1. Trilobites

    PhotoA ring spinifex grass, also known as a fairy circle, in Twyfelfontein, Namibia.
    CreditMJ Photography/Alamy

    The Fairy Circles Mystery Gets a New Suspect

    A small study suggests that soil microbes could play a role in the ring-like grass formations in parts of Australia’s wilderness.


  2. Out There

    Photo“This is our Mars rover landing moment,” said Chris Polly, a physicist at the Fermi National Accelerator Laboratory, or Fermilab, in Batavia, Ill., where the research is being conducted.
    CreditReidar Hahn/Fermilab, via US Department of Energy

    A Tiny Particle’s Wobble Could Upend the Known Laws of Physics

    Experiments with particles known as muons suggest that there are forms of matter and energy vital to the nature and evolution of the cosmos that are not yet known to science.



More in Trilobites ?
  1. Photo“Ice Queen,” a snowflake photographed by Dr. Nathan Myhrvold in Yellowknife, Canada, in March 2020.
    CreditNathan Myhrvold/Modernist Cuisine Gallery, LLC

    Snowflakes as You’ve Never Seen Them Before

    Whether made with setups using sapphire and carbon fiber or an old mitten and a standard camera, these photographic approaches allow close-ups of the tiny masterpieces formed when snow falls.


Climate and Environment

More in Climate and Environment ?
  1. PhotoThe dockside of Zhongan United Coal Industry Chemical Company in Anhui Province, China, last month.
    CreditZhao Tianqi/Visual China Group, via Getty Images

    Seeking Cooperation on Climate, U.S. Faces Friction With China

    John Kerry, President Biden’s climate envoy, is pressing China to do more to address global warming. But he faces an emboldened Beijing leadership that thinks the United States has lagged behind.

    By Steven Lee Myers and

  2. Photo

    How Green Are Electric Vehicles?

    In short: Very green. But plug-in cars still have environmental effects. Here’s a guide to the main issues and how they might be addressed.

    By Hiroko Tabuchi and

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