Black holes?

Question

If two black holes are coming towards each other, which one would be sucked into the other one?

If a small black hole came upon a planet much larger than itself, then would the smaller black hole be snuffed out or would it still destory the planet, and how long would it take?

Answer 1

This is all complicated astrophysics, but I belive that the two black holes would rotate around each other before collapsing into one larger black hole.

EVERYTHING is larger than a black hole, but a black hole is much more massive then a planet. Depending on the speed and direction of both the black hole and the planet, the hole could engulf it, or the planet could start revolving around the hole. Or the planet could be hurled off into interstellar space, the middle of nowhere.

Answer 2

If two black holes were to combine, they'd most likely merge into one black hole (with the mass of the two black holes). Chances are it will most likely be messy, as it would release a lot of energy in the form of cosmic and hard gamma rays, as well as gravity waves.

If a black hole where to come upon a planet much larger than itself, chances are the planet is pretty much doomed. The denser black hole will begin feeding on it as soon as its matter reaches its sphere of influence. In the process, the planet more than likely will be torn asunder due to tidal stresses as the black hole tries to absorb it. The same would be true for stars unlucky enough to get into a black holes path.

That said, what WON'T happen is a star or planet getting 'sucked' into a black hole like a vacuum cleaner. If our sun where to suddenly become or be replaced by a black hole, the orbits of the planets would be relatively unchanged.

Answer 3

The more massive black hole would draw the other black hole toward itself. Which one swallowed which wouldn't really matter, though, as the material in a black hole is indistinguishable. You can't tell what used to be stars or planets or yesterday's newspapers or a different black hole. It all looks the same.

Size doesn't matter to a black hole; mass does. Even a spoonful of black hole masses more than the Earth. The black hole would draw the planet apart and swallow it. How long depends on their paths and how massive the black hole is. If they were in different orbits that passed each other, the black hole might grab some of the planet's atmosphere and cause earthquakes. If they were traveling near each other for a while, more damage would be done.

http://space.newscientist.com/article/dn10736-black-hole-seen-devouring-star-in-best-detail-yet.html

This is a little easier to understand.
http://www.llnl.gov/pao/news/news_releases/2005/SF-05-04-03.html

Answer 4

The collision of two black holes results in them joining to make one bigger black hole, regardless of the relative masses of the initial black hole. This must happen whenever galaxies collide.

A microscopic black hole might pass all the way through a planet without causing much damage, if it were small enough and fast enough. A bigger black hole will get stuck inside the planet, and will eventually eat the whole planet. There is no evidence for this actually occurring in our Universe.

Answer 5

Colliding black holes interact depending on size and direction they approach each other.
Smaller black holes may be more powerful than larger ones.
Also, a black hole has two sides, one sucks in all that is near enough, while the other end expells all that has been sucked in in the form the singularity, also known as a white hole.
Thair is no planet larger thyan a black hole.

Answer 6

Black holes can combine into a much bigger black hole.

Black holes are created in the deaths of massive stars, so they have far more gravity than the planets. So the planet would be sucked in and become part of the black hole.

Answer 7

In the center of each galaxy there are black holes (thats how all the planets don't float away) when two black holes go to each the smaller one gets sucked into the bigger one and the bigger one gets bigger. So ini 2 billion another gaxaly (Nubla or something or other) is going to crash into us.

The black hole would suck that bigger planet in

Answer 8

At present there are 2 Galaxy that are colliding and they both have black holes in the middle to hold every thing else in orbit. We will haft to Weight and see .

Answer 9

i think it would pull the planet in until it started snapping and becoming a size where the black hore can swallow it