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  • On the left is the interstellar medium and on the right is the solar system surrounded by the heliosphere. A bow shock is shown outside the heliosphere at the boundary where the two meet.

    No. 2: A 'Squashed' Heliosphere

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  • close-up of part of the sun with magnetic field lines shown representing the Sun' magnetic field

    No. 4: Seasons of the Sun: The Solar Cycle

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  • What's Up

    What's Up for March?

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  • Hinode imagery of part of the sun showing a large black sunspot and its filamentary penumbrae in the upper left, and solar granulation in the rest of the image.

    No. 5: The Dynamic Sun

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  • TRACE image showing emission from gas at 1 million degrees, of Active Region 9077 on 19 July 2000, at 23:30UT.

    Sun-Earth Day 2009 Teaser #1

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  • Technicians work on Landsat 5 in the early 1980s.

    25 Years of Landsat 5

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  • What's Up

    What's Up for February?

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  • contingency briefing for Orbiting Carbon Observatory

    OCO Launch Contingency Briefing

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  • Still from Google flyover video

    Flyover of Google CO2 Map

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  • Artist concept of the Orbiting Carbon Observatory

    Orbiting Carbon Observatory

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