Scientists have only searched through a tiny fraction of our galaxy, and with the fast advances in technology, we can expect many more interesting discoveries in the future. But for now, check out the handy infographic below, courtesy of Space.com, displaying all known types of alien worlds.
Space. .Ring's tars. . Taking centre stage in this new NASA/ESA Hubble Space Telescope image is a galaxy known as NGC 3081, set against an assortment of glittering galaxies in the distance. Located in the constellation of Hydra (The Sea Serpent), NGC 3081 is located over 86 million light-years from us. It is known as a type II Seyfert galaxy, characterised by its dazzling nucleus.
Small spiral galaxy NGC 7742. This spiral is known to be a Seyfert 2 active galaxy, a type of galaxy that is probably powered by a black hole residing in its core. The core of NGC 7742 is the large yellow 'yolk' in the centreof the image. Credit: Hubble Heritage Team (AURA/STScI/NASA/ESA) - via Jean-Baptiste Faure
The Lagoon Nebula ~ captured in all its psychedelic glory by the Gemini Observatory in Hawaii. An all-time favorite of sky-watchers on both hemispheres, the Lagoon Nebula (Messier 8, or M8) is among the most striking examples of a stellar nursery in our neighborhood of the Milky Way galaxy. Located in the direction of the constellation Sagittarius in the southern Milky Way and visible in telescopes and binoculars its fuzzy glow reveals the type of chaotic environment where new stars are…