All Stories
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ArchaeologyAncient Angkor’s mysterious decline may have been slow, not sudden
Analyzing sediment from the massive city’s moat challenges the idea that the last capital of the Khmer Empire collapsed suddenly.
By Bruce Bower -
AnimalsHermit crabs are drawn to the smell of their own dead
A new study finds that the smell of hermit crab flesh attracts other hermit crabs of the same species desperately looking for a larger shell.
By Yao-Hua Law -
Health & MedicineThe FDA says don’t buy young plasma therapies. Here’s why
Infusions of plasma from young people may hold the secret of youth, but there’s not much evidence to support the idea yet.
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Science & SocietyTop 10 science anniversaries to celebrate in 2019
Top 10 science anniversaries in 2019 include expeditions, treatises and tabulations.
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Planetary ScienceHayabusa2 just tried to collect asteroid dust for the first time
The Japanese Hayabusa2 spacecraft touched down on asteroid Ryugu and attempted to gather a sample of its rock to bring back to Earth.
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AstronomyColliding neutron stars shot a light-speed jet through space
A stream of particles created in a neutron star crash, detected in 2017 using gravitational waves, could explain certain mysterious flashes of light.
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AnthropologyAfrican hominid fossils show ancient steps toward a two-legged stride
New Ardipithecus ramidus fossils reveal how hominids were shifting toward humanlike walking more than 4 million years ago.
By Bruce Bower -
PhysicsSupernovas show the universe expands at the same rate in all directions
Analyzing supernovas indicates that expansion rates agree within 1 percent across large regions of sky.
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Health & MedicineA ban on artificial trans fats in NYC restaurants appears to be working
New Yorkers’ levels of artificial trans fats dropped, especially in people who ate out the most, after a citywide ban on the fats in restaurant foods.
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AnimalsThe world’s largest bee has been rediscovered after 38 years
Researchers rediscovered the world’s largest bee living in the forests of an island of Indonesia.
By Jeremy Rehm -
ClimateDueling dates for a huge eruption reignite the debate over dinosaurs’ death
New dating techniques for the Deccan Traps volcanic eruptions disagree on whether they were the main culprit in the dinosaurs’ demise.
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PaleontologyA deer-sized T. rex ancestor shows how fast tyrannosaurs became giants
A newly found dinosaur called Moros intrepidus fills a hole in the evolutionary history of tyrannosaurs, helping narrow when the group sized up.
By Jeremy Rehm