Gaia in the UK

Taking the Galactic Census

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Gaia: Gaia status update: safe mode and recovery

Gaia news - Thu, 2018-03-22 01:27
Last month, ESA's Gaia satellite experienced a technical anomaly followed by a 'safe mode' event. After thorough examination, the spacecraft was successfully recovered and resumed normal scientific operations, while the mission team keeps investigating the exact cause of the anomaly.

Gaia: Chasing a stellar flash with assistance from Gaia

Gaia news - Wed, 2018-02-28 02:27
Last year, ESA's Gaia mission helped astronomers make unique observations of Neptune's largest moon, Triton, as it passed in front of a distant star. This is a preview of the superb quality and versatility of the Gaia data that will be released in April.

Hidden cluster revealed

Gaia mission news - Mon, 2018-01-29 15:30

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

Gaia: Save the date: Gaia's second data release set for 25 April

Gaia news - Fri, 2018-01-26 04:27
Following the release of the first catalogue in 2016, ESA's Gaia mission will publish its long-awaited map of more than 1 billion stars in our Galaxy on 25 April 2018.

Gaia: Gaia's view of our galactic neighbours

Gaia news - Thu, 2017-12-14 01:27
Measuring the positions and motions of more than a billion stars, ESA's Gaia mission will refine our knowledge about our place in the Universe, providing the best ever star chart of our Milky Way and its neighbouring galaxies.

Two tales of one galaxy

Gaia mission news - Wed, 2017-12-13 13:50

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

Gaia: Stellar motions in nearby galaxy hint at underlying dark matter

Gaia news - Tue, 2017-12-05 07:40
By pinning down, for the first time, the three-dimensional motions of individual stars in the nearby Sculptor dwarf galaxy, astronomers have shed new light on the distribution of invisible dark matter that pervades the galaxy. This study combined the positions of stars measured by ESA's Gaia mission with observations from the NASA/ESA Hubble Space Telescope taken twelve years earlier.

Gaia: How do you find a star cluster? Easy, simply count the stars

Gaia news - Tue, 2017-12-05 07:40
It's the perfect meeting of old and new. Astronomers have combined the latest data from ESA's Gaia mission with a simple analysis technique from the 18th century to discover a massive star cluster that had previously escaped detection. Now, subsequent investigations are helping reveal the star-forming history of our Galaxy, the Milky Way.

Gaia: Gaia data help prepare for a rare celestial alignment of Neptune's largest moon

Gaia news - Wed, 2017-10-04 01:27
On 5 October 2017, the largest moon of Neptune will pass in front of a distant star. This rare event will temporarily block the star's light from Earth and provide an excellent opportunity to study the moon's intriguing atmosphere. Data from ESA's Gaia mission is allowing astronomers to precisely plan their observations.

Gaia: Close encounters of the stellar kind

Gaia news - Fri, 2017-09-01 00:27
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.

Close encounters of the stellar kind

Gaia mission news - Thu, 2017-08-31 08:00

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.

Gaia: Sneak peek of Gaia's sky in colour

Gaia news - Wed, 2017-08-16 23:27
While surveying the positions of over a billion stars, ESA's Gaia mission is also measuring their colour, a key diagnostic to study the physical properties of stars. A new image provides a preview of Gaia's first full-colour all-sky map, which will be unleashed in its highest resolution with the next data release in 2018.

Sneak peek in colour

Gaia mission news - Wed, 2017-08-16 08:46

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

Gaia: Artificial brain helps Gaia catch speeding stars

Gaia news - Tue, 2017-06-27 01:27
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 Way.

Artificial brain helps Gaia catch speeding stars

Gaia mission news - Mon, 2017-06-26 08:00

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 Way. 

Gaia: The future of the Orion constellation

Gaia news - Sat, 2017-06-10 01:27
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.

The future of the Orion constellation

Gaia mission news - Fri, 2017-06-09 09:00

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: Gaia's snapshot of another galaxy

Gaia news - Fri, 2017-04-21 00:27
While compiling an unprecedented census of one billion stars in our Galaxy, ESA's Gaia mission is also surveying stars beyond our Milky Way. A new image of M33, also known as the Triangulum galaxy, shows tens of thousands of stars detected by Gaia, including a small stellar census in its star-forming region NGC 604. This is a striking example of the mission's potential to detect and characterise stars in nearby galaxies.

Gaia: Two million stars on the move

Gaia news - Thu, 2017-04-13 00:27
The changing face of our Galaxy is revealed in a new video from ESA’s Gaia mission. The motion of two million stars is traced 5 million years into the future using data from the Tycho-Gaia Astrometric Solution, one of the products of the first Gaia data release. This provides a preview of the stellar motions that will be revealed in Gaia's future data releases, which will enable scientists to investigate the formation history of our Galaxy.

Gaia: Gaia turns its eyes to asteroid hunting

Gaia news - Wed, 2017-01-25 00:27
Whilst best known for its surveys of the stars and mapping the Milky Way in three dimensions, ESA's Gaia has many more strings to its bow. Among them, its contribution to our understanding of the asteroids that litter the Solar System. Now, for the first time, Gaia is not only providing information crucial to understanding known asteroids, it has also started to look for new ones, previously unknown to astronomers.

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