Space, Outer Space, Universe, Nebula, Nature, Milky Way, Night, Outdoors, Light, Flare, abstract, apocalypse, astronomy, attraction, background, black, blue, collapse, constellation, cosmic, cosmos, dark, deep, eclipse, energy, explosion, eye, fantasy, fiction, field, force, galaxy, gravitational field, gravitational force, gravity, hole, iris, light, nebula, outer, science, singularity, sky, space, star, sun, supernova, time, travel, universe, world, interruption, individuality, illness, globe, burst, terrestrial planet, middle, design, formulation, earth, skill, misconception, discipline, iridaceous plant, misfortune, expert, literary composition, personnel, wizard, writing, uniqueness, celestial body, illusion, plant, opening, ill health, trouble, configuration, ace, planet, person, calamity, Earth, physics, bulbous plant
Stars are collapsing in a deep black hole, attracted by the huge gravitational field. The black hole looks like an eye or an iris in the sky. Elements of this image furnished by NASA.