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Sat Dec 8, 2018, 02:20 PM

This Galaxy Pic from the Hubble Telescope Shows How Astronauts Fixed Its Vision 25 Years Ago


By Samantha Mathewson, Space.com Contributor | December 7, 2018 02:35 pm ET

NASA released a stunning new comparison photo to celebrate the anniversary of the first astronaut mission to repair the Hubble Space Telescope's blurry vision, 25 years ago.

Shortly after the space telescope launched, in 1990, NASA discovered a manufacturing flaw in the observatory's primary mirror, and this affected the clarity of the telescope's early images. During a shuttle mission in 1993, astronauts completed a spacewalk to install a replacement instrument to bring Hubble's view back into focus.

In honor of the mission's 25th anniversary, this newly released comparison photo captures three views of the central region of the spiral galaxy M100, which is located about 55 million light-years from Earth. [The Hubble Space Telescope: A 25th Anniversary Photo Celebration]

The image on the left was taken using the Wide Field and Planetary Camera 1, before astronauts swapped out the camera with the vision-corrected Wide Field and Planetary Camera 2, according to a statement from NASA.

More:
https://www.space.com/42668-nasa-celebrates-25-anniversary-hubble-repair.html?utm_source=notification

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Reply This Galaxy Pic from the Hubble Telescope Shows How Astronauts Fixed Its Vision 25 Years Ago (Original post)
Judi Lynn Saturday OP
GemDigger Saturday #1
still_one Saturday #2
Victor_c3 Saturday #3

Response to Judi Lynn (Original post)

Sat Dec 8, 2018, 02:29 PM

1. The gift that keeps on giving. nt

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Response to Judi Lynn (Original post)

Sat Dec 8, 2018, 02:39 PM

2. details, details

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Response to Judi Lynn (Original post)

Sat Dec 8, 2018, 03:22 PM

3. That is one incredible piece of equipment

I just read the entire Wikipedia entry about the Hubble telescope. The amount of work and thought that went into the program is incredible.

Much of the Hubble was initially put together with technology from the late 70s and early 80s. Computers were upgraded during varioys service missions. Iím chomping at the bit to see what the James Webb Telescope will do for research. A couple of decades worth of technology innovation will undoubtedly create a revolutionary instrument.

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