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Fifteen years ago, a remarkable mission 

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unfolded above the Earth.

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The Hubble  Space Telescope, humanity's eye on the universe,  

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received an unprecedented upgrade

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during its fifth and final Servicing Mission.

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In May 2009, a brave team of astronauts

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embarked on a daring journey aboard Space Shuttle Atlantis.

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Their mission? 
To breathe new life into Hubble,  

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ensuring its legacy of discovery 
could continue for years to come.

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Over the course of five intense 
spacewalks,

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they replaced aging components,

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installed state-of-the-art instruments,

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and rejuvenated Hubble's capabilities.

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The impact was profound.

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Hubble's vision 
became sharper,

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its reach extended deeper into the cosmos,

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and its scientific 
output soared to brand new heights.

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Fifteen years later, we continue to celebrate 
the remarkable

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success of Servicing Mission 4, 

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a testament to human ingenuity,

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perseverance, 
and the enduring spirit of exploration.

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"Follow us on social media @NASAHubble"