What is an event horizon?
There are three basic elements to a black hole. There’s the singularity
itself, at the heart of a black hole and made of stellar matter
compressed to an infi nite density. Outside the singularity is the black
hole’s interior space, where the rules of physics as we know them get bent
and broken, and where space and time are stretched and compressed like
putty. If your spacecraft has entered a black hole’s interior space, then it’s too
late for you. You’re past the third component: the event horizon.
Also known as the Schwarzschild radius, this is the part that lets us know
where black holes are by outlining them in black. It marks the point of no
return for anything falling beyond it, as to re-cross it would require travelling
faster than the speed of light, which – as far as we know – is impossible.
Event horizons aren’t solely attributed to black holes – they’re just a
noteworthy phenomenon that possesses them. According to some theories
governing the expansion of the cosmos, there are areas that won’t ever be
observable because light will never reach us from them. So the boundary
limit at which we can observe the universe is also an event horizon.
itself, at the heart of a black hole and made of stellar matter
compressed to an infi nite density. Outside the singularity is the black
hole’s interior space, where the rules of physics as we know them get bent
and broken, and where space and time are stretched and compressed like
putty. If your spacecraft has entered a black hole’s interior space, then it’s too
late for you. You’re past the third component: the event horizon.
Also known as the Schwarzschild radius, this is the part that lets us know
where black holes are by outlining them in black. It marks the point of no
return for anything falling beyond it, as to re-cross it would require travelling
faster than the speed of light, which – as far as we know – is impossible.
Event horizons aren’t solely attributed to black holes – they’re just a
noteworthy phenomenon that possesses them. According to some theories
governing the expansion of the cosmos, there are areas that won’t ever be
observable because light will never reach us from them. So the boundary
limit at which we can observe the universe is also an event horizon.
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