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Updated: 1 year 10 months ago

Gaia: Gaia untangles the starry strings of the Milky Way

Wed, 2019-08-28 22:27
Rather than leaving home young, as expected, stellar 'siblings' prefer to stick together in long-lasting, string-like groups, finds a new study of data from ESA's Gaia spacecraft.

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

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.

Gaia: Gaia starts mapping our galaxy’s bar

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

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

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.

Gaia: Rethinking everything we thought we knew about star clusters

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

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

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

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.

Gaia: Gaia spots stars flying between galaxies

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.

Gaia: Gaia finds candidates for interstellar 'Oumuamua's home

Wed, 2018-09-26 01:27
Using data from ESA's Gaia stellar surveyor, astronomers have identified four stars that are possible places of origin of 'Oumuamua, an interstellar object spotted during a brief visit to our Solar System in 2017.

Gaia: Gaia hints at our Galaxy's turbulent life

Wed, 2018-09-19 23:27
ESA's star mapping mission, Gaia, has shown our Milky Way galaxy is still enduring the effects of a near collision that set millions of stars moving like ripples on a pond.

Gaia: Infant exoplanet weighed by Hipparcos and Gaia

Tue, 2018-08-21 01:27
The mass of a very young exoplanet has been revealed for the first time using data from ESA's star mapping spacecraft Gaia and its predecessor, the quarter-century retired Hipparcos satellite.

Gaia: Gaia creates richest star map of our Galaxy – and beyond

Thu, 2018-04-26 00:27
ESA's Gaia mission has produced the richest star catalogue to date, including high-precision measurements of nearly 1.7 billion stars and revealing previously unseen details of our home Galaxy.

Gaia: Gaia's surprising discoveries: From the Sun's neighbourhood to the distant Universe

Sat, 2018-04-21 01:27
Gaia's first data release was not designed to be a full database with which major scientific discoveries could be made. Instead it was foreseen much more as a set of test data that astronomers could practice on and get ready for the second release from ESA's billion-star surveyor – the one that would feature a billion parallaxes and proper motions of stars.

Gaia: Gaia’s surprising discoveries: Scrutinising the Milky Way

Sat, 2018-04-21 01:27
The first data release of ESA's Gaia satellite provided a surprising number of scientific results. Yet it is nothing but a tease for what is expected from the second data release, scheduled for 25 April.

Gaia: Call for media: Second data release from ESA's Gaia mission

Thu, 2018-04-19 22:27
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. The media briefing is being organised by ESA at the ILA Berlin Air and Space Show in Germany, on Wednesday 25 April 2018, 11:00–12:15 CEST. The show opens at 10:00 CEST.

Gaia: How many stars to expect in Gaia's second data release

Thu, 2018-04-05 23:27
As astronomers worldwide are preparing to explore the second data release of ESA's Gaia satellite, the Data Processing and Analysing Consortium announced just how many sources will be included in the new catalogue, which will be made public on 25 April.

Gaia: Gaia's view of dark interstellar clouds

Wed, 2018-04-04 04:27
While charting the positions of more than a billion stars, ESA's Gaia mission provides all-important information even about the dark patches of the sky where fewer stars are observed. These images, based on Gaia's first data release, are an appetizer to the astronomical riches that will be unleashed with the mission's second release on 25 April.

Gaia: Gaia status update: safe mode and recovery

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.