Summary:

- The Gaia mission, a space observatory launched by the European Space Agency (ESA) in 2013, has completed its science operations after nearly 10 years of service.
- Gaia's primary goal was to create the most accurate and comprehensive 3D map of the Milky Way galaxy, including the positions, motions, and properties of over a billion stars.
- The mission has provided unprecedented data that has enabled numerous scientific discoveries, including the mapping of the Milky Way's structure, the detection of new dwarf galaxies, and the identification of new classes of variable stars.