The U.S. May Ban Kratom. But Are its Effects Deadly or Lifesaving?

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Kratom is a drug popular in Southeast Asia that’s derived from the leaves of Mitragyna speciosa, a tree in the coffee family. Kratom’s pain relieving properties allowed it to surge in popularity in the United States in the wake of the opioid crisis. (Rattiya Thongdumhyu/shutterstock) Across America, thousands of people are throwing away their prescription drugs and picking up kratom, a plant-based drug from Southeast Asia usually brewed as a tea. Within the leaves of this tropical ...read more

The Birds and the Bees Reacted to the 2017 Great American Eclipse

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This stunning view of the total solar eclipse in 2017 was made by combining seven exposures ranging from short to long. The surface of the Moon is visible in this image because it is illuminated by light reflected off Earth, called Earthshine. (Credit: Michael S. Adler) On August 21, 2017, over half of the population of United States took at least a few minutes out of their busy schedules to glimpse the first total solar eclipse to cross the continental U.S. in nearly 40 years. As many of us g ...read more

Antares Rocket Will Launch Cargo From Virginia This Friday

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The Northrop Grumman Antares rocket, with Cygnus spacecraft aboard, is seen on Pad-0A, Tuesday, Nov. 13, 2018, at NASA’s Wallops Flight Facility in Virginia. (Credit: NASA/Joel Kowsky) An Impending Launch This week, Northrop Grumman’s Antares rocket will launch the Cygnus cargo spacecraft to the International Space Station. The craft will deliver supplies and scientific equipment to the astronauts on board as part of Northrop Grumman’s NG-10 mission. Originally scheduled to l ...read more

Predators Need A Lot Of Luck To Survive — And We're Rigging the Game Against Them

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(Credit: Andre Marais/Shutterstock) Finding food is a risky undertaking for wild animals. But for some predators, the element of risk, and it’s twin, luck, is a much greater factor. Predators like the cheetah aren’t guaranteed meals when they set out to hunt, researchers find in a new study, and that puts them at risk in rapidly changing environments. Where they once could count on getting lucky often enough to survive, a scarcity of prey now makes predators susceptible to sta ...read more

Women Fed Soy Formula As Babies Suffer Worse Menstrual Cramps

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Soy formula exposure during infancy may cause more severe period cramps in adulthood. Around 12 percent of babies are regularly fed soy. (Credit: MaraZe/Shutterstock) Many women accept menstrual cramps as a fact of life. But researchers say that some women have it worse than others and that it may be related to what they were fed as infants. Female babies fed soy formula are prone to more painful periods during their young adult years, according to a new study published this week from the ...read more

Orangutans Delay Their Calls — It's A Sign They're Smarter Than We Thought

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A female orangutan and her baby in Gunung Leuser National Park, Sumatra, Indonesia. (Credit: By Don Mammoser/Shutterstock) It’s easy enough to spot similarities between orangutans and humans — the “man of the forest” can certainly act human, and they share our big brains, social structures and even opposable thumbs. It shouldn’t be too surprising, since we also share about 97 percent of our DNA with the great apes. But a new finding, published today in Science Adv ...read more

Massive Impact Crater Beneath Greenland Could Explain Ice Age Climate Swing

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Topography under Hiawatha glacier in Greenland, mapped with airborne radar data (1997 to 2014, NASA; 2016 Alfred Wegener Institute). Black triangles and purple circles are elevated peaks around the rim and center. Dotted red lines and black circles show locations of additional sampling. (Credit: Kjæer et al. / Science Advances) Most of Earth’s surface has been plotted, mapped and measured. And along the way, scientists have turned up a plethora of craters big and small. But there w ...read more

Campi Flegrei Is Warming Up, But We're Likely Not Close to an Eruption

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The Bay of Naples in Italy, with the Campi Flegrei to the north (top) and Vesuvius to the east (right). Image taken 2002, NASA. First things first. This new article in Science Advances I’m about to discuss does not — I repeat, does not — say that an eruption will be happening soon at the Campi Flegrei in Italy. There is nothing in the paper that says we need to elevate the alert status or that anything fundamentally has changed about the current state of the caldera. So, nobod ...read more

Maybe Next Time: Barnard’s Star B is Likely Uninhabitable

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The image shows an artist’s impression of Barnard’s star b and its dim host star. (Credit: ESO/M. Kornmesser) Put on your friendliest face and say hello to the newest member of our planetary neighborhood: Barnard’s star b. An international team led by researchers from the Carnegie Institution for Science announced today that they’ve detected an exoplanet orbiting Barnard’s star, the closest single star to Earth at just six light-years away. The ...read more

Two Studies Confirm that Human Activities Are Making Storms Worse

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Damage caused by Hurricane Harvey in Rockport, Texas. (Credit: AMFPhotography/Shutterstock) The death toll from hurricanes Harvey, Irma and Maria numbers in the thousands. Excessive rain and flooding from the Atlantic hurricane season led to damages that cost at least $265 billion. Now, two new studies show how human activity is at fault. “Tropical cyclones can have really strong impacts on people’s lives,” Christina Patricola, a climate scientist with the Lawrence Berkeley N ...read more

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