News

  1. Space

    These are the most detailed images of the sun ever taken

    First images from the Daniel K. Inouye Solar Telescope reveal details on the surface of the sun three times as small as ever seen.

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  2. Health & Medicine

    Your most pressing questions about the new coronavirus, answered

    As the new coronavirus outbreak unfolds, we are updating this FAQ with the latest on the race to understand the virus and stop the growing global health crisis. Our most recent update was posted February 18.

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  3. Earth

    Tiny meteorites suggest ancient Earth had a carbon dioxide–rich atmosphere

    Simulations of reactions between 2.7-billion-year-old micrometeorites and atmospheric gases hint Archean Earth’s atmosphere had high levels of CO2.