t Squirrels eavesdrop on bird chatter to tell when a threat has passed By www.pbs.org Published On :: These nosy rodents may not speak bird-ese, per se, but they can still use avian chatter as a safety cue. Full Article
t Hurricane Dorian crawls up the coast from Florida to Virginia By www.pbs.org Published On :: Some of the storm’s features hint at troubling trends in recent hurricanes. Full Article
t Fossil finger points to a surprising link between humans and Denisovans By www.pbs.org Published On :: New findings suggest Neanderthals evolved their unusually broad fingers after they split from Denisovans, just 400,000 years ago. Full Article
t How Kīlauea’s lava birthed an algal bloom visible from space By www.pbs.org Published On :: Lava descending into Hawai‘i’s ocean drove an upward surge of deep sea nutrients, cultivating life at the surface. Full Article
t Supercooling preserves donor livers for more than a day By www.pbs.org Published On :: The breakthrough could mean that fewer organs go to waste before they make it into a transplant recipient. Full Article
t Newly described species of electric eel serves up shocks of 860 volts By www.pbs.org Published On :: That earns this fish, Electrophorus voltai, the title of the strongest known living source of electricity. Full Article
t Intricate ‘toe maps’ exist in the brains of artists who paint with their feet By www.pbs.org Published On :: Two men born without arms showcase the brain’s extraordinary flexibility. Full Article
t Water vapor found on an ‘Earth-sized’ exoplanet 110 light-years from home By www.pbs.org Published On :: Scientists say the planet, called K2-18b, is “the best candidate for habitability” beyond our solar system. Full Article
t Popular pesticide throws off birds’ feeding and migration schedules By www.pbs.org Published On :: Delays during migration can imperil birds’ chances of a successful breeding season. Full Article
t Astronomers discover two giant, high-energy ‘bubbles’ at the center of the Milky Way By www.pbs.org Published On :: The gargantuan structures hint at a massive explosion in our galaxy’s past. Full Article
t Astronomers may have just detected the most massive neutron star yet By www.pbs.org Published On :: It’s almost too dense to exist. Almost. Full Article
t Soot from polluted air can reach the fetal side of the placenta By www.pbs.org Published On :: A new study hints at the ways in which air pollution may directly impact a fetus. Full Article
t Scientists are about to lock themselves into an Arctic ice floe for a year By www.pbs.org Published On :: In the largest Arctic expedition yet, researchers will gather as much data as they can on the fading ice—and climate change. Full Article
t An ancient asteroid collision fostered life on Earth By www.pbs.org Published On :: A new study suggests a plume of dust once blocked the sun’s rays from Earth, triggering an ice age some 466 million years ago. Full Article
t Antibiotic-resistant bacteria in farm animals are rising in low- and middle-income countries By www.pbs.org Published On :: That spells trouble for the entire planet. Full Article
t To save climate-sensitive pikas, conservation efforts need to get local By www.pbs.org Published On :: American pikas’ responses to climate are driven by location, location, location. Full Article
t Study finds kittens bond with their human caregivers like babies do By www.pbs.org Published On :: They’re not as aloof as some think. Full Article
t Cooking changed human history. Did it change our microbes too? By www.pbs.org Published On :: Gut microbes react differently to raw and cooked versions of the same foods. Full Article
t Rabbit study hints at the origins of the female orgasm By www.pbs.org Published On :: Researchers used rabbits and antidepressants to search for a link between orgasm and ovulation in female mammals. Full Article
t Planet Nine probably isn’t a black hole. But it might be worth checking By www.pbs.org Published On :: A pair of physicists think it’s possible that a tiny black hole left over from the universe’s early days lurks in the outer solar system. Full Article
t Wildlife trade may put nearly 9,000 land-based species at risk of extinction By www.pbs.org Published On :: A new analysis predicts that 3,196 animals will join the 5,579 already snared in the global wildlife market. Full Article
t Scientists just snapped the best image yet of the universe’s ‘cosmic web’ By www.pbs.org Published On :: Light from nearby galaxies illuminated the web’s ‘threads,’ making them directly visible to telescopes on Earth. Full Article
t Scientists may now be able to predict forest die-off up to 19 months in advance By www.pbs.org Published On :: Even forests that look green from space can show symptoms of impending decline. Full Article
t Salts in Gale Crater suggest Mars lost its water through drastic climate fluctuations By www.pbs.org Published On :: New data from NASA’s Curiosity rover suggests that water vacated Mars in fits and starts. Full Article
t Saturn unseats Jupiter as planet with the most moons in our solar system By www.pbs.org Published On :: Astronomers discovered 20 new moons around Saturn, bringing its total to 82. Full Article
t October Events: "Look Who's Driving" Screenings & Panel Discussions By www.pbs.org Published On :: This month, NOVA is hosting three events that will dive into how autonomous vehicles work, how they may change the way we live, and whether we will ever be able to entrust them with our lives. Full Article
t Refrigerators of the future may be inspired by the weird physics of rubber By www.pbs.org Published On :: A new refrigeration technique harnesses the ability of rubber and other materials to cool down when released from a tight twist. Full Article
t Meet the second confirmed interstellar object to enter our solar system By www.pbs.org Published On :: The comet, 2I/Borisov, comes from another planetary system, but bears a remarkable resemblance to local space rocks. Full Article
t To predict the next infectious disease outbreak, ask a computer By www.pbs.org Published On :: Mathematical modeling and AI can pick out patterns preceding epidemics that human brains can’t readily discern. Full Article
t Scientists retract study linking CRISPR baby mutation to early death By www.pbs.org Published On :: The study, originally published in June, contained an error that its authors caught months later. Full Article
t Lab-grown mini-brains highlight developmental differences between humans and great apes By www.pbs.org Published On :: In a new study, brain-like organoids made from human cells were slower to mature than their chimpanzee and macaque counterparts. Full Article
t World’s fastest-running ant scuttles over scalding Saharan sands at super speeds By www.pbs.org Published On :: Saharan silver ants don’t have the longest limbs. But they make up for it with a sprightly combination of fast pacing, light-footedness, and synchronized stepping that effectively turns their six legs into two. Full Article
t These 480-million-year-old conga lines preserve early signs of group behavior By www.pbs.org Published On :: Nearly half a billion years ago, marine arthropods called trilobites lined up single-file before meeting a tragic end. Full Article
t World’s loudest bird flirts by screaming in your face By www.pbs.org Published On :: Researchers aren’t sure how these birds maintain this deafening mating ritual without damaging their hearing. Full Article
t What caused Saturn’s strange spell of storms in 2018? By www.pbs.org Published On :: Researchers have uncovered a new category of giant storm on Saturn’s surface. Full Article
t Google says it just achieved “quantum supremacy.” Is it true? By www.pbs.org Published On :: If validated, Google’s new technology may bring us closer to a future of ultra-efficient computing. Full Article
t New fossils capture million-year timeline of life after the dinosaurs died By www.pbs.org Published On :: Thousands of fossils from Colorado show how plants and animals evolved together after an asteroid devastated life on Earth. Full Article
t Racially-biased medical algorithm prioritizes white patients over black patients By www.pbs.org Published On :: The algorithm was based on the faulty assumption that health care spending is a good proxy for wellbeing. But there seems to be a quick fix. Full Article
t New study more than triples estimates of people at risk from rising seas By www.pbs.org Published On :: Researchers used artificial intelligence to reevaluate elevations vulnerable to rising sea levels. Full Article
t Vampire bats form lasting bonds of ‘friendship,’ just like us By www.pbs.org Published On :: The relationships these winged mammals forge in captivity are strong enough to survive the jarring transition back into the wild. Full Article
t How measles virus triggers immune system ‘amnesia’ By www.pbs.org Published On :: In addition to causing disease itself, the virus destroys immune cells trained to respond to other pathogens the body has encountered before. Full Article
t Poor-quality sleep could prime the brain for an anxious day By www.pbs.org Published On :: From a neurobiology perspective, anxiety and sleep deprivation look very much alike. Full Article
t Invasive, flammable grasses now blanket much of the United States By www.pbs.org Published On :: New research quantifies the fire risks of eight species of invasive grass. Full Article
t From ashes to AI: How technology puts a new lens on ancient texts By www.pbs.org Published On :: Recent breakthroughs in scanning, image processing, and machine learning are helping researchers read historic documents once considered lost to time. Full Article
t In a controversial study, DNA from today’s southern Africans hints at possible “homeland” for modern humans By www.pbs.org Published On :: But many questions remain about the true origin of the Homo sapiens species. Full Article
t Feast your eyes on the first-ever photos of a silver-backed chevrotain in the wild By www.pbs.org Published On :: The images confirm the species, which has been “lost” to science for 29 years, is alive and well in its native Vietnam. Full Article
t Anatomy professor uses 500-year-old da Vinci drawings to guide cadaver dissection By www.pbs.org Published On :: Leonardo da Vinci dissected some 30 cadavers in his lifetime, leaving behind a trove of beautiful—and accurate—anatomical drawings. Full Article
t How mechanical engineering could revolutionize the study of preterm birth By www.pbs.org Published On :: Scientists are using artificial cervices and 3D models of the uterus to better understand pregnancy and childbirth. Full Article
t How polar bear guards protect the largest Arctic expedition ever By www.pbs.org Published On :: A glimpse into the lives of the MOSAiC mission’s polar bear guards—and the powerful predators they watch for. Full Article
t Dogs, drones, and DNA: How eight “extinct” species were rediscovered By www.pbs.org Published On :: A giant tortoise, a seabird, and a gecko all went undetected by scientists for more than a century. Full Article