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  1. Astronomy

    Cassini eyes Iapetus

    Only a few days after it entered orbit around Saturn, the Cassini spacecraft captured an image of Saturn's split- personality moon Iapetus.

    By Ron Cowen

  2. 19449

    Your article says that sunspots are 3,500°C. Yet further in the article, it says that the solar flare of Nov. 4, 2003, was 41 million°C. Is that a typographical error? Bruce BarnbaumGranite Falls, Wash. That’s no typo. The release of magnetic energy in the sun’s atmosphere during a flare heats the material that’s been ejected […]

    By Science News
  3. Earth

    Parting Shots

    Data collected during an 18-day barrage of major solar flares late last year—including a record-setting coronal mass ejection on Nov.