What would we see if we fell into a Black Hole?

What does a black hole look like? Which optical effects appear in its surroundings? What do we see when we cross its horizon? All these answers in 15 minutes!

0:00 - Introduction
1:53 - Before the fall
5:17 - Falling through the disc
8:26 - Crossing the horizon
12:42 - Conclusion

This video is narrated by Octave Masson.
And if you liked this video, you can share it on social networks !

Alessandro Roussel,

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To learn more :

[ScienceClicEN]

For more details about the simulation :

- The apparent shape of the disc is calculated using raytracing and general relativity (I calculate the motion of light rays from the source to the observer, and the apparent angle of this lightray in the observer's frame of reference)
- The colour of the disc is calculated by converting an infinite temperature blackbody spectrum to CIE XYZ and RGB colour spaces
- The parameters you see at the bottom left corner of the video are calculated analytically for a Schwarzschild infalling observer
- For Sagittarius A* we don't know exactly the value of its angular momentum yet, therefore some details about its accretion disc and the shape of its horizon might change

[zaliron]

There's something very haunting about passing the event horizon, knowing you'll never return, but seeing the spaceship you came from getting larger as if you were being given a second chance to reconsider.

[marsargoxmiso]

Space is terrifying but at the same time just incredibly interesting

[Julian-cpvp]

"Suicide by Black Hole" sounds like something depressed rich people would try in the year 10765.

[cadcTV]

well, this video finally helped me understand why the event horizon on a black hole looks warped on half of the hole, I appreciate the level of detail put into this!

[Danymok]

The dude who volunteered to jump into the black hole is a legend

[esselsid]

I'm just going to come out and say it.... This is hands-down the best video about falling into a black hole that exists on YouTube

[EngineerMan]

It's all fun and games until you turn to pasta.

[Quartzplays]

I want to thank the cameraman that went into the black hole to study this stuff. Hats off to him

[Koromi]

This just proves that being a cameraman gives you immortality

[icefamily]

I've seen many videos on what happens if you fall into a black hole. I was expecting yet another focus on spaghettification, but I was learning from the first minute! This is a NEW, DIFFERENT perspective from other videos. In fact, if you watch just one video on how light and time are affected by a drop into a black hole, start with this one. The visuals were fantastic and educational.

[benanzagame]

The fact that spaghettification is a scientific phrase is almost as amazing as this video

[cjdemont]

I just want to comment that I’ve shared this video multiple times, describing it as “the best explanation of what would happen if you fell into a black hole I’ve ever seen.” Absolutely tremendous work and thank you!

[TjKnItTeL]

“The plasma itself, which can reach several billion degrees, might also as well burn us alive.”

You don’t say

[sasca]

14:03 Although your clock continues to run normally for you, once you cross the event horizon, an infinite amount of time will have passed for an outside observer. Which is the same thing as saying it would take an infinite amount of time for an outside observer to see you cross the event horizon. Even if you can "see" the residual image of the outside universe due to perceptional effects like doppler and aberration, in reality there's no "outside universe" left to go back _to_ once you cross the horizon. Which is the same as saying that the interior of the black hole _is_ your new universe, and any direction you might travel within that new universe will not get you any closer to the universe you just came from; you will _always_ be moving, spatially and temporally, toward the singularity.

[EvilNeonETC]

This makes a clear, non-dramatized explanation of this concept. This is what I think should be shown to kids these days because of how concise it is. Well done.

[TyrellWhitney-hx]

This is one of the absolute best videos on black holes I've ever seen.

[asiancat]

Imagine going into a Blackhole thinking you are about to die, then you get teleported to another world.

[SbregMuzzProductions]

Just send me in a black hole with rope and a gopro hero 10, i'll be fine

Edit: Imagine if I survive and forgot to press record... I'll return inside with no rope this time

[christopherpetit]

Black holes have always fascinated me. The universe itself pushed to its limits. It shocked me when Carl Sagan suggested, in Cosmos, that based on the density of the known universe, it's quite possible we're living inside a black hole right now.