Gaia in the UK

Taking the Galactic Census

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Gaia: Astronomers spy Europa blocking distant star – thanks to Gaia

Gaia news - Thu, 2019-07-25 23:27
On 31 March 2017, Jupiter's moon Europa passed in front of a background star – a rare event that was captured for the first time by ground-based telescopes thanks to data provided by ESA's Gaia spacecraft.

Astronomers spy Europa blocking distant star – thanks to Gaia

Gaia mission news - Thu, 2019-07-25 08:00

On 31 March 2017, Jupiter’s moon Europa passed in front of a background star – a rare event that was captured for the first time by ground-based telescopes thanks to data provided by ESA’s Gaia spacecraft.

Gaia: Gaia starts mapping our galaxy’s bar

Gaia news - Tue, 2019-07-16 23:27
The first direct measurement of the bar-shaped collection of stars at the centre of our Milky Way galaxy has been made by combining data from ESA’s Gaia mission with complementary observations from ground- and space-based telescopes.

Gaia starts mapping our galaxy’s bar

Gaia mission news - Tue, 2019-07-16 13:00

The first direct measurement of the bar-shaped collection of stars at the centre of our Milky Way galaxy has been made by combining data from ESA’s Gaia mission with complementary observations from ground- and space-based telescopes.

Gaia’s biggest operation since launch and commissioning

Gaia mission news - Mon, 2019-07-15 14:00

On Tuesday 16 July, teams at ESA’s mission control will perform an ‘orbit change manoeuvre’ on the Gaia space observatory – the biggest operation since the spacecraft was launched in 2013.

Asteroids old and new

Gaia mission news - Fri, 2019-06-28 08:00

A visualisation of the orbits of asteroids observed by ESA’s Gaia satellite, including four recent discoveries

Gaia: Shedding light on white dwarfs – the future of stars like our Sun

Gaia news - Fri, 2019-05-17 23:27
ESA's Gaia mission has been busy mapping our Milky Way galaxy since 2014, and just over one year ago released its second batch of data on more than one billion stars. Since then, astronomers have been exploring this catalogue to reveal a huge amount of new information about the cosmos. One type of object that has seen an abundance of new discoveries is white dwarfs.

Gaia: Observing Gaia from Earth to improve its star maps

Gaia news - Fri, 2019-05-03 00:27
While ESA's Gaia mission has been surveying more than one billion stars from space, astronomers have been regularly monitoring the satellite's position in the sky with telescopes across the world, including the European Southern Observatory in Chile, to further refine Gaia's orbit and ultimately improve the accuracy of its stellar census.

Observing Gaia from Earth to improve its star maps

Gaia mission news - Thu, 2019-05-02 13:00

While ESA’s Gaia mission has been surveying more than one billion stars from space, astronomers have been regularly monitoring the satellite’s position in the sky with telescopes across the world, including the European Southern Observatory in Chile, to further refine Gaia’s orbit and ultimately improve the accuracy of its stellar census.

Gaia’s new asteroids

Gaia mission news - Mon, 2019-04-29 12:40

Space Science Image of the Week: While charting the stars, Gaia also observes asteroids and occasionally spots new ones

Weighing the Milky Way

Gaia mission news - Thu, 2019-03-07 16:24

Measurements from Hubble and Gaia improve our estimate of the mass of our Galaxy: 1.5 trillion solar masses

Gaia: Rethinking everything we thought we knew about star clusters

Gaia news - Tue, 2019-02-26 23:27
ESA's Gaia satellite is on a mission: to map and characterise more than one billion of the stars in the Milky Way. Many of these stars reside in complex, eye-catching clusters scattered throughout our Galaxy and, by studying these stellar groupings, Gaia is revealing much about the formation and evolution of stars in our cosmic home and surroundings.

Gaia: Gaia clocks new speeds for Milky Way-Andromeda collision

Gaia news - Fri, 2019-02-08 00:27
ESA's Gaia satellite has looked beyond our Galaxy and explored two nearby galaxies to reveal the stellar motions within them and how they will one day interact and collide with the Milky Way – with surprising results.

Gaia clocks new speeds for Milky Way-Andromeda collision

Gaia mission news - Thu, 2019-02-07 15:00

ESA’s Gaia satellite has looked beyond our Galaxy and explored two nearby galaxies to reveal the stellar motions within them and how they will one day interact and collide with the Milky Way – with surprising results.

Gaia: Gaia reveals how Sun-like stars turn solid after their demise

Gaia news - Thu, 2019-01-10 02:27
Data captured by ESA's galaxy-mapping spacecraft Gaia has revealed for the first time how white dwarfs, the dead remnants of stars like our Sun, turn into solid spheres as the hot gas inside them cools down.

Gaia reveals how Sun-like stars turn solid after their demise

Gaia mission news - Wed, 2019-01-09 18:00

Data captured by ESA’s galaxy-mapping spacecraft Gaia has revealed for the first time how white dwarfs, the dead remnants of stars like our Sun, turn into solid spheres as the hot gas inside them cools down.

The Universe of Gaia

Gaia mission news - Thu, 2018-12-13 15:38

A taste of the exciting science that is being performed using data from ESA’s Gaia star surveyor, delving into the formation history of our Milky Way

Gaia: Galactic ghosts: Gaia uncovers major event in the formation of the Milky Way

Gaia news - Thu, 2018-11-01 01:27
ESA's Gaia mission has made a major breakthrough in unravelling the formation history of the Milky Way. Instead of forming alone, our Galaxy merged with another large galaxy early in its life, around 10 billion years ago. The evidence is littered across the sky all around us, but it has taken Gaia and its extraordinary precision to show us what has been hiding in plain sight all along.

Galactic ghosts: Gaia uncovers major event in the formation of the Milky Way

Gaia mission news - Wed, 2018-10-31 18:00

ESA’s Gaia mission has made a major breakthrough in unravelling the formation history of the Milky Way. 

Gaia: Gaia spots stars flying between galaxies

Gaia news - Tue, 2018-10-02 23:27
A team of astronomers using the latest set of data from ESA's Gaia mission to look for high-velocity stars being kicked out of the Milky Way were surprised to find stars instead sprinting inwards – perhaps from another galaxy.

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