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    Black ?

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    bob
    Black holes are regions of space where gravity is so strong that nothing, not even light, can escape. They range in size from around 10 solar masses for stellar black holes to millions or billions of solar masses for supermassive black holes found at the centers of galaxies. Black holes form when massive stars collapse at the end of their life or in the early universe soon after the Big Bang. Although black holes themselves do not emit light, scientists can detect them by measuring the orbit and motion of nearby stars, which reveals the black hole's strong gravitational pull. While a black hole could potentially affect Earth if its orbit brought it very close to our solar system, this is unlikely to occur. NASA studies black holes using space-based observ

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    Black ?

    Uploaded by

    bob
    16 views8 pages
    Black holes are regions of space where gravity is so strong that nothing, not even light, can escape. They range in size from around 10 solar masses for stellar black holes to millions or billions of solar masses for supermassive black holes found at the centers of galaxies. Black holes form when massive stars collapse at the end of their life or in the early universe soon after the Big Bang. Although black holes themselves do not emit light, scientists can detect them by measuring the orbit and motion of nearby stars, which reveals the black hole's strong gravitational pull. While a black hole could potentially affect Earth if its orbit brought it very close to our solar system, this is unlikely to occur. NASA studies black holes using space-based observ

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    Black ?️

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    Black holes are regions of space where gravity is so strong that nothing, not even light, can escape. They range in size from around 10 solar masses for stellar black holes to millions or billions of solar masses for supermassive black holes found at the centers of galaxies. Black holes form when massive stars collapse at the end of their life or in the early universe soon after the Big Bang. Although black holes themselves do not emit light, scientists can detect them by measuring the orbit and motion of nearby stars, which reveals the black hole's strong gravitational pull. While a black hole could potentially affect Earth if its orbit brought it very close to our solar system, this is unlikely to occur. NASA studies black holes using space-based observ

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    16 views8 pages

    Black ?

    Uploaded by

    bob
    Black holes are regions of space where gravity is so strong that nothing, not even light, can escape. They range in size from around 10 solar masses for stellar black holes to millions or billions of solar masses for supermassive black holes found at the centers of galaxies. Black holes form when massive stars collapse at the end of their life or in the early universe soon after the Big Bang. Although black holes themselves do not emit light, scientists can detect them by measuring the orbit and motion of nearby stars, which reveals the black hole's strong gravitational pull. While a black hole could potentially affect Earth if its orbit brought it very close to our solar system, this is unlikely to occur. NASA studies black holes using space-based observ

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    of 8

    Black Holes

    What is a black hole?


    • A black hole is a region of space from whicho matter can escape it is
    the result of the curving of space time caused by a huge mass. Its gets
    its name because it absorbs all light that hits it, it reflects nothing at
    all.
    How big are they?
    • Stellar mass black holes are typically between 10-100 solar masses.
    • Supermassive black holes are centred in galaxies and are millions and
    billions of solar masses.
    • The super massive star in our Milky Way was measured at 4.3 million
    solar masses.

    • Black holes grow by taking in surrounding matter or merging with


    other black holes.
    How are they formed?
    • Primordial black holes are thought to have formed in the early
    universe, soon after the big bang.
    • Stellar black holes form when the center of a massive star collapses on
    itself.
    • Supermassive black holes formed at the same time as the galaxy they
    are in.
    How do scientists know where they are?
    • Even though black holes emit no light, they have a lot of gravity and
    because of the laws of physics scientists were able to find out exactly
    how much gravity it has by measuring how fast something orbits
    around it. For Black holes scientists are able to measure how quickly
    stars orbit around them and this tells them how much mass they
    have.
    Could they destroy earth ?
    • Black holes follow the laws of gravity, the orbit of a black hole would have
    to be very close to the solar system to affect earth, which isn’t likely. If a
    black hole with the same mass as the sun were to replace the sun, earth
    wouldn’t be taken. The planets would just orbit the black hole just like they
    do the sun.
    What’s NASA got to tell us?
    • NASA is learning about black holes using spacecraft like the Chandra X-ray
    Observatory, the Swift satellite and the Fermi Gamma-ray Space Telescope.
    Fermi launched in 2008 and is observing gamma rays - the most energetic
    form of light - in search of supermassive black holes and other astronomical
    phenomena. Spacecraft like these help scientists answer questions about the
    origin, evolution and destiny of the universe. –NASAs website
    Conclusion
    • I believe in the future (millions or billions of years) our solar system
    will come in close contact with a black hole. I do not believe it would
    be quick but rather a slow process. It would take stars and
    surrounding planets until slowly taking earth, earth might even orbit
    the black hole because of how much gravity it has. The black hole
    would then take earth.

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