Some recent threads about black holes, the voyager anomaly and some theories about black holes has brought this to mind - not that I’m saying this is anythign beyond a though experiment. We really don’t know what is inside a black hole, but it is suspected that spacetime is distorted. It would seem that from inside you should still be able to see the stars, as the light of the stars just ‘falls’ right in, so we would have a view of outer space. Our sun, which would be the core of the black hole would be a time displaced version of the star that collapsed. The Voyager probe is apparently slowing, could that be from the event horizon, it is trying to approach what it can’t get through? This lead to that spacetravel from here may seem impossible, too resource intensive, but perhaps things are different beyond the E.H. as well as laws of thermodynamics, which instead of a planet where we use up resources till all is depleted, that things like perpetual motion and star travel is possible.
“Is our solar system inside a black hole?”
That wouldn’t explain a lot. Might as well ask if “absolutely everything” is a pimple on a giant’s nose. Funny but pointless speculation.
Maybe the Earth is hollow and we’re living on the inside.
If the Earth were hollow, I’d be able to see Australia from here.
The ether is denser out there.
So, how can I see the Moon?
While not a black hole, I did read an article recently that hypothesized that the Local Group is in an abnormal region of the universe, lower in density than average. This would alter perception and measurement of far-away galaxies. It’s an attempt at solving the dark energy/matter/flow problem.
Most likely wrong, but testable.
You can’t see Australia?
To see Australia, you need two things: Sarah Palin, and a porch.
Well, what would it look like inside an event horizon? All the particles that enter would do so with extremely high energies, right?
Do they still have those high energies once they enter since space is being pulled into a ‘funnel’ of sorts and there may be much more space inside a BH then the event horizon contains if it was jsut normal space. High energies would slow down, spreasd out, light would redshift.
The problem is that you can’t orbit anything inside a black hole. All space-time paths lead to the center. And if the sun were the center of a black hole we wouldn’t see it, as the light would never make it up to us.
Plus, I’m not sure you’d be able to see anything inside a black hole. All space-time paths point downward, so no light would make it to your eyes and instead would go straight down. Even if you could see anything, it would be so enormously blue-shifted that it’d be invisible and probably melt your eyes anyway.
This site has a nice little video of flying into a black hole (images, too).
I remember seeing another site that had really nice images (and explanation) of a simulated journey into a black hole, but I can’t find it. I’m pretty sure I found it via some thread here on the boards, so someone else might be able to provide a link.
Some have theorized that the universe is inside a black hole, if so then orbit and vision is possible inside. Yes everything is going ‘down’, but all are basically going down together. Also yes if the sun were inside the BH you would not see it from the outside, but if you and the sun were both inside you should be able to see it.
If a star falls inside a black hole does it stop being a star or does it continue as it falls in.
We think of a black hole as a enormous crunch, but it may be a enormous spreading out as things just fall further and further down.
I’m not sure you can think of “black holes” as objects as we know them. They are singularities, at least mathematically; a dimensionless point that all paths lead to. Here there be dragons.
According to OPRAH, yes we all are subject to a super massive black hole. 