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Earth Matters

    Vanguard II Turns 60

    While the now silent Vanguard II continues to orbit the Earth, its back-up brother has been restored and mounted in the Goddard Space Flight Center’s Earth Sciences building’s atrium.

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    Landsat 7 Turns 20

    If we travel two decades back in time and rewind the 4.73 billion kilometers that the satellite has flown since April 1999, we arrive at a very different moment in spaced-based Earth observation.

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    March Puzzler

    Your challenge is to use the comments section to tell us what we are looking at and why it is interesting.

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    A Grand Centennial

    NASA Earth Observatory has existed for just one-fifth the time of Grand Canyon National Park, but over those 20 years, satellites and astronauts have captured some magnificent views of the park from above.

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