The newly approved drug brexanolone simulates a natural hormone to alleviate symptoms of postpartum depression.
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New statistics on fentanyl-related overdoses show troubling increases in deaths among African Americans, Hispanics and men.
A navigational device for taking altitudes at sea was found in a Portuguese shipwreck in the Arabian Sea and dates back to 1496.
Record-low sea ice in 2018 sent ripples through the Bering Sea’s entire ecosystem. Will this be the region’s new normal?
A new treasure trove of Cambrian fossils in China dating to 518 million years ago could rival Canada’s Burgess Shale.
Frozen testicle tissue samples from prepubescent monkeys transplanted back onto those monkeys once they matured produced sperm.
Little is known about the long-term effects on people of a newly approved antidepressant based on the anesthetic ketamine.
News in Brief
Japan’s Hayabusa2 team has narrowed down the asteroid Ryugu’s origins based on its color.
Two columns of X-rays that are hundreds of light-years long could explain the existence of giant bubbles of energetic light that sandwich the galaxy.
News in Brief
Scientists have found the first known fossil of a bird that died with an unlaid egg inside its body. The egg has been crushed by pressure over time.
Nanoparticles coated with blood cell membranes can move through the body to clean up toxins or heal tissues — without instigating an immune reaction.
The educational achievement gap between the poorest and richest U.S. students remains as wide as it was almost 50 years ago.
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‘No Beast So Fierce’ examines the historical and environmental factors that turned a tiger in Nepal and India into a human-killer.
The first geologic map of Ultima Thule shows it might be made of many smaller rocks that clumped together under the force of their own gravity.
An analysis of brain waves offers new evidence that people subconsciously process information about the planet’s magnetism.
The newly identified starry dwarf frog represents a new species, genus and potentially even a new family.
Japanese scientists say some proteins in frozen mammoth cells may still work after 28,000 years. But that activity may be more mouse than mammoth.
A new documentary series about Yellowstone displays the dynamic, dramatic and exciting ecosystem that thrives within the park’s gates.
Scientists used a replica of a shrimp claw to re-create the extreme pressures and temperatures that the animals produce underwater.
News in Brief
Deaths within 30 days of a heart attack have declined from 20 percent in 1995 to 12.4 percent in 2014, according to an analysis of Medicare patient data.
“T. rex: The Ultimate Predator,” a new exhibit in New York City, draws on the latest science to provide a fresh look at Tyrannosaurus rex and its relatives.
Eating soft, processed foods refashioned adults' jaws, which added “f” and “v” sounds to speech and changed languages worldwide, a study finds.