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| IAU logo | IAU logo | Norio Kaifu and Xi Jinping | Robert Williams presentation |
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| Norio Kaifu, IAU President | Closing Ceremony of the IAU General Assembly 2012 | An exoplanet seen from its moon (artist's impression) | Signing of the Memorandum of Understanding between UNESCO and the IAU |
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| Excellence in Astronomy Education and Public Outreach | Star Party | The violent youth of solar proxies | Mosaic image of Titan |
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| 100 Hours of Astronomy: Observing the sky | IAU 2006 General Assembly: Result of the IAU Resolution Votes | IAU 2006 General Assembly: Result of the IAU Resolution Votes | Closing Ceremony at IAU General Assembly 2009 |
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| Closing Ceremony at IAU General Assembly 2009 | Closing Ceremony at IAU General Assembly 2009 | Closing Ceremony at IAU General Assembly 2009 | UNESCO and IAU |
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| Official opening of the International Year of Astronomy 2009 at UNESCO | IAU President Catherine Cesarsky opening the International Year of Astronomy 2009 | Memorandum of Understanding between UNESCO and IAU | Illustration of the dwarf planet Makemake |
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| A couple enjoys watching the night sky | The IAU draft definition of "planet" and "plutons" | The Portal to the Universe | UNESCO Headquarters in Paris |
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| Stonehenge - an existing UNESCO Heritage site | Plutoids | Voting on the IAU Resolution on the plan "Astronomy for the Developing World" | Wendy Freedman, 2009 Gruber Cosmology Prize recipient |
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![Three new planets? [artist's impression]](/static/archives/images/thumbs/iau0601b.jpg) |
![Planet candidates in the Solar System [artist's impression]](/static/archives/images/thumbs/iau0601c.jpg) |
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| Teachers at a workshop | Three new planets? [artist's impression] | Planet candidates in the Solar System [artist's impression] | UNAWE activity in India, July 2011 |
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| Robert Kennicutt, 2009 Gruber Cosmology Prize recipient | Jeremy Mould, 2009 Gruber Cosmology Prize recipient | Word Cloud for the International Year of Astronomy 2009 Final Report | Moon through the Galileoscope |
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| IAU 2006 General Assembly: Result of the IAU Resolution Votes | 100 Hours of Astronomy | 24-hour webcast from the largest telescopes | The International Year of Astronomy 2009 Welcomes the 100th Participating Country |
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| IAU 2006 General Assembly: Result of the IAU Resolution Votes | IAU 2006 General Assembly: Result of the IAU Resolution Votes | IAU 2006 General Assembly: Result of the IAU Resolution Votes | IAU 2006 General Assembly: Result of the IAU Resolution Votes |
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| The International Year of Astronomy 2009 in numbers. | The new IAU Officers 2009 | Galilean Nights will see countless people looking up at the skies | Aerial View of the Hawaii Convention Center at night |
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