Gaia is a space observatory of the European Space Agency (ESA) that was launched in 2013 and is planned to operate until March 2025.

Gaia is creating an extraordinarily precise three-dimensional map of nearly two billion objects throughout our Galaxy and beyond, mapping their motions, luminosity, temperature and composition.

2024年11月3日 · Gaia, the Global Astrometric Interferometer for Astrophysics, is a European Space Agency astronomical observatory mission. Its goal is to create the largest, most precise three-dimensional map of the Milky Way by surveying about 1% of the galaxy’s 100 billion stars.

2025年1月15日 · Night has fallen for the star-tracking European Space Agency (ESA) spacecraft, Gaia. The mission, which has been mapping the Milky Way for the last 12 years, shut down science operations on ...

2013年12月19日 · Gaia is creating an extraordinarily precise three-dimensional map of more than a thousand million stars throughout our Milky Way galaxy and beyond, mapping their motions, luminosity, temperature and composition.

2025年1月17日 · The European Space Agency’s Milky Way-mapping space mission Gaia, which involves UCL researchers, has completed its sky-scanning phase, racking up more than three trillion observations of two billion stars and other objects over a …

Thanks to ESA's star mapping spacecraft Gaia and machine learning, astronomers have discovered 12 quasars whose light is so strongly deflected by foreground galaxies that they are each visible as four distinct images, called an 'Einstein cross'.

2023年12月19日 · ESA’s Gaia space telescope was launched on 19 December 2013 and has been surveying the skies since 2014. In this time, the mission has flipped our understanding of the Milky Way on its head, unveiling its shape and structure and revealing how mergers have affected the stars that call our galaxy home.

2022年6月13日 · The Gaia space telescope creates the most comprehensive map of the Milky Way, allowing astronomers to study our galaxy's distant past, as well as its future.

6 天之前 · The best Milky Way map, by Gaia: This is a new artist’s impression of our galaxy, the Milky Way, based on data from ESA’s Gaia space telescope. Credit: ESA/Gaia/DPAC, Stefan Payne-Wardenaar Mapping the Milky Way. Gaia has been charting the positions, distances, movements, brightness changes, composition and numerous other characteristics of ...