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  1. Black hole - Wikipedia

    There is consensus that supermassive black holes exist in the centres of most galaxies. The presence of a black hole can be inferred through its interaction with other matter and with electromagnetic …

  2. Black hole | Definition, Formation, Types, Pictures, & Facts | Britannica

    6 days ago · Black hole, cosmic body of extremely intense gravity from which nothing, not even light, can escape. It can be formed by the death of a massive star wherein its core gravitationally collapses …

  3. What Are Black Holes? - NASA

    Sep 8, 2020 · A black hole is an astronomical object with a gravitational pull so strong that nothing, not even light, can escape it. A black hole’s “surface,” called its event horizon, defines the boundary …

  4. Black Hole - Definition, Formation, Types, and Mysteries

    Sep 20, 2025 · Explore what a black hole is, how one forms, their types, structure, history, and the latest discoveries about these cosmic enigmas.

  5. Black holes — Everything you need to know | Space

    May 6, 2022 · Black holes are some of the strangest and most fascinating objects in the universe. They're extremely dense, with gravitational forces so strong, that nothing, not even lights, can …

  6. Black Holes | NSF - U.S. National Science Foundation

    Black holes are extremely dense pockets of matter, objects of such incredible mass and miniscule volume that they drastically warp the fabric of space-time. Anything that passes too close, from a …

  7. Black Hole 101 - Education

    May 31, 2024 · A black hole is a region in space where the force of gravity is so strong, not even light, the fastest known entity in our universe, can escape. The boundary of a black hole is called the event …

  8. Black holes: News, features, articles and facts | Live Science

    Feb 14, 2026 · Black holes may look like empty space, but they're the opposite. Inside a black hole, you would find loads and loads of material squished down to an infinitely small point.

  9. What is a black hole? | University of Chicago News

    Black holes are regions in space where an enormous amount of mass is packed into a tiny volume. This creates a gravitational pull so strong that not even light can escape. They are created when giant …

  10. Black Holes - Harvard–Smithsonian Center for Astrophysics

    Black holes are some of the most fascinating and mind-bending objects in the cosmos. The very thing that characterizes a black hole also makes it hard to study: its intense gravity. All the mass in a black …