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E.g., 06/25/2018
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  • News

    How birds may have escaped the dino-killing asteroid impact

    Nothing against trees. But maybe it’s better not to get too dependent on them if you want to survive a big flaming space object crashing into Earth.

    The asteroid impact that caused a mass extinction 66 million years probably also triggered the collapse of forests worldwide, a new investigation of the plant fossil record concludes. Needing trees and extensive plant cover for nesting or...

    05/24/2018 - 17:44 Paleontology
  • News

    The Chicxulub asteroid impact might have set off 100,000 years of global warming

    After a giant asteroid hit Earth about 66 million years ago, the planet’s climate went on a roller coaster ride.

    The space rock’s impact set off tsunamis and wildfires before climate-chilling clouds of sulfur gas engulfed the planet for decades, wiping out most life (SN: 11/25/17, p. 14). As these clouds dissipated, billions of tons of carbon dioxide, which spewed into the atmosphere...

    05/24/2018 - 15:13 Paleontology, Oceans, Climate
  • News in Brief

    Pregnant bonobos get a little delivery help from their friends

    Like humans, African apes called bonobos may treat birth as a social event with a serious purpose.

    In three recorded instances in captivity, female bonobos stood close by and provided protection and support to a bonobo giving birth to a healthy infant. Female bystanders also gestured as if ready to hold an infant before it was born, or actually held one as it was born, scientists report...

    05/24/2018 - 13:26 Animals, Anthropology, Evolution
  • News

    Plasma rain in the sun’s atmosphere falls in surprising places

    LEESBURG, Va. — Coronal rain may have a finer grain.

    A search for plasma precipitation in the sun’s atmosphere reveals that the rain turns up in unexpected places. That discovery might mean the rain can fall as a fine mist as well as a shower, new data suggest. Ultimately, tracing the movement of this plasma could help solve the mystery of why the solar atmosphere, or corona, is so hot...

    05/24/2018 - 07:00 Astronomy
  • News in Brief

    As CO2 increases, rice loses B vitamins and other nutrients

    By the end of this century, rice may not deliver the same B vitamin levels that it does today. Protein and certain minerals will dwindle, too, new data suggest.

    Testing higher carbon dioxide concentrations in experimental rice paddies in China predicts losses in four vitamins — B1, B2, B5 and B9 — an international team reports May 23 in Science Advances. Adding results from similar...

    05/23/2018 - 16:17 Climate, Agriculture
  • News in Brief

    Fleets of self-driving taxis could be choreographed to cut traffic

    Self-driving taxis that use an algorithm to work together like a well-oiled machine could someday cut down on city traffic.

    Researchers have created a computer program that can continually analyze incoming ride-hailing requests sent from a smartphone app and plot the most efficient course for each car in a self-driving fleet to take (SN Online: 11/21/17). Unlike standard taxis, which...

    05/23/2018 - 13:00 Technology, Science & Society
  • News

    Genetic sleuthing again IDs a murder suspect in a cold case

    For the second time in less than a month, DNA probes of family trees in a public database have helped police catch a murder suspect.

    On May 17, detectives in Washington arrested 55-year-old William Earl Talbott II of Seatac for the 1987 double murder of Jay Cook and Tanya Van Cuylenborg. A new DNA sleuthing technique called genetic genealogy led to Talbott’s capture. His arrest came just...

    05/23/2018 - 10:42 Genetics, Ancestry, Science & Society
  • Your Free Audiobook - Planet Drama

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    From asteroids and gamma-ray bursts to volcanoes, landslides and tornadoes, there are a lot of disasters with the potential to wipe out life on Earth. The stories that follow from Science News and Science News for Students explore the natural disasters that have killed flora and fauna, including humans, throughout history on the planet. Listen and learn about how scientists are trying to...

    05/22/2018 - 18:44
  • May 26, 2018

    05/22/2018 - 12:15
  • Feature

    Special report: Genetic testing goes mainstream

    In a months-long investigation of consumer genetic testing, molecular biology senior writer Tina Hesman Saey sent a cheek swab or spit sample to eight companies. Once her results were in, she talked to genetics researchers and people who received life-changing news based on their DNA.

    In this multipart package, Saey explores what you can expect to learn from consumer genetic testing and...

    05/22/2018 - 12:00 Genetics