(Phys.org)—A team of astronomers led by Andrés E. Piatti of the Astronomical Observatory of Córdoba in Argentina has recently observed an extra-tidal clumpy structure around the globular cluster NGC 288. The results of these observations, available in a paper published Sept. 21 on arXiv.org, could redefine our understanding of external regions of globular clusters in our Milky Way galaxy.