00:00Black holes are one of our universe's greatest mysteries, with no one really understanding
00:08what happens once an object passes one of their event horizons.
00:12However, an astrophysicist at NASA's Goddard Space Flight Center has now built a supercomputer
00:17simulation, revealing what it might theoretically be like to enter one of these cosmic vortices.
00:23Astrophysicist Jeremy Schnittman ran two simulations, the first of which shows what it would be like
00:27for an astronaut to graze an event horizon, but not pass through it.
00:30An event horizon is essentially the point of no return with regards to black holes, as
00:35anything which passes over one, even light, can never escape again.
00:38And that's one reason why black holes are so mysterious.
00:41We don't really know what happens on the other side.
00:43Even physics enters the territory of paradox when attempting to define the inner workings
00:47of black holes.
00:48Still, a second computer simulation attempts to show, as best we can guess, what plunging
00:52into a black hole might be like.
00:54The simulation begins relatively similarly to the first, until it ends in utter blackness.
00:59No doubt a byproduct of physics breaking down around you.
01:02Schnittman says that on a consumer-grade computer, the calculations used to produce these visualizations
01:07would have taken some 10 years to complete.
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