Galaxy Universe, ViewSpace is a free, web-based collection of digital interactives and videos highlighting the latest developments in astronomy and Earth science. Interactives ViewSpace interactives allow you to Mar 31, 2013 · The universe is all of the galaxies – billions of them! NASA’s telescopes allow us to study galaxies beyond our own in exquisite detail, and to explore the most distant reaches of the observable universe. May 5, 2026 · Learn about galaxies, the large collections of stars, planets, and gas and dust that form the universe. NASA’s space telescopes have revealed intricate details of the shapes, structures, and histories of galaxies — whether alone, as part of small groups, or within immense clusters. [1][2] The word is derived from the Greek galaxias (γαλαξίας), meaning 'milky', a reference to the Milky Way galaxy that contains the Solar System. You can discover how different forms of light, invisible objects, and satellites help us understand the galaxy and the universe. A galaxy is a physical system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity. Explore our cosmic neighborhood in an interactive 3D map featuring the Milky Way, Andromeda, Triangulum, and dozens of nearby dwarf galaxies. Merging galaxies in the young universe may provide the fuel to power the enormous energy output of quasars, but when the feeding frenzy ends, the black hole cannot maintain it. Galaxies that merge into giant swirls. Jun 1, 2017 · Learn the difference between our Solar System, our Milky Way Galaxy, and the Universe with this article from NASA Science. See images of galaxies and explore the observable universe with telescopes. Explore the history of galaxy discovery and observation, from ancient philosophers to modern astronomers. " There are many types of galaxies spanning all sorts of shapes and sizes. Sep 14, 2023 · Galaxies Images NASA’s James Webb Space Telescope has peered into the chaos of the Cartwheel Galaxy, revealing new details about star formation This landscape of “mountains” and “valleys” speckled with glittering stars is actually the edge of a nearby, young, star-forming region An estimated 2 trillion+ galaxies occupy the observable universe. Enormous stars that eventually explode and become supernovas. Neutron stars — objects so dense, one tablespoon of their material would weigh about 1 billion tons on . From supermassive black holes at galactic centers to giant bursts of star formation to titanic collisions between May 18, 2026 · What Is a Galaxy? The Short Answer: A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity. Apr 15, 2021 · Galaxies are glittering cities, massive metropolises full of stars, dust, gas, black holes, magnetic fields, cosmic rays, dark matter and more.
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