Countdown to launch of ESA’s billion-star surveyor

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ESA’s billion-star surveyor Gaia will be launched from Europe’s spaceport in Kourou on 20 November to begin a five-year mission to map the stars with unprecedented precision.

via ESA Space Science

http://www.esa.int/Our_Activities/Space_Science/Gaia/Countdown_to_launch_of_ESA_s_billion-star_surveyor