1. The Sun in 1967

    1967 solar storm nearly took U.S. to brink of war

    Military space weather forecasters helped avoid a potential nuclear conflict between the U.S. and Russia when they alerted leaders that a solar storm may have been responsible for jamming radio and radar communications.

    • Sun + Space Weather

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  2. Image of Comet ISON taken by the Hubble

    The comet that disappeared: What happened to ISON?

    A new study sheds light on the mystery of Comet ISON, suggesting that the comet broke up before reaching the Sun.

    • Sun + Space Weather

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  3. Foothills Lab Anthes building in Boulder built by UCAR.

    UCAR maintains A+ long-term credit rating

    Strong credit rating translates into lower costs for UCAR's funders.

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  4. Boosting diversity in Earth system science

    The SOARS program has been boosting diversity in Earth system science for two decades.

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  5. Image of Antarctic sea ice in 2014

    Expanding Antarctic sea ice linked to natural variability

    The recent trend of increasing Antarctic sea ice extent — seemingly at odds with climate model projections — can largely be explained by a natural climate fluctuation.

    • Climate

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