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 ...

Gaia’s all-sky view of our Milky Way galaxy and neighboring galaxies, based on measurements of nearly 1.7 billion stars in the mission’s first two years of taking data.

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.

Astronomers bid an emotional farewell to Gaia, expressing their gratitude for its more than decade-long mission that gave us groundbreaking insights into our home galaxy, the Milky Way.

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 ...

With the third data release of the European Space Agency's Gaia space mission, astronomers gained access to improved measurements for 1.8 billion stars, which provides a vast amount of data for ...

Ga­ia’s im­age of the Milky Way ESA/Gaia/DPAC, CC BY-SA 3.0 IGO. The European Space Agency (ESA) has released the most detailed catalog of our galaxy, using data from the Gaia mission launched ...

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. Lee Billings.

Large-scale map (330,000 light years side length) of the density of the 217 million stars from the Gaia DR3 XP sample in Galactocentric Cartesian co-ordinates.

Video: Gaia data release 3: exploring our multidimensional Milky Way Jun 13, 2022 Astronomers build a 3D map of dust within thousands of light-years ...