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Gaia technology

Gaia technology

Date: 03 November 2013
Copyright: ESA

Our Galaxy, the Milky Way, is made up of a hundred billion stars. To truly understand its evolution we need to know exactly where we stand in this mass of constantly moving and changing celestial objects. To do this, astrometry, the science of measuring the position, distance and movement of stars around us, is just about to take a giant leap forward with ESA's new space telescope, Gaia. Gaia will measure a billion stars of our Milky Way.

Last Update: 1 September 2019
9-Aug-2022 22:53 UT

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