A black star is a theoretical concept in astrophysics that is not widely accepted or observed, but rather a speculative idea related to the end stages of stellar evolution. Unlike black holes, which are regions of spacetime with gravitational fields so strong that nothing can escape them, a black star is hypothesized to be a type of compact star that could form under certain conditions, particularly if quantum gravitational effects are taken into account.
The term is sometimes used in discussions of hypothetical structures that could form in extreme gravitational situations, but it does not represent a clearly defined or established category of astronomical objects like neutron stars or black holes. Instead, it serves as a topic for theoretical exploration regarding the nature of gravity, quantum mechanics, and the fundamental aspects of spacetime.
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