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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 ...
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
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".
Back in 2017, NASA astronauts Peggy Whitson and Jack Fischer live-streamed a broadcast from the International Space Station using 4K ultra-high-definition technology — the next-gen standard for ...
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 .
The conversion of gravitational potential energy to radiation by infalling to a black hole converts between 6% and 32% of the mass to energy, compared to 0.7% for the conversion of mass to energy in a star like the Sun. [40] It is the only process known that can produce such high power over a very long term.
A map of the Boötes Void. The Boötes Void (/ b oʊ ˈ oʊ t iː z / boh-OH-teez) (colloquially referred to as the Great Nothing) [1] is an approximately spherical region of space found in the vicinity of the constellation Boötes, containing only 60 galaxies instead of the 2,000 that should be expected from an area this large, hence its name.
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]