Is there ever a possiblity that the Earth could be sucked into a black hole, and if so... What would happen?

Question

What would be the end result if that happened? Would our earth go back into time? What do you think?

Answer 1

No.

At least, not for the next 3 or 4 billion years. When the Andromeda galaxy and our own Galaxy collide, there should not be any actual collisions. However, tidal effects may disrupt the galactic orbit of star groups. Either the group of stars will be ejected from the galaxy forming an "antenna" -- see link 1 -- or it will (eventually) fall into one of the two galactic black holes (ours or Andromedas).

If the latter happens and our sun is part of the doomed stream, Earth will go along for the ride.

As anything approaches the event horizon, two separate things happen at once. Depending on the size of the black hole, one effect will be stronger than the other.

Tidal stretching. If the black hole's Schwarzschild radius is small enough, the gravitational gradient will be very strong near the event horizon. The part of any object closer to the black hole will be pulled in a lot faster than the opposite side and the object will be torn apart (even atoms at some point). See link 2.

Accretion disc heating. Because black holes are (relatively speaking) tiny objects, it is rare that anything would fall directly in. More likely, the infalling object would be captured in an orbit, where it will be torn apart (as above) and collide with all the other objects, thereby distributing all the orbital momentum so that everything ends up on the same orbital plane (an accretion disc). See link 3.

Because of the friction and tearing up, accretion disks reach temperatures in the millions of degrees and are visible by the X-rays they emit (simply because of the temperature).

Our Earth (along with the Sun and the rest of the solar system -- lots of stuff) would simply be reduced to its constituents (even atoms could eventually be torn apart) and contribute to a flow of X-rays and, maybe, even gamma rays.

By the time Earth or rather its basic constituents get inside the event horizon, there will be nothing recognizable left to go forward or back in time.

Answer 2

No.

You do realize that a typical black hole is MUCH smaller than Earth, right? This means that in a close encounter the side of the Earth which points towards the black hole would disintegrate first, with the planet being stretched into a molten ellipsoid shaped debris cloud. The cloud would then spiral around the black hole because of angular momentum conservation. It would take on the shape of a small galaxy.

The intense radiation from the first in-falling gas would then quickly start to boil off the outer layers of this cloud and most of the material might actually be dispersed into space rather than ever reach the event horizon. Material which reaches the event horizon will be disintegrated into elementary particles.

We don't know what happens below the event horizon. Personally, I don't believe there is anything "below" there. The event horizon is "it". And even if there was something "below", time would not revert in there. It just takes on the properties of an asymmetric spacial coordinate, i.e. just like in the ordinary universe one can only go forward in time, inside a black hole one can only go forward in space. And at the end of that space is a wall called the singularity (it's not a point as many seem to think). Once you hit that wall, its game over for our current understanding of physics.

Answer 3

Currently the super massive black hole in the middle of our galaxy isn't sucking in matter. But it might someday.

The only black hole we could get sucked into would be that black hole as other black hoes are 1. too far away to influence us. 2. would have to be unconcievably big (like billions of times the size of our sun.

If our black hole did start suckign in matter it probably wouldn't effect us as we are on the outer edge of our galaxy and our gravitational effects caused by the galaxy would be the same if the black hole wern't there. The blackhole would need to grow a lot to suck us in and that can't happen as the gravity relies on the radius of the black hole and that is constant as themass is compacted to singularity. where there is an infinite volume taking up zero space.

Answer 4

A black hole would have to come swinging by this way and it would start by sucking up the sun and then the earth, but it would trashed into little pieces first.

Answer 5

Such a thing is a very remote possibility but the odds against it happening are too high to even compute. If it happened Earth would be completely torn apart and reduced down to basic sub-atomic particles.

Answer 6

Probably not, since the sun is too small to become a black hole. As for what would happen, who knows?

Answer 7

If we get sucked in a black hole, we'd die instantly!
Next thing I know, we'll all probably be born again, probably in a differnt Solar System! New life, New world...

I think it's possible but in 1 of 100000000000 chance...
I don't think it'll happen... I happened to the sun once, it sucked a bit of light... The sun won't go though!
Interesting Question!

PS>> HELP!! can some one PLEASE answer my newest question thanks

Answer 8

Even if the sun was compressed to a black hole, the mass would be unchanged, and Earth's orbit would be unchanged.

Answer 9

there could be a wandering black hole one day that justs pops into our solar system and sucks up everything...it would kinda suck because we would know the exact second we would die, you would become really stretched out and then get sucked in

Answer 10

Unless our sun collapses into a black hole....no.