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  2. Black hole - Wikipedia

    en.wikipedia.org/wiki/Black_hole

    A black hole is a region of spacetime wherein gravity is so strong that no matter or electromagnetic energy such as light can escape it. [2] Albert Einstein's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. [3] [4] The boundary of no escape is called the event horizon.

  3. Sagittarius A* - Wikipedia

    en.wikipedia.org/wiki/Sagittarius_A*

    Sagittarius A*, abbreviated as Sgr A* (/ ˈ s æ dʒ ˈ eɪ s t ɑːr / SADGE-AY-star [3]), is the supermassive black hole [4] [5] [6] at the Galactic Center of the Milky Way.Viewed from Earth, it is located near the border of the constellations Sagittarius and Scorpius, about 5.6° south of the ecliptic, [7] visually close to the Butterfly Cluster (M6) and Lambda Scorpii.

  4. The Black Hole (1979 film) - Wikipedia

    en.wikipedia.org/wiki/The_Black_Hole_(1979_film)

    The Black Hole is a 1979 American science fiction film directed by Gary Nelson and produced by Walt Disney Productions.The film stars Maximilian Schell, Robert Forster, Joseph Bottoms, Yvette Mimieux, Anthony Perkins and Ernest Borgnine, while the voices of the main robot characters are provided by Roddy McDowall and Slim Pickens (both uncredited).

  5. 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]

  6. Katherine McAlpine - Wikipedia

    en.wikipedia.org/wiki/Katherine_McAlpine

    Black Hole Rap [ edit ] At the end of 2009, McAlpine released a new rap video on YouTube dealing with the unfounded fears surrounding experiments in CERN that could lead to the creation of a black hole which eventually would swallow the entire earth.

  7. 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.

  8. Gaia BH3 - Wikipedia

    en.wikipedia.org/wiki/Gaia_BH3

    Gaia BH3 is the first black hole discovered from preliminary Gaia DR4 astrometric data. [2] The black hole and star orbit the system barycentre every 11.6 years, with an orbital distance ranging from 4.5–29 AU. [3] The black hole's mass is 32.70 M ☉, the heaviest known stellar black hole in the Milky Way.

  9. Black Hole Initiative - Wikipedia

    en.wikipedia.org/wiki/Black_Hole_Initiative

    The Black Hole Initiative (BHI) is an interdisciplinary center at Harvard University that includes the fields of astronomy, physics, ... Official Youtube Channel;