Uncategorized
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Life
Origin of photosynthesis may go further back than estimates from 50 years ago
Analyzing ancient rocks has helped push back the date when photosynthetic organisms first emerged by nearly a billion years.
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Astronomy
Hydrogen volcanoes might boost planets’ potential for life
Volcanoes that spew hydrogen could increase the number of potentially habitable planets in the universe.
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Health & Medicine
Colorectal cancer is on the rise among younger adults
Colorectal cancer rates in the United States have increased in people younger than 50.
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Animals
Wild elephants clock shortest shut-eye recorded for mammals
Among mammals, wild elephants may need the least amount of sleep, new measurements suggest.
By Susan Milius -
Paleontology
Oldest microfossils suggest life thrived on Earth about 4 billion years ago
A new claim for the oldest microfossils on Earth suggests that life may have originated in hydrothermal vents, but some scientists have doubts.
By Meghan Rosen -
Planetary Science
Saturn’s ‘Death Star’ moon may not conceal ocean after all
A lack of cracks on Mimas suggests that the icy moon of Saturn doesn’t conceal a subsurface ocean of liquid water.
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Health & Medicine
DNA may offer rapid road to Zika vaccine
Researchers are pursuing multiple vaccine strategies for blocking Zika infection.
By Meghan Rosen -
Life
Bacteria genes offer new strategy for sterilizing mosquitoes
Two genes in Wolbachia bacteria could be used to sterilize mosquitoes that transmit Zika.
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Astronomy
Black hole enjoys fantastically long stellar feast
A supermassive black hole about 1.8 billion light-years away has been gorging on the same star for a record-breaking decade.
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Earth
Newly identified continent Zealandia faces a battle for recognition
Geologists make the case for a new continent, dubbed Zealandia, found largely submerged beneath the southwestern Pacific Ocean.
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Animals
Score! Bumblebees see how to sink ball in goal, then do it better
A first lesson in six-legged soccer tests bumblebees’ ability to learn.
By Susan Milius -
Life
Bacteria’s amyloids display surprising structure
Protein clusters made by Staphylococcus aureus bacteria have a surprising new structure.