News

  1. Space

    The sun is entering solar maximum. Expect auroras, and more

    May saw the strongest auroras in recent memory. As the sun gets more active, those light shows may be a preview of what’s to come until at least 2026.

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  2. Earth

    Freshwater first appeared on Earth 4 billion years ago, ancient crystals hint

    Oxygen ratios in ancient zircon crystals suggest that the planet’s water cycle got started hundreds of millions of years earlier than thought.

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  3. Health & Medicine

    Bird flu can infect cats. What does that mean for their people?

    Pet owners can take precautions to avoid H5N1, such as keeping cats indoors and making sure they don’t eat raw meat or milk.