What is a galaxy? A galaxy is 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. Galaxies usually exist in clusters, some of which measure hundreds of millions of light-years across.
A galaxy is a system of stars, stellar remnants, 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.
Galaxy Basics 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.
A galaxy can contain hundreds of billions of stars and be many thousands of light-years across. Our own galaxy, the Milky Way, is around 100,000 light-years in diameter.
What’s a galaxy? All you need to know about galaxies - EarthSky
A galaxy is a concentration of millions or billions of stars, gas clouds and pockets of dust, all bound by gravity and swathed in a cocoon of mysterious dark matter.
In our own galaxy, the Milky Way, the sun is just one of about 100 to 400 billion stars that spin around Sagittarius A*, a supermassive black hole that contains as much mass as four million suns.
A galaxy is one of the largest structures in the universe. It is a gravitationally bound system made up of stars, planets, gas, dust, dark matter, and often mysterious phenomena such as black holes and energetic cosmic radiation.
Our Milky Way is a barred spiral galaxy containing over 100 billion stars. The spiral disk of stars, gas, and dust is about 100,000 light-years across and 2,000 light-years thick — flatter than a pancake.
Galaxy S26 Ultra runs on Snapdragon® 8 Elite Gen 5 for Galaxy, which is designed to deliver superior CPU, GPU, NPU and AI performance. This customized processor is designed to enhance multitasking, camera performance and overall energy efficiency.
Meet Galaxy XR—your powerful yet lightweight headset for immersive experiences featuring conversational AI, a 4K micro-OLED display and external battery.
Get the latest games, apps, tools, and more and enjoy exclusive offers for Galaxy users. Visit the Samsung Galaxy Store now!
Looking for a Samsung Mobile? Explore mobile phones & the one within your budget. Find features and specifications and view complete range of Galaxy mobile devices.
Meet Galaxy S26 and S26+, sleek smartphones in two different sizes with a customized processor that delivers smarter Galaxy AI features and feels perfect in any hand.
Galaxy A17 5G is the awesome smartphone you need at an affordable price, with Core AI features, 5G connectivity, and three cameras to capture more detail.
Explore the new Samsung Galaxy S26 Ultra in Malaysia, powered by next-gen AI features like Enhanced Nightography, intelligent video enhancements, Now Nudge, and more for an upgraded mobile experience.
Buy the Galaxy S25 Ultra. Save on trade-ins and shop the latest S Series smartphone at Samsung.
Buy Galaxy S25 Ultra 256GB | Titanium Gray Smartphone | Price & Deals ...
Meet the Galaxy S25 Ultra, featuring titanium colours, a built-in S pen, epic camera, custom-made processor, long-lasting battery and enhanced Galaxy AI.
Samsung Galaxy S25 Ultra | Specs & Galaxy AI | Samsung UK
MSN: Galaxy Z Fold 7 speculation claims it'll achieve an even thinner folded profile
Intriguing Galaxy Z Fold 7 rumors claim Samsung could shave off even more of its build for a thinner frame. Rumors claim the Fold 7 could measure 8.2mm when folded, which is ~0.8mm drop from what was ...
Galaxy Z Fold 7 speculation claims it'll achieve an even thinner folded profile
Digital Trends: Samsung Galaxy Z Flip 8 appears thinner in new CAD leak
Samsung’s upcoming clamshell foldable, the Galaxy Z Flip 8, has leaked in detailed 5K CAD renders and a 360-degree video, offering an early look at what the company is preparing for 2026. At first ...
9to5google: This hands-on video shows the Galaxy Z Fold 7’s thin profile while closed [Gallery]
Following a hands-on image leak earlier this week, an Amazon listing has surfaced with what seems to be a quick look at the Galaxy Z Fold 7 and its super-thin profile. Through numerous leaks over the ...
This hands-on video shows the Galaxy Z Fold 7’s thin profile while closed [Gallery]
The Galaxy S26 Ultra 5G represents a pivotal step forward in smartphone technology, blending innovative camera advancements with a sleek, modern design. With its distinctive raised camera island, ...
Gizmochina: Samsung teases Galaxy Z Fold 7 as its thinnest and most advanced foldable yet
Samsung is building anticipation for its next-generation foldables. A new official teaser hints that the upcoming Galaxy Z Fold 7 will feature a dramatically slimmer and lighter design, alongside ...
Samsung teases Galaxy Z Fold 7 as its thinnest and most advanced foldable yet
BGR: Galaxy Z Fold 7 To Borrow An Idea From Apple To Stay As Thin As Possible
Samsung finally launched an ultra-thin foldable this year, the Galaxy Z Fold SE, which is available only in Korea and China right now. It's not as thin as similar Fold-type designs from Chinese ...
Galaxy Z Fold 7 To Borrow An Idea From Apple To Stay As Thin As Possible
Galaxy S26 Ultra: câmera brilhante, Tela Privacidade, processador AI personalizado. Galaxy AI inteligente. Compre agora!
Discover Samsung Galaxy S25 with Galaxy AI and smooth performance for everyday tasks, sharp photos and smarter productivity on Samsung Pakistan.
Meet the new Galaxy S23+ S23 in four colours in Samsung Australia. Share the epic with crisp Nightography for selfies and a long-lasting battery for smooth gaming.
Buy the Cobalt Violet Unlocked Galaxy S26 Ultra 256GB with compatibility to choose your carrier. Save on trade-ins & upgrade to your next smartphone at Samsung.
The Galaxy S26 series (from left) Galaxy S26 Ultra, Galaxy S26+ and Galaxy S26 Design: Sleeker and Lighter Than Ever The Galaxy S26 series makes a strong first impression with its refined, modern aesthetic, featuring a rounded curvature and cohesive color palette that create a unified design identity across the lineup.