An image captured by the Hubble space telescope shows the dwarf galaxy ESO 495-21, really small having an estimated total mass of around 10 billion solar masses, about 3% of the Milky Way. The astronomers’ interest in ESO 495-21 is due to the fact that, despite its small size, it’s of the starburst type, which means that it has a fast rate of star formation, and has at its center a supermassive black hole with a mass estimated at at least one million solar masses. It’s a case that could be similar to the first galaxies of the universe and supports the hypothesis that the dwarf galaxy formed around a black hole that already existed before.