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  2. Black hole - Wikipedia

    en.wikipedia.org/wiki/Black_hole

    A black hole with the mass of a car would have a diameter of about 10 −24 m and take a nanosecond to evaporate, during which time it would briefly have a luminosity of more than 200 times that of the Sun. Lower-mass black holes are expected to evaporate even faster; for example, a black hole of mass 1 TeV/c 2 would take less than 10 −88 ...

  3. A Sky Full of Ghosts - Wikipedia

    en.wikipedia.org/wiki/A_Sky_Full_of_Ghosts

    It premiered on March 30, 2014 on Fox and on March 31, 2014 on National Geographic Channel. [1] The episode presented an in-depth treatment of black holes, beginning with John Michell's suggestion of the existence of an "invisible star" to the first discovery of a black hole, Cygnus X-1. [2]

  4. List of black holes - Wikipedia

    en.wikipedia.org/wiki/List_of_black_holes

    OJ 287 core black holes — a BL Lac object with a candidate binary supermassive black hole core system [23] PG 1302-102 – the first binary-cored quasar — a pair of supermassive black holes at the core of this quasar [24] [25] SDSS J120136.02+300305.5 core black holes — a pair of supermassive black holes at the centre of this galaxy [26]

  5. The secret recipe of black holes: Study finds they can 'cook ...

    www.aol.com/news/secret-recipe-black-holes-study...

    Supermassive black holes, regions of space where the pull of gravity is so intense that even light doesn't have enough energy to escape, are often considered terrors of the known universe.

  6. List of most massive black holes - Wikipedia

    en.wikipedia.org/wiki/List_of_most_massive_black...

    The supermassive black hole at the core of Messier 87, here shown by an image by the Event Horizon Telescope, is among the black holes in this list. This is an ordered list of the most massive black holes so far discovered (and probable candidates), measured in units of solar masses (M ☉), approximately 2 × 10 30 kilograms.

  7. Outline of black holes - Wikipedia

    en.wikipedia.org/wiki/Outline_of_black_holes

    Extremal black hole – black hole with the minimal possible mass that can be compatible with a given charge and angular momentum. Black hole electron – if there were a black hole with the same mass and charge as an electron, it would share many of the properties of the electron including the magnetic moment and Compton wavelength.

  8. List of nearest known black holes - Wikipedia

    en.wikipedia.org/wiki/List_of_nearest_known...

    This is a list of known black holes that are close to the Solar System. It is thought that most black holes are solitary, but black holes in binary or larger systems are much easier to detect. [1] Solitary black holes can generally only be detected by measuring their gravitational distortion of the light from more

  9. Sh 2-101 - Wikipedia

    en.wikipedia.org/wiki/Sh_2-101

    Sh 2-101, at least in the field seen from Earth, is in close proximity to microquasar Cygnus X-1, site of one of the first suspected black holes. Cygnus X-1 is located about 15′ west of Sh 2-101. The companion star of Cygnus X-1 is a spectral class O9.7 Iab supergiant with a mass of 21 solar masses and 20 times the radius of the Sun.