Apr 2, 2019 ·
https://science.nasa.gov/universe/exoplanets/our-milky-way-galaxy-how-big-is-space/
Apr 2, 2019 · Our galaxy probably contains 100 to 400 billion stars, and is about 100,000 light-years across. That sounds huge, and it is, at least until we start comparing it to other galaxies .
Dec 24, 2025 ·
https://www.discovermagazine.com/the-size-of-our-galaxy-stretches-tens-of-thousands-of-light-years-across-but-it-s-height-is-rather-small-48451
Dec 24, 2025 · The Milky Way Galaxy stretches about 80,000 to 100,000 light-years across. However, it’s only about 1,000 light-years tall, which is pretty skinny for a galaxy . The distance from Earth to the center of the Milky Way — a supermassive black hole known as Sagittarius A* — is about 26,000 light-years.
May 5, 2026 ·
https://science.nasa.gov/universe/galaxies/
May 5, 2026 · 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 than a million light-years across. The smallest can contain a few thousand stars and span just a few hundred light-years.
Jul 26, 1999 ·
https://www.britannica.com/place/Milky-Way-Galaxy
Jul 26, 1999 · Milky Way Galaxy (sometimes simply called the Galaxy ), large spiral system of about several hundred billion stars, one of which is the Sun. It takes its name from the Milky Way, the irregular luminous band of stars and gas clouds that stretches across the sky as seen from Earth.
May 22, 2024 ·
https://www.sun.org/images/sizes-of-galaxies
May 22, 2024 · While the Milky Way is considered averagely large, boasting a diameter of 100 000 light years and hosting an estimated 200 billion to 400 billion stars, it appears dwarfed when compared with larger galaxies such as M100, M87, NGC 4921, or Hercules A.
Scale of the Universe
https://scaleofuniverse.com/
Scale of Universe is an interactive experience to inspire people to learn about the vast ranges of the visible and invisible world. Click on objects to learn more. Use the scroll bar to zoom in and out. Originally created by Cary Huang. Remastered by Chloe Caruso, Ben Plate, and more.
Feb 2, 2025 ·
https://universewatcher.com/galaxy-size-analysis/
Feb 2, 2025 · Galaxy sizes vary considerably, from dwarf ellipticals to giant spirals spanning up to 50 kpcs, and giant ellipticals reaching diameters of 200 kpcs. Measuring a galaxy 's luminosity involves capturing its total light output.
How big is Milky Way? | Scale of the Universe
https://scaleofuniverse.com/universe/milky-way
If the Milky Way was the size of a football field, our solar system would be the size of a dime! The Milky Way compared to other galaxies : While the Milky Way is massive, it's actually only average-sized compared to other galaxies in the universe.
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