Galaxy Leo IV

Leo IV is one of more than a dozen ultra-faint dwarf galaxies discovered near the Milky Way. These enigmatic galaxies are dominated by dark matter, the invisible substance that makes up most of the universe's mass. Despite containing relatively few visible stars, Leo IV's mass is primarily composed of dark matter, making it a crucial laboratory for studying this mysterious component of the cosmos. As a satellite galaxy of the Milky Way, Leo IV provides astronomers with valuable insights into galaxy formation, dark matter distribution, and the hierarchical assembly of galactic structures in the early universe.