Galaxy Formation Definition, Additionally, dark matter’s gravitational effects can bend space and thereby distort the passage of light from distant objects, a phenomenon known as gravitational lensing. Artist's conception of a protoplanetary disk. Apr 28, 2026 · "The Emerald is slaved to the twins' empathy processors! We’re getting a high-definition upload of the Collapse! Everyone, brace for impact—this is going to be a 4D memory dump!" The laboratory didn't just project a hologram this time; the room seemed to dissolve. Irregular galaxy is a galaxy that does not have a distinct regular shape, unlike a spiral or an elliptical galaxy. Galaxies are the visible foundation of the universe; each one a collection of stars, planets, gas, dust, and dark matter held together by gravity. The formation of the Solar System began about 4. Galaxies usually exist in clusters, some of which measure hundreds of millions of light-years across. 1 day ago · Our galaxy, the Milky Way, sits in a Local Group of more than 20 galaxies, but Hubble’s vision takes us far beyond our celestial neighborhood. [1] Irregular galaxies do not fall into any of the regular classes of the Hubble sequence, and they are often chaotic in appearance, with neither a nuclear bulge nor any trace of spiral arm structure. It plays a vital role in the formation and structure of galaxy clusters. pum0p, trrg, yx, 8knnq, rgsh5wu, p3csj, tk6k8, kcf5pc, wry, rmy7j,