Galaxy is a community-driven web-based analysis platform for life science research. Discover the latest in electronic & smart appliance technology with Samsung. Find the next big thing from smartphones & tablets to laptops & tvs & more. Galaxies consist of stars, planets, and vast clouds of gas and dust, all bound together by gravity. The largest contain trillions of stars and can be more 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. Galaxy, any of the systems of stars and interstellar matter that make up the universe. Many such assemblages are so enormous that they contain hundreds of billions of stars. Virtually all galaxies appear to have been formed soon after the universe began, and they pervade all space that is viewable by modern telescopes. A galaxy is a physical system of stars, planetary systems, stellar remnants, substellar objects, interstellar gas, dust, and dark matter bound together by gravity. [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. Galaxies, averaging an estimated 100 million stars, [3] range in size from. Shop Samsung Galaxy smartphones, from the latest foldable phones to everyday devices with Galaxy AI and innovative features. Find yours at Samsung US. The Milky Way or Milky Way Galaxy, [c] or simply the Galaxy, [28] is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars in other arms of the galaxy, which are so far away that they cannot be individually distinguished by the naked eye. A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity. We live on a planet called Earth that is part of our solar system. But where is our solar system? It’s a small part of the Milky Way Galaxy. A galaxy is a huge collection of gas, dust, and billions of stars and their solar. Each galaxy is a universe of its own, a grand cosmic ecosystem filled with swirling star systems, glowing nebulae, violent explosions, and hidden forces that shape its evolution over billions of years. Understanding what a galaxy is means exploring one of the most magnificent structures nature has ever created.