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Join astronaut John Grunsfeld (SciAstro) and EVA engineer Ed Rezac in this episode of Hubble Tool Time to learn about developing a wrench-like connector tool to replace Hubble’s Power Control Unit on Servicing Mission 3B in 2002. …

in 2009, astronauts John Grunsfeld (SciAstro) & Drew Feustel (Astro_Feustel) begin the 1st spacewalk of Hubble's last servicing mission. Their main goals are to install a new camera, a replacement computer, & a docking mechanism on Hubble.

in 2009, astronaut Megan McArthur uses the space shuttle's robotic arm to capture Hubble, as both the shuttle and Hubble orbit over Australia at more than 17,000 miles per hour. flickr.com/photos/nasahubble/4

in 2009, the crew of Space Shuttle Atlantis spots Hubble in the distance as the shuttle closes in on the orbiting telescope. flickr.com/photos/nasahubble/3

in 2009, astronaut Mike Massimino (Astro_Mike) sends the very first tweet from space.

Happy Mother's Day to all the moms out there including the late Nancy Grace Roman, also known as the "Mother of Hubble." go.nasa.gov/2vOHUY6

Ten years ago, Hubble's Servicing Mission 4 took place, becoming the most ambitious and complicated to date. To celebrate that important moment in history, NASA has gathered and archived hours of footage from Servicing Mission 4 for all to use: …

in 2009, Space Shuttle Atlantis launches from Kennedy Space Center with seven astronauts prepared to rendezvous with and repair the Hubble Space Telescope one last time. flickr.com/photos/nasahubble/2

On May 11, 2009, the brave crew of Space Shuttle Atlantis lifted off to make Hubble more powerful than ever before. Servicing Mission 4 was the most ambitious and complicated to date. To learn more about this historic mission: …

On May 11, 2009, seven astronauts launched aboard Space Shuttle Atlantis to begin the final Hubble servicing mission. Over the next 13 days, we’ll live tweet significant events from that mission at the same time they happened 10 years ago. Follow along w…

Just as ancient paintings can tell us about the period of history in which they were painted, so too can ancient galaxies tell us about the era of the universe in which they existed. To learn more about galaxy cluster SPT0615: …

In 1877, Edouard Stephan discovered a tight visual grouping of five galaxies. The galaxies of Stephan's Quintet are both overlapping and interacting, and have become the most famous among the compact groups of galaxies. Fly through Stephan's Quintet: …

In 1877, Edouard Stephan discovered a tight visual grouping of five galaxies. The galaxies of Stephan's Quintet are both overlapping and interacting, and have become the most famous among the compact groups of galaxies. Fly through Stephen's Quintet: …

It's ! Join astronaut John Grunsfeld (sciastro) and EVA engineer Ed Rezac to learn about the difficult job of replacing Hubble’s Rate Sensor Units on Servicing Mission 3A in 1999 and the resulting tool created to make the job easier: …

This is the last "pretty picture" the Wide Field and Planetary Camera 2 took before it was removed from Hubble in May 2009. It shows a planetary nebula (clouds of gas shed by a dying star) known as Kohoutek 4-55 (named after its discoverer…

Few of the universe’s residents are as iconic as the spiral galaxy. This beauty, NGC 2903, is located about 30 million light-years away and was studied as part of a Hubble survey of the central regions of roughly 145 nearby disk galaxies: …

This is the new Hubble Legacy Field. Take a look at the largest and most comprehensive "history book" of galaxies into one single image, using 16 years' worth of observations from Hubble: go.nasa.gov/2vye21U

NASAGoddard Happy 60th, NASAGoddard! From the excitement of servicing missions to the day-to-day operations of the spacecraft, Goddard has always been a part of the Hubble mission, and will continue to be for years to come. 🎈

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