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          A chronology of the Hubble Space Telescope Illustrates the mission's history from conception through its 25 years of ground-breaking observations and discoveries.
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          Spiral Galaxy NGC 2841
          Spiral Galaxy NGC 2841
          Release date: February 17, 2011

          NASA's Hubble Space Telescope reveals a majestic disk of stars and dust lanes in this view of the spiral galaxy NGC 2841, which lies 46 million light-years...

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          HubbleSite press release
          Historical Context
          MESSENGER goes into orbit around Mercury
          MESSENGER goes into orbit around Mercury
          March 17, 2011

          MESSENGER is the first spacecraft to orbit the planet Mercury. In the course of the one-year primary mission, the spacecraft's seven scientific instruments...

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          NASA Mission: MESSENGER
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          Interacting Galaxies Arp 273
          Interacting Galaxies Arp 273
          Release date: April 20, 2011

          Arp 273 is a photogenic pair of interacting galaxies. The larger of the spiral galaxies, known as UGC 1810, has a disk that is tidally distorted into a...

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          HubbleSIte press release
          Milestone Release
          One-millionth science observation
          One-millionth science observation
          Release date: July 4, 2011

          The observatory logged its one-millionth science observation during a search for water in an exoplanet's atmosphere. Rather than an image, the exposure is a...

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          HubbleSite press release
          Historical Context
          Landing of the last space shuttle mission
          Landing of the last space shuttle mission
          July 21, 2011

          STS-135 marked the final chapter in the 30-year history of space shuttle flights. On July 8, 2011 Space shuttle Atlantis had made its final liftoff from...

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          NASA Space Shuttle Era
          Historical Context
          Juno is headed to Jupiter
          Juno is headed to Jupiter
          August 05, 2011

          An Atlas V rocket lofted the Juno spacecraft toward Jupiter from Space Launch Complex-41. The 4-ton Juno spacecraft will take five years to reach Jupiter on...

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          NASA Mission: Juno
          Science Discovery
          Supersonic jets from young stars
          Supersonic jets from young stars
          Release date: August 31, 2011

          These glowing, clumpy streams of material are the signposts of star birth. Ejected episodically by young stars, the blobby material, called Herbig-Haro or HH...

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          HubbleSite press release
          Historical Context
          Hubble observations contribute to research honored with the Nobel Prize in Physics
          Hubble observations contribute to research honored with the Nobel Prize in Physics
          October 4, 2011

          Adam Riess, an astronomer at the Space Telescope Science Institute and Krieger-Eisenhower professor in physics and astronomy at The Johns Hopkins University...

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          NASA press release
          Milestone Release
          10,000 Hubble science papers
          10,000 Hubble science papers
          Release date: December 6, 2011

          The 10,000th science paper based on Hubble observations is published, making Hubble one of the most prolific astronomical endeavors in history.

          CREDIT:...

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          HubbleSite press release
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          Star-Forming Region S106
          Star-Forming Region S106
          Release date: December 15, 2011

          The outstretched "wings" of the bipolar star-forming region called Sharpless 2-106 record the contrasting imprint of heat and motion against the backdrop of...

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          HubbleSite press release
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