ESA title

The mission

Gaia will create an extraordinarily precise three-dimensional map of more than a thousand million stars throughout our Milky Way galaxy and beyond, mapping their motions, luminosity, temperature and composition. This huge stellar census will provide the data needed to tackle an enormous range of important questions related to the origin, structure and evolutionary history of our galaxy.

Launch: 19 December 2013

Orbit: L2 Lagrangian point

Data release milestones:
Data Release 1: 14 September 2016
Data Release 2: 25 April 2018
Early Data Release 3: 3 December 2020

Next milestone:
Data Release 3: 13 June 2022

Gaia

Latest

The colour of the sky from Gaia’s Early Data Release 3
Science & Exploration

Gaia finds parts of the Milky Way much older than expected

23/03/2022 15891 views 128 likes
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Gaia snaps photo of Webb
Science & Exploration

Gaia snaps photo of Webb at L2

16/03/2022 16137 views 121 likes
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Science & Exploration

Gaia reveals that most Milky Way companion galaxies are new…

24/11/2021 8570 views 155 likes
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Science & Exploration

Is the nearest star cluster to the Sun being destroyed?

24/03/2021 16538 views 122 likes
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Gaia’s stellar motion for the next 400 thousand years
Science & Exploration

Gaia’s new data takes us to the Milky Way’s anticentre and …

03/12/2020 113356 views 382 likes
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Science & Exploration

The density of stars from Gaia’s Early Data Release 3

03/12/2020 11625 views 149 likes
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The density of stars from Gaia’s Early Data Release 3

About Gaia