in 2008, Hubble observed a third red spot alongside Jupiter's famous Great Red Spot and the smaller Red Spot Jr. in the giant planet's turbulent atmosphere: flickr.com/photos/nasahubble/4

During Servicing Mission 4, a professional photographer was given behind-the-scenes access during astronaut training, prepping the shuttle NASAKennedy, and inside mission control during the flight. See some of the amazing photos in our new Flickr album: …

in 2009, astronauts aboard the Space Shuttle Atlantis bid farewell to Hubble as they released it back into space after completing five spacewalks to repair and upgrade the orbiting observatory. flickr.com/photos/nasahubble/2

in 2009, at the end of the final Hubble servicing spacewalk, astronaut John Grunsfeld (SciAstro) gave the telescope a pat and said, "One last handshake with Mr. Hubble from me."

in 2009, astronauts John Grunsfeld & Drew Feustel install additional insulation on Hubble, called New Outer Blanket Layers, which help protect the telescope and regulate its temperature as it passes in and out of sunlight.

in 2009, astronauts Drew Feustel & John Grunsfeld replace a fine guidance sensor with a refurbished one that was removed from the telescope in 1999 and upgraded. The fine guidance sensors help Hubble point and lock on to its targets.

in 2009, astronauts John Grunsfeld & Drew Feustel (SciAstro & Astro_Feustel) replace some of Hubble's original batteries with new ones, which help the spacecraft store energy collected by its solar panels. flickr.com/photos/nasahubble/2

in 2009, astronauts John Grunsfeld & Drew Feustel begin the final spacewalk of Hubble's last servicing mission. Their goals include installing new batteries, insulation panels, and an enhanced sensor to track the stars.

in 2009, astronauts Mike Massimino & Mike Good finish a complicated repair of the Space Telescope Imaging Spectrograph, after having to break off a handrail with a stripped bolt that wouldn't come out & then removing 111 tiny screws.

in 2009, astronauts Mike Massimino (Astro_Mike) & Mike Good begin the 4th spacewalk of Hubble's last servicing mission. Their main goal is to fix the Space Telescope Imaging Spectrograph, which suffered a power failure in 2004.

Today, astronauts from Hubble's 4th Servicing Mission visited airandspace to celebrate the 10th anniversary of this historic spaceflight.

in 2009, astronauts John Grunsfeld & Drew Feustel complete a job never intended to be done in space: repairing Hubble's Advanced Camera for Surveys. The camera had stopped working in 2007 when a power supply short circuited.

in 2009, astronauts John Grunsfeld (SciAstro) & Drew Feustel (Astro_Feustel) install the Cosmic Origins Spectrograph, the most sensitive spectrograph ever flown on Hubble. flickr.com/photos/nasahubble/3

in 2009, astronauts John Grunsfeld & Drew Feustel remove COSTAR (Corrective Optics Space Telescope Axial Replacement), which corrected Hubble's vision since 1993. It's no longer needed because all of Hubble's instruments now have a correction built …

The irregular galaxy NGC 4485 shows all the signs of having been involved in a hit-and-run accident with a bypassing galaxy. Rather than destroying the galaxy, the chance encounter is spawning a new generation of stars, and presumably planets: …

in 2009, astronauts John Grunsfeld & Drew Feustel begin the 3rd spacewalk of Hubble's last servicing mission. Their goals: install a new science instrument & perform the first-ever in-orbit repair of a camera never meant to be fixed in space.

in 2009, astronaut Mike Good replaces one of Hubble's original battery units with a new one. These batteries allow the solar-powered observatory to store energy for use when Hubble is in Earth's shadow. flickr.com/photos/nasahubble/2

in 2009, astronauts Mike Massimino (Astro_Mike) and Mike Good finish installing four new gyroscopes and two refurbished ones. The fresh gyroscopes will help Hubble accurately lock onto celestial targets for years to come.

in 2009, astronauts Mike Massimino (Astro_Mike) and Mike Good begin the 2nd spacewalk of Hubble's last servicing mission. Their goal is to install new gyroscopes and batteries on the spacecraft. flickr.com/photos/nasahubble/2

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