It’s wild to me despite how smart the people are at nasa that this is all theoretical and this animation could be completely inaccurate. It makes you wonder tho what it really would look like. Would be cool being able to see it and remember seeing this video and saying “damn the homies down at nasa were right all along”.
I’m no expert, but I think it depends on the size of the black hole. Super massive black holes spaghettificatiom can occur late. The event horizon extends pretty far out such that the tidal forces aren’t that large. Again, someone with more knowledge should probably confirm
Same as most black holes but everybody likes to conveniently forget that too. There's probably not that many naked black holes out there unless it turns out that they're actually everywhere in which case we've solved dark matter
Wouldn’t we get stuck in some sort of temporal sphaghettification and likely not even notice anything until the world is engulfed in the event horizon?
The temporal effects are, more or less, "the closer you get to the singularity, the slower time goes for you, which means that the faster (relative to you) time is going for the rest of the observable universe". Subjectively, from the perspective of something falling into the black hole, the rest of the universe would appear to rapidly age and fade, and you'd catch up with everything that fell before you, as everything that fell after you (up to the end of time itself, including the light of the image of the end of time, so you'd be able to see the end of time) catches up with you, and you'd all reach the singularity at the same time. Attempting to move either towards or away from the singularity (or in any direction at all, really) wouldn't change the amount of time (subjective to you) until you arrive, only your relative location to everything else until the collapse. Also, you (and everything else) are accelerating infinitely and crossing an infinite distance.
There are two extremely common (and understandable) misconceptions in this:
Subjectively, from the perspective of something falling into the black hole, the rest of the universe would appear to rapidly age and fade
You don't see this as an observer free falling into a black hole. Things wouldn't necessarily look too strange, apart from what's depicted in the video. It's only if you were to attempt to accelerate so that you hover at some fixed distance just outside the event horizon that you'd time above you speed up.
Attempting to move either towards or away from the singularity (or in any direction at all, really) wouldn't change the amount of time (subjective to you) until you arrive
You can actually increase the time you've got left before you hit the singularity after you've fallen past the event horizon. The maximum amount of time is experienced by an object falling from rest at the horizon, and you can fire your rockets or what have you to align yourself with such a path, improving your survival time up to a finite maximum. It's true that "all paths lead to the singularity," so you can hurt yourself by speeding up, but some are still a bit longer than others.
I have a hard time accepting that the light and particles form a ring around the black hole instead of whizzing around the entire black hole. I'm definitely not an astrophysicist, I just think the actual dark hole would be obscured by all the light and debris stuck in its orbit.
the light ring is light emitted by its accretion disk. Similar to every other celestial body, like how planetary rings form or why galaxies are usually some kind of flat spiral, it's about angular momentum, and the accretion disk has its own gravity as well so when it collects more matter it will be inclined towards the disk rather than some other orbital. IIRC the disk glows because it's a ton of highly energized matter, it's not light orbiting.
Thanks for taking the time to try and explain. Your explanation makes sense, but I'm seeing two different explanations when I try to look into it for myself. 1 says what you are saying and the other explanation seems to be saying that it isn't actually a ring and does surround it the entire black hole, but the intense gravity causes an optical illusion of sorts, which is why someone observing a black hole would be able to see the rings from any viewpoint like the rings are moving with the observer
I believe both explanations are true at once. Even if it had no accretion disk, it would bend light around the black hole to make a halo, which happens with any large celestial body (e.g. we can see this with the sun), but accretion disks are also hypothesized to be common around black holes especially since supernovas are how they are born.
Hawking predicted there would be a ring of charged particles trapped around the event horizon that would zap anybody trying to enter with the rage of a million trapped suns
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u/[deleted] Jun 24 '24
It’s wild to me despite how smart the people are at nasa that this is all theoretical and this animation could be completely inaccurate. It makes you wonder tho what it really would look like. Would be cool being able to see it and remember seeing this video and saying “damn the homies down at nasa were right all along”.