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1. www.astronomy.com › science › ask-astro-can-a-blackAsk Astro: Can a black hole form without a parent star?

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   Oct 20, 2021 · Can a black hole form without a parent star? A few different kinds of black holes exist. First are stellar-mass black holes, which can range from 3.3 to 100 times the mass of the Sun. These are ...

   • Black holes, explained by an astrophysicist - Astronomy Magazine

     Black holes may have also formed before the appearance of...

2. www.scientificamerican.com › article › the-first-bigThe First Big Black Holes May Have Formed without Stars ...

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   May 28, 2024 · Astrophysicist Priyamvada Natarajan predicted that black holes can form without the help of stars. New observations support her theory. By Zack Savitsky. This image contains the most distant black ...

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     Black Holes 101 | National Geographic

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     Black Holes Explained – From Birth to Death

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     Supermassive black holes: Theory, characteristics and formation

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4. science.nasa.gov › universe › 10-questions-you-might10 Questions You Might Have About Black Holes - NASA Science

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   Sep 23, 2019 · A stellar-mass black hole, with a mass of tens of times the mass of the Sun, can likely form in seconds, after the collapse of a massive star. These relatively small black holes can also be made through the merger of two dense stellar remnants called neutron stars.

5. www.scientificamerican.com › article › black-starsBlack Stars, Not Holes | Scientific American

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   May 21, 2013 · Black Stars, Not Holes. Quantum effects may prevent true black holes from forming and give rise instead to dense entities called black stars. Black holes have been a part of popular culture for ...

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

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   Dec 11, 2023 · Black holes may have also formed before the appearance of the first stars, A few hundred million years after the big bang, gigantic clumps of matter may have directly collapsed into a black hole ...

7. www.sciencealert.com › in-a-huge-first-scientistsIn a Huge First, Scientists Have Observed The 'Missing Link ...

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   And the most massive stars, over 30 solar masses, become stellar-mass black holes. Our understanding of this process, however, is largely based on observing the aftermath. For example, neutron stars in the Milky Way shining from within the remnants of the supernova explosion in which they were born, such as the famous Crab Pulsar (below), or Vela Pulsar (a pulsar is a type of neutron star).

8. People also ask

   Can black holes form without stars?

   • Astrophysicist Priyamvada Natarajan predicted that black holes can form without the help of stars. New observations support her theory By Zack Savitsky This image contains the most distant black hole ever detected in x-rays, a result that may explain how some of the first supermassive black holes in the universe formed.

   The First Big Black Holes May Have Formed without Stars | Scientific

   www.scientificamerican.com/article/the-first-big-black-holes-may-have-formed-without-stars/

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   Can a star build a black hole?

   • A visualization of the black hole at the center of the Milky Way. Credit: Abhishek Joshi/UIUC We know of only one sure-fire method for building black holes, and that’s through the death of a massive star. When a star at least eight times larger than the Sun nears its end, it forms a core of solid iron and nickel.

   Black holes, explained by an astrophysicist - Astronomy Magazine

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   Could supermassive black holes ever form a star?

   • But a handful of observations of supermassive black holes in the very early universe have suggested that there’s more to the picture. In 2006 Natarajan and her colleagues proposed a radical new explanation for how disks of gas could collapse directly into abnormally massive baby black holes without ever forming a star.

   The First Big Black Holes May Have Formed without Stars | Scientific

   www.scientificamerican.com/article/the-first-big-black-holes-may-have-formed-without-stars/

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   How big is a black hole compared to a star?

   • In nearby galaxies, the mass of all the stars is often 1,000 to 10,000 times the mass of the central black hole. But in these direct-collapse scenarios, for a brief period of time, the mass of the black hole could actually be comparable to the mass of the stars.

   The First Big Black Holes May Have Formed without Stars | Scientific

   www.scientificamerican.com/article/the-first-big-black-holes-may-have-formed-without-stars/

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   When are black holes born?

   • Typically, black holes are born when stars die. When the most massive stars undergo gravitational collapse, the little nugget they leave behind is a black hole. That’s the pretty clearly established origin story.

   The First Big Black Holes May Have Formed without Stars | Scientific

   www.scientificamerican.com/article/the-first-big-black-holes-may-have-formed-without-stars/

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   Are black holes ripping stars apart?

   • Fortunately, this has never happened to anyone — black holes are too far away to pull in any matter from our solar system. But scientists have observed black holes ripping stars apart, a process that releases a tremendous amount of energy. NASA’s Chandra X-ray observatory detected record-breaking wind speeds coming from a disk around a black hole.

   10 Questions You Might Have About Black Holes - Science@NASA

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9. www.science.org › content › articleThe Silent Black Hole | Science - AAAS

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   Nov 19, 2002 · Astronomers have found one of them drifting so slowly through space that they believe its parent star morphed into a black hole without blowing up. According to theory, a black hole arises when a giant star runs out of fuel for thermonuclear fusion. The star's core collapses, igniting a shock wave that blasts the rest of the star into space.