What is inertia? When we talk about inertia, we’re really talking about one of the most foundational ideas in all of physics. What inertia captures is the tendency of physical systems to resist changes in…
Black holes, once regarded as rare curiosities of physics, are now understood to be widespread features of the universe, with their frequency depending on their type and size. Stellar-mass black holes, the remnants of massive…
Gravitational lensing due to a black hole is a direct consequence of the curvature of spacetime predicted by Einstein’s general theory of relativity, in which gravity is not treated as a force acting at a…
Spaghettification, a term coined to describe the extreme tidal stretching experienced by matter in the vicinity of a black hole, arises from the fundamental nature of gravitational fields in general relativity and their variation with…
Black holes exist as a direct and unavoidable consequence of the fundamental structure of gravity as described by modern physics, particularly general relativity, combined with the properties of matter at extreme densities. Their existence is…
In the context of general relativity, the term “singularity” in a black hole refers to a region in spacetime where the curvature becomes unbounded and the classical description of gravity breaks down. The modern concept…
Black holes are among the most extreme and fascinating objects in the universe, formed through the gravitational collapse of massive stars or the direct compression of dense cosmic matter. This article explores the physics behind…
Supermassive black holes are colossal gravitational engines located at the cores of most galaxies, including the Milky Way, which harbors one known as Sagittarius A*. Unlike the relatively small black holes formed from dying stars,…
The event horizon of a black hole is best described as an invisible frontier in spacetime, beyond which escape becomes impossible, even for light itself. Unlike a tangible surface, it is a conceptual boundary where…
What is a black hole? A black hole is a solution to the equations of general relativity that represents a region of spacetime in which gravity is so intense that no physical signal, including light,…