Gaia is the European Space Agency’s (ESA) major astrometry mission. For more than nine years, Gaia has been taking more than 20 million astrometric and photometric measurements every day and also records over seven million spectra. In June 2022, the third Gaia catalogue with more than 1.8 billion stars was published, making positions, proper motions, parallaxes and many other stellar parameters available to both scientists and the public with unprecedented accuracy. The speaker will introduce the Gaia mission and present some of the scientific findings made possible by Gaia.