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ESA vodcast 'Charting the Galaxy - from Hipparcos to Gaia' part 1

Date- Oct 09 Source- http://astronomy2009.esa.int/science-e/www/object/index.cfm?fobjectid=44686 'In this sixth episode of the [email protected] vodcast series Rebecca Barnes discovers the motions of the stars, learns how astronomers measure their distances and looks at the new European mission that will really get to grips with our place in the Universe.'
Length: 09:43

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