What would happen if a black hole came within th gravity of the earth? Would it be serious? Would we die?

Answer 1

In a way, it has. The gravity of the Earth extends to infinite distance. It gets weaker and weaker, but never goes to zero completely. So every star, plant and black hole in the universe in the gravity field of each other.

Of course, the force is so small at great distances that we can just consider it to be practically zero. Since most black holes we know of are very large, if one came close to our solar system, it would disturb the orbit of the Earth, and all the other planets, and that would be really bad. It isn't going to happen though, since the nearest black hole we know of is thousands of light years away.

By the way, the same would be true if a normal star came into our solar system. Its gravity would disturb the orbits of all the planets. Lucky for us the stars in our part of the galaxy are ridiculously far apart, so they practically never get close to each other. Near the center of the galaxy, or in a dense star cluster, such interactions happen all the time, which is one reason we don't live in such a place. Life could never even get started there because the planets do not stay in nice stable orbits around their stars long enough.

Answer 2

Hi. Black holes come in many sizes, including microscopic and below. The real problem is how much gravity the black hole has and the size of it's event horizon. If a proton sized black hole approached Earth it would have the approximate gravity of Mt. Everest. This could pass right through Earth will no noticeable effect. A much larger hole could swallow the planet without a burp. So it depends.

Answer 3

Well a large black hole would probably swallow the whole solar system. Any kind of smaller black hole cannot be a threat to us (proton size black hole heavy as mt Everest for example) because small black holes have a very short lifespan. Black holes evaporate and the smaller they are the faster they do. This was shown by Stephen Hawking and is due to creation of particule-anti particule near the event horizon, which occur thanks to Heisenberg uncertainty principle. One of the particule pair is swallowed and the other one shoots in space: i.e. the black hole emits particle and other time this event causes it to evaporate.

Answer 4

black holes are shaped even as a fashionable human being is to significant to blow up as a supernova. even as the capacity runs out gravity takes over and it starts to callopse. the approach is quick and the large call will grow to be smaller. because it does the get away velocity will grow to be denser and reaches three hundred, 000 km (186,000 mph) it is the speed of light so gentle cant get away. to respond to your question the mass of our planet would rip aside and under no circumstances some thing would exist.

Answer 5

Yes, it would be the end. In fact, even if an ordinary star got anywhere near our solar system it would be the end because its gravity would change the orbit of the millions of comets and asteroid in the Kuiper Belt sending them into the inner solar system. The earth would be pulverized.

Answer 6

So, you're watching the history channel also?