoimmune diseases without harming the body’s ability to fight infections.
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HumansSkulls reveal Neandertal’s hodge-podge genealogy
A new analysis of ancient hominid skulls reveals a patchy anatomical start of the Neandertal lineage.
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Quantum PhysicsCommercial quantum computer fails to impress in new test
Fifteen million dollar D-Wave machine runs no faster than traditional computer in head-to-head challenge.
By Andrew Grant -
PsychologyJust four questions can identify which ER patients need prompt care
A simple decision tree may find serious ailments in ER patients’ fuzzy complaints.
By Bruce Bower -
NeuroscienceSunbathing may boost endorphins in the body and brain
UV light makes mice churn out a molecule that is a cousin of morphine and heroin, a finding that may explain why some people seek out sunshine.
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EnvironmentTriclosan may spoil wastewater treatment
Common antimicrobial could make microbes more drug resistant and less efficient at breaking down sewage sludge in municipal treatment plants.
By Beth Mole -
PhysicsSupercooled liquid water hits record low
Weird supercooled water well below its freezing point viewed with ultrafast laser.
By Andrew Grant -
Health & MedicineSimple blood test detects heart transplant rejection
Heart transplant recipients whose bodies are starting to reject the new organ might carry genetic warning signs.
By Nathan Seppa -
GeneticsGene variant tied to diabetes in Greenlanders
Greenlanders who carry two copies of a newly discovered gene variant have upwards of 10 times the chance of developing type 2 diabetes.
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NeuroscienceStress hormone kicks brain cells into gear
Norepinephrine, a stress hormone, wakes up cells called astroglia, possibly shifting brain into vigilant state.