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  2. White hole - Wikipedia

    en.wikipedia.org/wiki/White_hole

    Like black holes, white holes have properties such as mass, charge, and angular momentum.They attract matter like any other mass, but objects falling towards a white hole would never actually reach the white hole's event horizon (though in the case of the maximally extended Schwarzschild solution, discussed below, the white hole event horizon in the past becomes a black hole event horizon in ...

  3. TON 618 - Wikipedia

    en.wikipedia.org/wiki/TON_618

    Size comparison of the event horizons of the black holes of TON 618 and Phoenix A.The orbit of Neptune (white oval) is included for comparison. As a quasar, TON 618 is believed to be the active galactic nucleus at the center of a galaxy, the engine of which is a supermassive black hole feeding on intensely hot gas and matter in an accretion disc.

  4. Timeline of gravitational physics and relativity - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_gravitational...

    1971 – Cygnus X-1, the first solid black hole candidate, discovered by Uhuru satellite. [43] 1971 – William H. Press discovers black hole ringing by numerical simulation. 1971 – Harrison and Estabrook algorithm for solving systems of PDEs. 1971 – James W. York introduces conformal method generating initial data for ADM initial value ...

  5. Scientists find first ever ‘black hole trio’

    www.aol.com/news/scientists-first-ever-black...

    New find challenges our understanding of where such objects come from

  6. Intrepid white dwarf has a close encounter with a massive ...

    www.aol.com/news/intrepid-white-dwarf-close...

    The researchers estimated that the white dwarf is orbiting the black hole at about 5% the distance that separates Earth from the sun, or a bit under 5 million miles (8 million km).

  7. Over a year ago, a group of researchers made a revolutionary breakthrough when they successfully captured the first-ever image of a celestial phenomenon — a black hole. The short sequence of ...

  8. Cygnus X-1 - Wikipedia

    en.wikipedia.org/wiki/Cygnus_X-1

    Cygnus X-1 (abbreviated Cyg X-1) [11] is a galactic X-ray source in the constellation Cygnus and was the first such source widely accepted to be a black hole. [12] [13] It was discovered in 1964 during a rocket flight and is one of the strongest X-ray sources detectable from Earth, producing a peak X-ray flux density of 2.3 × 10 −23 W/(m 2 ⋅Hz) (2.3 × 10 3 jansky).

  9. Stephen Hawking's famous prediction about black holes was ...

    www.aol.com/article/2016/08/15/stephen-hawking-s...

    So even if one particle falls into the black hole, the particle on the outside is still carrying the information of that particle. This is the first time that anyone has ever produced evidence for ...