Loading…
Loading content
Loading…
Loading contentRibbons of stars strung out across the halo, torn from dwarf galaxies and globular clusters as the Milky Way's tides pull them apart. The great Sagittarius stream wraps entirely around the Galaxy; mapped in their dozens by Gaia, these streams trace the shape of the dark-matter halo and record the Galaxy's past meals.
Facts on this topic will be cited from these primary and reference sources.
Southern-hemisphere observatory data and imagery (VLT, ALMA partner).