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  2. Quasar - Wikipedia

    en.wikipedia.org/wiki/Quasar

    Artist's rendering of the accretion disc in ULAS J1120+0641, a very distant quasar containing a supermassive black hole with a mass two billion times that of the Sun [1] The Chandra X-ray image is of the quasar PKS 1127-145, a highly luminous source of X-rays and visible light about 10 billion light-years from Earth.

  3. 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).

  4. List of quasars - Wikipedia

    en.wikipedia.org/wiki/List_of_quasars

    First quasar found to seemingly not have a host galaxy HE0450-2958 (Naked Quasar) 2005 Some disputed observations suggest a host galaxy, others do not. First multi-core quasar PG 1302-102: 2014 Binary supermassive black holes within the quasar [37] [38] First quasar containing a recoiling supermassive black hole SDSS J0927+2943: 2008

  5. ULAS J1342+0928 - Wikipedia

    en.wikipedia.org/wiki/ULAS_J1342+0928

    ULAS J1342+0928 is the third-most distant known quasar detected and contains the second-most distant and oldest known supermassive black hole, [1] [5] [6] [7] at a reported redshift of z = 7.54. The ULAS J1342+0928 quasar is located in the Boötes constellation . [ 3 ]

  6. This Is the Closest Black Hole We've Ever Discovered

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  7. Oldest black hole discovered dating back to 470 million years ...

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    Scientists have discovered the oldest black hole yet, a cosmic beast formed a mere 470 million years after the Big Bang. ... a mere 3.2 billion light-years from Earth, to magnify UHZ1 and its ...

  8. List of nearest known black holes - Wikipedia

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

    The nearest known black hole is Gaia BH1, which was discovered in September 2022 by a team led by Kareem El-Badry. Gaia BH1 is 1,560 light-years away from Earth in the direction of the constellation Ophiuchus.

  9. Q&A: She discovered the black hole at the center of our ...

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