Uncategorized
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ClimateFlood planners should not forget beavers
Beaver dams can reduce flooding downstream, new research shows.
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ClimateRate of atmospheric carbon dioxide rise unprecedented
The current rate of carbon dioxide entering the atmosphere is unprecedented over at least the last 66 million years, new research shows.
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PsychologyOn Facebook, you control the slant of the news you choose
Facebook users shield themselves from opposing political ideas more than the site does.
By Bruce Bower -
Planetary ScienceOrigin date established for Mercury’s magnetic field
A 3.8-billion-year-old magnetic field on Mercury provides clues as to how the once volcanically active planet evolved.
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Health & MedicineKids who have had measles are at higher risk of fatal infections
Measles infection leaves kids vulnerable to other infectious diseases for much longer than scientists suspected.
By Meghan Rosen -
GeneticsEditing human germline cells sparks ethics debate
Human gene editing experiments raise scientific and societal questions.
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ChemistryBacteria staining method has long been misexplained
New research upends what scientists know about a classic lab technique, called gram staining, used for more than a century to characterized and classify bacteria.
By Beth Mole -
Astronomy‘Black Hole’ traces 100 years of a transformative idea
Implied by general relativity and proven by astronomical discoveries, black holes’ existence took decades for physicists to accept.
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MicrobesPossible nearest living relatives to complex life found in seafloor mud
New phylum of sea-bottom archaea microbes could be closest living relatives yet found to the eukaryote domain of complex life that includes people.
By Susan Milius -
Science & SocietyCancerous clams and other sci-fi fodder
Fans of science fiction will find a few items in this issue sure to trip the imagination.
By Eva Emerson -
AstronomyWandering planets, the smell of rain and more reader feedback
Readers consider how hard it would be to fashion Paleolithic tools, discuss what to call free-floating worlds and more.
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Planetary ScienceHow did Earth get its water?
Earth is a wet planet that formed in a dry part of the solar system. How our planet’s water arrived may be a story of big, bullying planets and ice-filled asteroids.