Vol. 201 No. 2
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More Stories from the January 29, 2022 issue

  1. Life

    Cleared tropical forests can regain ground surprisingly fast

    Tropical forests can re-establish themselves on abandoned agricultural lands faster than expected, scientists say.

  2. Animals

    Gut bacteria let vulture bees eat rotting flesh without getting sick

    Acid-producing bacteria in the gut of vulture bees let these “weirdos of the bee world” safely snack on animal carcasses.

  3. Health & Medicine

    50 years ago, researchers thought Americans outgrew marijuana

    In the 1970s, it was thought that adults over age 25 may “outgrow” marijuana. Fifty years later, older adults are in on the action.

  4. Animals

    Here’s how spider geckos survive on Earth’s hottest landscape

    An analysis of the stomach contents of Misonne’s spider geckos shows there are more critters in the heart of Iran’s Lut Desert than meets the eye.

  5. Climate

    Vikings may have fled Greenland to escape rising seas

    Vikings abandoned Greenland in the 15th century. Lower temperatures, an expanding ice sheet and rising sea levels may have played a role in their departure.

  6. Astronomy

    The Parker Solar Probe is the first spacecraft to visit the sun’s atmosphere

    NASA’s Parker Solar Probe crossed a boundary between the sun’s atmosphere and interplanetary space that has been predicted for decades but never observed.

  7. Archaeology

    Arctic hunter-gatherers were advanced ironworkers more than 2,000 years ago

    Swedish excavations uncover furnaces and fire pits from a big metal operation run by a small-scale society, a new study finds.

  8. Planetary Science

    Enceladus’ plumes might not come from an underground ocean

    The celebrated plumes of Saturn’s moon Enceladus could come from pockets of watery mush in the moon’s icy shell, simulations suggest.

  9. Climate

    Antarctica’s Thwaites Glacier ice shelf could collapse within five years

    The loss of Thwaites’ buttressing ice shelf could hasten the demise of the “Doomsday Glacier” and raise the risk of dramatic sea level rise.

  10. Life

    A terrifying robot can thwart invasive mosquito fish

    A robot designed to mimic a natural predator of mosquito fish can impair the survival and reproduction of this costly invasive species.

  11. Quantum Physics

    Quantum physics requires imaginary numbers to explain reality

    Quantum theory based only on real numbers fails to explain the results of two new experiments.