Astronomers spy Europa blocking distant star – thanks to Gaia25 July 2019 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 starts mapping our galaxy’s bar16 July 2019
Gaia starts mapping our galaxy’s bar16 July 2019 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 launch15 July 2019
Gaia’s biggest operation since launch15 July 2019 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.
Observing Gaia from Earth to improve its star maps02 May 2019 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,...
Gaia clocks new speeds for Milky Way-Andromeda collision07 February 2019
Gaia clocks new speeds for Milky Way-Andromeda collision07 February 2019 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 reveals how Sun-like stars turn solid after their demise09 January 2019 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.