"The Cosmic Misfits" --25% of All Galaxies Have an Indefinable, Irregular Shape (NASA/ESA Hubble)

Most galaxies possess a majestic spiral or elliptical structure. About a quarter of galaxies, though, defy such conventional, rounded aesthetics, instead sporting a messy, indefinable shape. Known as irregular galaxies, this group includes NGC 5408, the galaxy that has been...