Earth's Systems

  1. Climate

    Explainer: How scientists know Earth is warming

    Scientists can calculate global temperatures, both present and past. Their findings show that the planet is rapidly heating up.

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  2. Fossils

    Clues to the Great Dying

    Millions of years ago, nearly all life on Earth vanished. Scientists are now starting to figure out what happened.

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  3. Climate

    Picture This: Biggest hurricane in the West

    The hurricane that’s storming into western Mexico has had higher sustained winds than any seen in the Western Hemisphere. It’s also got the lowest atmospheric pressure, making it a monster storm.

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  4. Oceans

    Explainer: What is a tsunami?

    Earthquakes and landslides can create huge waves that travel across oceans.

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  5. Climate

    New El Niño coming on strong

    The current El Niño event could be a record breaker, changing weather patterns worldwide and bringing rain to drought-parched California.

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  6. Physics

    Scientists ‘see’ thunder for first time

    Scientists have captured the first image of thunder. The map shows the relative strengths of the sound waves emanating from the loud clap.

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  7. Earth

    Major new quake rattles Nepal

    A new earthquake struck Nepal on May 12. Its tremors were centered on a new region.

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  8. Climate

    Warming’s role in extreme weather

    Extremes in temperature and precipitation will be more common as global temperatures rise. Human-led climate change is largely to blame, a new study finds.

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  9. Climate

    Cosmic rays offer clues about lightning

    Space particles called cosmic rays pelt Earth. Scientists are using the rain of these particles to probe how lightning forms.

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  10. Earth

    Nepal earthquake offers hints of worse to come

    The magnitude 7.8 earthquake that crumbled much of Nepal’s capital city could be overshadowed by larger future earthquakes along the Himalayas, scientists say.

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  11. Earth

    Mornings become electric

    Lightning packs a wallop in the morning. The most powerful lightning strikes in the continental United States usually peak before noon.

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  12. Microbes

    Life’s ultra-slow lane is deep beneath the sea

    Biologists had suspected the deep seafloor would be little more than barren sediment. But they found a surprising amount of oxygen — and life.

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