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  2. Black star (semiclassical gravity) - Wikipedia

    en.wikipedia.org/wiki/Black_Star_(semiclassical...

    A black star is created when matter compresses at a rate significantly less than the free fall velocity of a hypothetical particle falling to the center of its star. Quantum processes create vacuum polarization , producing a form of degeneracy pressure preventing spacetime (and the particles held within it) from occupying the same space at the ...

  3. Blackstar (spacecraft) - Wikipedia

    en.wikipedia.org/wiki/Blackstar_(spacecraft)

    The article also said that the United States Air Force's Space Command was unaware of Blackstar, suggesting it was operated by an intelligence agency such as the National Reconnaissance Office. [1] [2] Aviation Week speculated that such a spacecraft could also have offensive military capabilities, a concept colloquially known as "The Space Bomber".

  4. Black Star - Wikipedia

    en.wikipedia.org/wiki/Black_star

    Black star (semiclassical gravity), a theoretical star built using semiclassical gravity as an alternative to a black hole Saturn , referred to as "Black Star" in ancient Judaeic belief Black dwarf , a theoretical stellar remnant formed after cooling of a white dwarf to a sufficient level where heat is no longer emitted

  5. Gravastar - Wikipedia

    en.wikipedia.org/wiki/Gravastar

    Gravastar formation may provide an alternative explanation for sudden and intense gamma-ray bursts throughout space. [citation needed] LIGO's observations of gravitational waves from colliding objects have been found either to not be consistent with the gravastar concept, [8] [9] [10] or to be indistinguishable from ordinary black holes. [11] [12]

  6. Blackstar (TV series) - Wikipedia

    en.wikipedia.org/wiki/Blackstar_(TV_series)

    Blackstar is an American animated science fantasy television series, produced in 1981 by Lou Scheimer and Norm Prescott for Filmation. [1] The series was Filmation's second fantasy epic, the first being The Freedom Force, a segment of Tarzan and the Super 7.

  7. Outline of black holes - Wikipedia

    en.wikipedia.org/wiki/Outline_of_black_holes

    Photon sphere – spherical region of space where gravity is strong enough that photons are forced to travel in orbits. Ergosphere – region located outside a rotating black hole. Hawking radiation – black-body radiation that is predicted to be emitted by black holes, due to quantum effects near the event horizon. [2]

  8. Remove Banner Ads with Ad-Free AOL Mail | AOL Products

    www.aol.com/products/utilities/ad-free-mail

    Ad-Free AOL Mail is only available when viewing email on the web from a computer or mobile device. If you access AOL Mail from the AOL Desktop software or mobile app, you will continue to see paid ...

  9. Quasi-star - Wikipedia

    en.wikipedia.org/wiki/Quasi-star

    A quasi-star (also called black hole star) is a hypothetical type of extremely large and luminous star that may have existed early in the history of the Universe. They are thought to have existed for around 7–10 million years due to their immense mass .