Spaghettification - Event Horizon

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The defining feature of a black hole is the appearance of an event horizon, a boundary in spacetime through which matter and light can only pass inward towards the mass of the black hole. The event horizon is referred to as such because if an event occurs within the boundary, information from that event cannot reach an outside observer, making it impossible to determine if such an event occurred.\r
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In astrophysics, spaghettification is the vertical stretching and horizontal compression of objects into long thin shapes in a very strong non-homogeneous gravitational field. It is caused by immense tidal forces. In the most extreme cases, near black holes, the stretching is so powerful that no object can withstand it, no matter how strong its components. Within a small region the horizontal compression balances the vertical stretching so that small objects being spaghettified experience no net change in volume. The point at which tidal forces destroy an object or kill a person will depend on the black holes size.\r
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Clip from the documentary “Black Holes”.\r
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Watch it here -