This is a Hubble Space Telescope image of a concentration of stars within the globular cluster NGC 6752. Hidden among the stars is an image of a background galaxy that is much farther away. The diminutive galaxy, named by its discoverers as Bedin 1, measures only around 3,000 light-years at its greatest extent — a fraction of the size of the Milky Way. Not only is it tiny, but it is also incredibly faint. These properties led astronomers to classify it as a dwarf spheroidal galaxy that is as old as the universe.
NASA, ESA, and L. Bedin (Astronomical Observatory of Padua, Italy)
2019-01-31
<a rel="nofollow" class="external free" href="http://hubblesite.org/image/4317/news_release/2019-09">http://hubblesite.org/image/4317/news_release/2019-09</a>