
The Sombrero Galaxy (M104) is an edge-on spiral whose brilliant white core and thick, encircling dust lane make it look uncannily like a wide-brimmed Mexican hat — one of the most recognizable galaxies in the sky. Famous for harboring a billion-solar-mass supermassive black hole and roughly 2,000 globular clusters (about ten times the Milky Way's haul), it sits at the southern edge of the Virgo galaxy cluster.