Do you understand the limits of our observed universe?

Question

If there was a super-massive black hole (example 1 million universe masses) somewhere outside our observed universe, and it its gravitational pull was affecting our universe, what would an observer viewing the limits of our known universe observe that would be different than what we currently observe?

Answer 1

By definition that black hole would be part of our universe if it exerted any force on a single subatomic particle in our universe. Therefore there isn't anything that would be observable that isn't already observable now.

Answer 2

It really depends on whether or not our universe is within the event horizon of the black hole. If our universe was inside the event horizon, I imagine an outside observer would see something like we observe when looking at a black hole that is pulling matter off a star, but the matter in this case would probably be more like planets, moons, stars, etc. In this case, we would probably have already observed the phenomenon as a big black spot in the sky. We might also have noticed the disappearance of all that mass, it is possible that we could miss it, however. The universe is a big place. If our universe was ouside the event horizon, then an outside observer might just observe our universe to be orbiting the black hole (with other universes?). We, on the other hand would notice nothing, as we cannot yet view other universes(if they do indeed exist) to note that they are changing position. This is just me thinking the problem through, it's not based on fact or anything, so don't take my word for it. Sorry I can't be more help.

Answer 3

Would the gravitational pull have a directional component? In other words, everything in the universe (to some degree) would be drawn to that black hole - even the cosmic background radiation that makes up the limit of our observed universe. Since we have observed this radiation, and know that is (relatively) evenly distributed, there would either have to be black holes surrounding our universe... or nothing (with that kind of pull, that is).

Answer 4

The statement is generalized, yet quantum physics signifies that statement collapses the wave function. it is tested by using the fashionable double slit attempt the position debris, like an electron are shot forth out of an electron gun at a wall which permits you to p.c. out the position the particle hit. yet between the gun and the wall is a plate with a unmarried slit. After a short while, a unmarried band of hits is detected on the wall. Amazingly once you upload a 2d slit notwithstanding, the progression on the again wall isn't 2 bands of hits, yet a progression time-honored as an interference progression. This progression only takes position even as the particle acts like a wave. notwithstanding, in case you placed a measuring gadget to verify what slit the particle is going through, the again wall shows 2 bands (no longer the interference progression). this suggests actually that debris, or the theory of count number and each little thing, are in all plausible positions and that the act of staring at, collapses the wave function, and the particle snaps into actuality ... the actuality of dealing with one or the different slits (no longer both one in all them as a wave may). it is extraordinary ... yet then so is quantum mechanics which describes the international at those scales quite appropriately. that is how the universe works ... comprehending it is style of further frustrating. So in this sense, the act of statement creates actuality, a minimum of interior the case of debris. yet that for the time of idea may be prolonged to the universe because the universe is made out of the very similar debris. yet does length or staring at require intelligence or understanding? you aren't to any extent further going to discover that answer on Yahoo for certain.

Answer 5

Well, first off there are already super massive black holes, and they're classified as millions of solar masses.

For yours, I'd go with a name as outlandish as its composition, maybe ubermassive or something.

Nomenclature aside, gravitational forces scale as a 1/r^2, so basically the guy would see a very pitch black spot in his universe, and spacetime all curving towards one spot (light travelling in somewhat of a bent shape), and most likely he'd get sucked in and killed a few seconds after that.

Answer 6

If the black hole was a sufficient distance from our universe, we probably wouldn't notice anything. If it was close enough and big enough. We would notice that the red-shift coming from distant galaxies one side of the sky was higher than the other side.

Answer 7

No. We can't see the edge of our universe. We can see 90% back to the beginning then there is a wall of fog that we cant see through.
University of California. Astro 10 Class

Answer 8

Some good answers here....

I'd add that there might be a detectible frequency shift in light near the event horizon between us and the hole.

Answer 9

It was suggested by many people that gravitational pull travels at the speed of light. No faster. So you don't feel it now. BUt you will later.

Answer 10

Your questions are those of a dull-witted person. When you tire of stumbling in the dark, you might wish to try opening your eyes.