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M100 core WFPC2
Spiral galaxy M100 was re-photographed with the Hubble Space Telescope's Wide Field/Planetary Camera 2, which was installed during the December 1993 space shuttle servicing mission (SM1, STS-61). The replacement camera contained corrective optics to compensate for the space telescope’s fuzzy view. Like putting contact lenses on a nearsighted patient, the M100 picture snapped into focus and was a stunning demonstration that Hubble had been returned to its expected sharpness.
- Release DateDecember 4, 2018
- Science ReleaseCelebratory Galaxy Photo Honors 25th Anniversary of NASA’s First Hubble Servicing Mission
- Credit
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M100 WFPC1, WFPC2, WFC3
Hubble's Improving Vision Since the First Servicing Mission 25 Years Ago The celebration of the 25th anniversary of NASA's first astronaut mission to service the Hubble Space Telescope in orbit marks a pivotal moment for the telescope and for astronomy. The mission restored the...

Galaxy M100 Comparison of Hubble WFPC1 to WFC3
To commemorate the 25th anniversary of NASA's first astronaut mission to service the Hubble Space Telescope, this video compares the blurry, pre-servicing image taken with Hubble's Wide Field/Planetary Camera 1 in 1993, to an image taken in 2009 with Hubble's newer, Wide Field...
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Last Updated
Mar 28, 2025
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Media
Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov