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   What is a black hole in space?

   • (Credit: Event Horizon Telescope Collaboration) A black hole is a region of space having a gravitational field so intense that no matter or radiation can escape. A black hole is created after the death of a very massive star. The core of the star collapses in on itself, causing a supernova – a massive explosion of the star's outer layers.

   Fact sheet: Black hole | Canadian Space Agency

   www.asc-csa.gc.ca/eng/astronomy/fact-sheets/black-hole.asp

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   How big is a black hole?

   • The black holes shown, which range from 100,000 to more than 60 billion times our Sun’s mass, are scaled according to the sizes of their shadows – a circular zone about twice the size of their event horizons. Only one of these colossal objects resides in our own galaxy, and it lies 26,000 light-years away.

   NASA Animation Sizes Up the Universe’s Biggest Black Holes

   www.nasa.gov/universe/nasa-animation-sizes-up-the-universes-biggest-black-holes/

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   How big is M87's black hole?

   • At the animation’s larger scale lies M87’s black hole, now with a updated mass of 5.4 billion Suns. Its shadow is so big that even a beam of light – traveling at 670 million mph (1 billion kph) – would take about two and a half days to cross it.

   NASA Animation Sizes Up the Universe’s Biggest Black Holes

   www.nasa.gov/universe/nasa-animation-sizes-up-the-universes-biggest-black-holes/

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   How strong is a black hole?

   • The gravity of a black hole is so strong that nothing – not even light – can escape its pull. Black holes are generally categorized according to the mass they contain. There are three main types: Scientists are still not sure how supermassive black holes are created, although they may be formed through mergers of smaller, stellar black holes.

   Fact sheet: Black hole | Canadian Space Agency

   www.asc-csa.gc.ca/eng/astronomy/fact-sheets/black-hole.asp

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2. www.nasa.gov › universe › nasa-animation-sizes-upNASA Animation Sizes Up the Universe’s Biggest Black Holes

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   May 1, 2023 · At the animation’s larger scale lies M87’s black hole, now with a updated mass of 5.4 billion Suns. Its shadow is so big that even a beam of light – traveling at 670 million mph (1 billion kph) – would take about two and a half days to cross it.

3. www.asc-csa.gc.ca › fact-sheets › black-holeFact sheet: Black hole | Canadian Space Agency

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   A black hole is a region of space having a gravitational field so intense that no matter or radiation can escape. A black hole is created after the death of a very massive star. The core of the star collapses in on itself, causing a supernova – a massive explosion of the star's outer layers. All of the former star's matter is then concentrated into...

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   The black hole at the centre of our galaxy, the Milky Way, is known as Sagittarius A*.

   The black hole M87* (located at the centre of Messier 87, one of the most massive galaxies in the observable universe) is the subject of the first-ever picture of a black hole, released in April 2019.

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   Since light cannot escape a black hole, it is impossible to actually see what one looks like. However, black holes that are actively feeding on nearby stars or clouds of gas falling towards their c...

   The image of the black hole M87* at the top of this page was captured by a group of ground-based telescopes around the world acting in unison, effectively creating a single Earth-sized telescope th...

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5. www.astronomy.com › science › black-holes-explainedBlack holes, explained by an astrophysicist - Astronomy Magazine

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   Dec 11, 2023 · Discovered in 2022 by the European Space Agency’s Gaia mission (hence the name), the black hole sits 1,560 light-years away. There are probably black holes closer to us, but these objects...

6. www.youtube.com › watchHow big are supermassive black holes? NASA size comparison

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   May 4, 2023 · NASA compares the universes biggest black holes with "each other and to our solar system," in this new Goddard Space Flight Center animation.

   • Video Duration: 2 min
   • Views: 18.7K

   • Author: VideoFromSpace

7. www.space.com › 1542Black holes: Everything you need to know | Space

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   May 6, 2022 · The colossal structure is about 4 million times the mass of the sun and lies approximately 26,000 light-years away from Earth, according to a statement from NASA. The first image of a...

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8. www.npr.org › 2024/02/20 › 1232653636Scientists have found a black hole so large it eats the ... - NPR

   www.npr.org › 2024/02/20 › 1232653636

   Feb 20, 2024 · With a mass 17 billion times larger than our sun, this black hole is the fastest-growing black hole ever recorded, Australian National University said.

9. www.nasa.gov › universe › what-are-black-holesWhat Are Black Holes? - NASA

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   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 where the velocity needed to escape exceeds the speed of light, which is the speed limit of the cosmos.