Tag Archive for 'Gaia-Sausage-Enceladus'

This image visualizes our Milky Way Galaxy and its surrounding halo of stars. The new Gaia data reveal that the wrinkles we see in the Milky Way were likely caused by a dwarf galaxy colliding with the Milky Way around 2.7 billion years ago. Our Galaxy’s two prominent satellite galaxies -- the Large and Small Magellanic Clouds -- are visible to the lower right, Image credit: ESA / Gaia / DPAC / Donlon et al. / Stefan Payne-Wardenaar.

Milky Way’s Last Major Merger Occurred Billions of Years Later than Previously Thought

Jun 7, 2024 by News Staff

This discovery was made possible by ESA’s Gaia spacecraft, which is mapping more than a billion stars throughout the Milky Way Galaxy and beyond, tracking...

This artist’s illustration emphasizes the shape of the stellar halo surrounding our Milky Way Galaxy. Image credit: Melissa Weiss / Harvard & Smithsonian’s Center for Astrophysics.

Milky Way’s Stellar Halo is Oblong and Tilted, Astronomers Say

Nov 21, 2022 by News Staff

Accounting for approximately 1% of the total stellar mass, the stellar halo — the diffuse cloud of stars surrounding the Galactic disk — plays...