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AstronomyAn Earth-sized hell circles faraway star
Kepler-78b, an Earth-sized, extremely hot exoplanet made of rock and iron, is the smallest with known diameter and mass.
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Health & MedicineAntibodies show progress against HIV
Proteins suppress disease in monkeys, but don’t cure it.
By Nathan Seppa -
ChemistryFloating beads of water act as tiny test tubes
Chemists exploit pH and ion charge in superheated water drops to create nanoparticles.
By Beth Mole -
GeneticsGenetic variants may keep Siberians warm
People in frigid cold evolved changes in fat metabolism, shivering.
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EnvironmentMercury contamination in California to last 10,000 years
Toxic remnants of gold rush will seep into San Francisco area waterways for millennia.
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GeneticsReprogrammed stem cells may mirror embryonic ones after all
Donor genetics may explain why the two cell types vary.
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Health & MedicineGene links smoking, multiple sclerosis
Smokers with genetic variant face tripled risk of MS.
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PhysicsMaterial looks cool while heating up
Substance that tricks infrared camera could pave the way for new types of camouflage and heating technology.
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AstronomyOort cloud tosses astronomers a cometary curveball
In late November, ISON will deliver debris from the dawn of the solar system to Earth’s doorstep.
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ChemistryWater squishes into stable shapes, no container required
Nanoparticles lock together to hold water in place for more than a month.
By Beth Mole -
LifeScorpion venom kills pain in mice
Toxin works with nerve proteins to block distress signals’ journey to brain.
By Meghan Rosen