News in Brief
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Astronomy
Space-based probe passes tests for gravitational wave detection
The LISA Pathfinder mission has demonstrated that future observatories in space could detect gravitational waves.
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Environment
Bikini Atoll radiation levels remain alarmingly high
Lingering radiation levels from nuclear bomb tests on Bikini Atoll are far higher than previously estimated.
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Animals
Tiny plastics cause big problems for perch, lab study finds
Researchers have linked microplastics to feeding behavior changes and development issues in Baltic Sea perch.
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Astronomy
Young exoplanet found nestled close to its star
Scientists have found one of the youngest exoplanets ever, snuggled up close to its star.
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Planetary Science
Comet 67P carries two ingredients for life: glycine, phosphorus
Two ingredients essential for all life, phosphorus and the amino acid glycine, have been found floating around a comet.
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Psychology
‘Vocal fry’ makes female singers seem expressive
Female singers who use vocal fry, the deep, creaky vocal effect made famous by pop stars like Britney Spears, may sound more expressive to listeners.
By Meghan Rosen -
Planetary Science
Seismic experiment might reveal thickness of Europa’s ice
Crashing an empty rocket fuel tank into the surface of Jupiter’s icy moon, Europa, could help scientists figure out the thickness of the ice.
By Meghan Rosen -
Astronomy
Return of superstar supernova raises doubt about its identity
The brightest supernova on record is back for round two, and might not be a supernova after all.
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Life
Scientists find way to break through bad bacteria’s defenses
Enzymes can break down bacterial biofilm’s sugary walls.
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Tech
Insect-sized bot is first to both fly, land
A tiny aerial robot nicknamed RoboBee uses static electricity to perch on surfaces midflight. The landing device could one day help robots conserve energy during search and rescue missions.
By Meghan Rosen -
Neuroscience
Wiping out gut bacteria impairs brain
Antibiotics that wiped out gut bacteria curbed brain cell production in mice, a new study finds.
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Genetics
Some Stone Age humans ventured back to Africa
DNA from an ancient woman suggests some humans trekked back to Africa.
By Bruce Bower