Australasian Science: Australia's authority on science since 1938

Alien Clusters Infiltrate Galaxy

By Stephen Luntz

The Milky Way is filled with stars that arrived as part of captured formations. Now an Australian/Canadian study has concluded that one-quarter of the globular clusters that ring the galaxy come from dwarf galaxies. Globular clusters are spherical islands of stars, usually a few hundred thousand strong, sitting offshore of galaxies like pilot fish around sharks.