News
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TechPrinted robot moves with a beat
Tiny device created with a 3-D printer employs heart cells to make it move.
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EarthGulf spill harmed small fish, studies indicate
Effects vary but dire impacts seen with some very low exposures.
By Janet Raloff -
Health & MedicineProtein’s destructive journey in brain may cause Parkinson’s
Clumps of alpha-synuclein move through dopamine-producing cells, mouse study finds.
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Planetary ScienceDigging deep into Martian soil
NASA's rover takes a closer look at Mars' surface.
By Nadia Drake -
SpaceRogue planet found among gang of stars
Astronomers report the closest such free-floating object to Earth.
By Tanya Lewis -
LifeRainforest katydids evolved mammal-like ears
Tiny hearing organs below insect’s knees have a structure similar to those in humans.
By Susan Milius -
TechTiny muscles pull a big punch
Coated carbon nanotubes form the basis of this smart new material.
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HumansOldest examples of hunting weapon uncovered in South Africa
A common ancestor of people and Neandertals may have flung stone-tipped shafts at animal prey.
By Bruce Bower -
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LifeEbola may go airborne
Infected pigs can transmit virus to primates without contact, a new study finds.
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EarthGlobal drought may have changed less than thought
Simple models have overestimated drying over past 60 years.
By Tanya Lewis -
EarthPandas’ home range may move as climate changes
Warming might force animals’ food source, bamboo, to higher elevations.