New supercomputer simulations suggest the Milky Way could be surrounded by dozens more faint, undetected satellite ...

Astronomers have been aware of cosmic vampires, dead stars that hungrily strip plasma from victim stars, for some time. New ...

The Gaia mission of the European Space Agency (ESA) has officially ceased its scientific operations after 12 years of service. This spacecraft, dedicated to mapping the Milky Way, has exhausted its ...

Gaia, Europe’s Galactic Cartographer, Is Gone But Not Forgotten Gaia, Europe’s Milky Way–mapping spacecraft, shut down earlier this year. It was arguably the most important—and most ...

The Milky Way’s halo of stars as seen by Gaia (left), and how it would look if a merger happened in the ancient past. Image: Halo stars: ESA/Gaia/DPAC, T Donlon et al. 2024; Background Milky Way ...

The European Space Agency's Milky Way-mapper Gaia has completed the sky-scanning phase of its mission, racking up more than 3 trillion observations of about 2 billion stars and other objects over ...

It is possible dark matter has something to do with this. The researchers used Gaia data to date objects within the Milky Way that originated in smaller galaxies that had previously been swallowed.

After 11 years mapping the Milky Way, the European Space Agency's Gaia space telescope has retired. Scientists hailed it as "the discovery machine of the decade." ...

The Gaia DR3 results unveiled an unexpected amount of starquakes, even in stars that shouldn't have them, giving ESA and astronomers a new mystery to decipher.

Gaia BH3 is the most massive stellar black hole found to date in the Milky Way. The radii of the black holes are directly proportional to their masses, but note that the black holes themselves ...

A sharper view of the Milky Way with Gaia and machine learning by Janine Fohlmeister, Leibniz Institute for Astrophysics Potsdam Editors' notes ...

Gaia, Europe’s Milky Way–mapping spacecraft, shut down earlier this year. It was arguably the most important—and most overlooked—astronomy project of the 21st century ...