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ESA > Our Activities > Space Science > Gaia

Gaia’s first sky map

ESA’s Gaia mission has published its first catalogue of a billion stars

Hidden cluster revealed

Space Science Image of the Week: Next to the brightest star in the night sky lies a cluster of stars discovered by ESA’s Gaia satellite

Two tales of one galaxy

Explore the stars in our galactic neighbour, the Large Magellanic Cloud, as viewed by ESA’s Gaia satellite

Sneak peek in colour

A preview of Gaia’s sky in colour provides a taste of the full-colour map of more than a billion stars that will be released next year

Star mapper

Space Science Image of the Week: Explore the sky with this new visualisation using data from ESA’s Hipparcos mission

Inside Gaia’s camera

How Gaia’s billion-pixel camera will study a billion stars

Gaia back in time

Step back in time and explore the Gaia mission’s historical roots with our new series of articles on the history of astrometry, the ancient science of charting the sky

Guide to our Galaxy

Take a virtual journey from the centre to the outskirts of the Milky Way

Latest News

Call for media: Second data release from ESA's Gaia mission19 April 2018

Call for media: Second data release from ESA's Gaia mission19 April 2018 Media representatives are invited to a briefing on the second data release of ESA's Gaia mission, an astrometry mission to map more than one billion stars in our Galaxy, the Milky Way.

Close encounters of the stellar kind31 August 2017

Close encounters of the stellar kind31 August 2017 The movements of more than 300 000 stars surveyed by ESA’s Gaia satellite reveal that rare close encounters with our Sun might disturb the cloud of comets at the far reaches of our Solar System, sending some towards Earth in the distant future.

Artificial brain helps Gaia catch speeding stars26 June 2017

Artificial brain helps Gaia catch speeding stars26 June 2017 With the help of software that mimics a human brain, ESA’s Gaia satellite spotted six stars zipping at high speed from the centre of our Galaxy to its outskirts. This could provide key information about some of the most obscure regions of the Milky Wa...

The future of the Orion constellation09 June 2017

The future of the Orion constellation09 June 2017 A new video, based on measurements by ESA’s Gaia and Hipparcos satellites, shows how our view of the Orion constellation will evolve over the next 450 000 years.

Gaia’s billion-star map hints at treasures to come14 September 2016

Gaia’s billion-star map hints at treasures to come14 September 2016 The first catalogue of more than a billion stars from ESA’s Gaia satellite was published today – the largest all-sky survey of celestial objects to date.

Watch Gaia first data release media briefing12 September 2016

Watch Gaia first data release media briefing12 September 2016 Replay of the media briefing on the first data release from ESA’s Gaia mission on 14 September.

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