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hubblesite.org
TIH: April 24, 1990- The Space Shuttle Discovery launches carrying the Hubble Space Telescope into orbit
kleinbl00
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user-inactivated
hubblesite.org
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#todayinhistory
Great Collection of Hubble Images
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theZproject
hubblesite.org
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#space
Hubble measures the rotation rate of a galaxy based on the clock-like movement of its stars
thenewgreen
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mk
hubblesite.org
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#astronomy
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#astronomy.mk
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