Uncategorized
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TechWind power is looking up — to the clouds
Placing wind turbines high in the sky could let them harvest power from the faster, more reliable winds found at altitude.
By Sid Perkins -
ClimateLightning strikes will surge with climate change
Warming temperatures will lead to 50 percent more lightning strikes across the 48 U.S. states in the next century, researchers report. That increase could lead to more warming, more fires and even more deaths.
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EarthArtificial sweeteners pollute streams
Fake sugars sweeten foods without adding calories. But most pass right through the body, down the toilet, into water treatment plants — and from there, right into lakes and streams.
By Janet Raloff -
PhysicsNew particle may help probe strongest force in the universe
A newfound subatomic particle should allow scientists to better understand the strong force that holds together the nucleus of every atom.
By Andrew Grant -
AnimalsAncient jellyfish died a strange death
Scientists have probed the fossilized remains of an ancient jellyfish. It reveals a bizarre sequence of events that led to its preservation 310 million years ago.
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PlanetsComet probe may shed light on Earth’s past
Scientists spent more than two decades setting up Philae’s months-long investigation of a comet. What they hope to learn could shed light on Earth’s childhood — and the source of its water. But that’s if problems with Philae’s landing don’t cut the robot’s life span.
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AnimalsWhen life exploded
Life exploded in diversity during the Cambrian Period. Experts are exploring what could account for this sudden change 540 million years ago.
By Beth Geiger -
PlanetsPicture This: Falling to a comet
After a more than decade-long ride, a robotic lander has left its spacecraft and floated down onto the surface of a comet. From there it should begin scouting for hints at how our solar system formed.
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ClimateWorld leaders call for action on climate change
This week, the presidents of China and the United States pledged to take aggressive action on the release of greenhouse gases to head off dire worldwide climate effects.
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AnimalsNew frog discovered in New York City
This animal could almost be mistaken for the southern leopard frog — until it opens its mouth. The call the males issue has proven unique.
By Janet Raloff -
PhysicsDetecting a single proton
Doctors typically use magnetic-resonance imaging, or MRI, to see tissues and organs inside the body. Physicists can harness a similar technology. And they did that to spotlight something even smaller — a single proton. But followup analyses, reported in January 2015, forced a retraction of their original claim.
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GeneticsGerms help each other fend off antibiotics
Drug-resistant bacteria can cause persistent infections. A new study finds these germs fight drugs in different ways. And they can swap various compounds, increasing their neighbors’ chances of overcoming the drugs meant to kill them.