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  2. Black hole starship - Wikipedia

    en.wikipedia.org/wiki/Black_hole_starship

    Black holes seem to have a sweet spot in terms of size, power and lifespan which is almost ideal. A black hole weighing 606,000 metric tons (6.06 × 10 8 kg) would have a Schwarzschild radius of 0.9 attometers (0.9 × 10 –18 m, or 9 × 10 –19 m), a power output of 160 petawatts (160 × 10 15 W, or 1.6 × 10 17 W), and a 3.5-year lifespan ...

  3. File:BlackHoleDiskFlareInGalaxyOJ287-animation-20200428.webm

    en.wikipedia.org/wiki/File:BlackHoleDiskFlareIn...

    This animation shows two massive black holes in the OJ 287 galaxy. The smaller black hole orbits the larger one, which remains stationary in the animation and is surrounded by a disk of gas. When the smaller black hole crashes through the disk, it produces a flare brighter than 1 trillion stars. But the smaller black hole's orbit is elongated ...

  4. Black hole - Wikipedia

    en.wikipedia.org/wiki/Black_hole

    After two years of data processing, EHT released its first image of a black hole, at the center of the Messier 87 galaxy. [157] [158] What is visible is not the black hole—which shows as black because of the loss of all light within this dark region. Instead, it is the gases at the edge of the event horizon, displayed as orange or red, that ...

  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. 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. Space travel under constant acceleration - Wikipedia

    en.wikipedia.org/wiki/Space_travel_under...

    The Lost Fleet, written by John G. Hemry under the pen name Jack Campbell, is a military science fiction series which various ships of all sizes utilize constant acceleration propulsion to travel distances within star systems. Taking into account relativistic effects on space combat, communication, and timing, the ships work in various ...

  8. Orbiting Binary Black Hole Investigation Satellite - Wikipedia

    en.wikipedia.org/wiki/Orbiting_Binary_Black_Hole...

    However, the merger of black holes is expected to occur during the collision of galaxies. [8] This unsolved problem is known as the final parsec problem. By finding and studying black holes less than 1 pc apart, ORBIS aims to resolve this issue. [8] Computer simulation of a binary black hole system

  9. OJ 287 - Wikipedia

    en.wikipedia.org/wiki/OJ_287

    In order to reproduce all the known outbursts, the rotation of the primary black hole is calculated to be 38% of the maximum allowed rotation for a Kerr black hole. [10] [4] The companion's orbit is decaying via the emission of gravitational radiation and it is expected to merge with the central black hole within approximately 10,000 years. [11 ...