Uncategorized
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Health & MedicineRobots may soon actively crawl through your gut
Doctors are working with engineers to develop robotic tools that can crawl through the body to deliver medicine or scout for signs of disease.
By Eric Niiler -
PlanetsFlared! How a planetary ‘neighbor’ may have been fried
Hoping for life on the planet our stellar neighbor Proxima Centauri? Don’t hold your breath. Its star may have sterilized its Earthlike exoplanet.
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BrainExplainer: What are opioids?
Opioid drugs can kill pain, but they can also kill people. Here’s how.
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BrainTeeny tiny hairs on brain cells could have big jobs
Brain cells have tiny antennae called cilia. But no one really seemed to know what they did. Now, scientists have shown they could play a role in obesity.
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AnimalsKiller whale blows a raspberry, says ‘hello’
Orcas can mimic a range of sounds, including human speech — sort of.
By Susan Milius -
BrainScientists Say: Receptor
This molecule is a chemical messenger’s docking station. A receptor serves as a lock for cell activity.
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MathRedrawing political boundaries may alter rates of violent crime
The way politicians draw boundaries for voting districts could affect not only who wins elections, but also where rates of violent crime may rise.
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BrainCool Jobs: Decoding how your brain ‘reads’
For some stroke victims and people with dyslexia, reading is nearly impossible. These researchers are working to understand why.
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OceansMore than half the world’s ocean area is actively fished
Fleets harvest fish from 55 percent of the world’s total ocean area. Just a handful of countries play an outsized role fishing the open ocean, far from coasts.
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PlanetsHere’s why Venus is so unwelcoming
Venus is hard to study. Scientists also find it hard to get money to send spacecraft there. But researchers have ideas about how to tackle both challenges.
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AnimalsTricky turns give prey a chance against lions and cheetahs
A bonanza of running data on wild predators shows that a successful hunt requires more than sprinting.
By Susan Milius -
EarthScientists Say: Inclusion
As rocks form slowly, they can trap things in their timeless clutches. A material trapped inside a mineral is called an inclusion.