If the world was created by the Big Bang, *Cough*...?

Question

Then how come it's so round.. ?

(Minus the Geographic Features, like mountains, and holes, and such...)
Like, From space you can see Earth as a round planet, Like all of the other planets.
So, If the World/Universe was made up by the clash of a bunch of rocks, how on Earth (haha) did these planets, like our own, develop as a sphere shape... ?

First answer ; I kind of undersood that, thanks. x] !

Second answer:
I am not a troll, Nor am I a homeschool student. -_-
I asked a Legit question.
But of course, you wouldn't understand that, would you? [:

Answer 1

My first instinct here is "creationist troll", but maybe that's just because I spend too much time over in R&S.

Should this instinct be incorrect, you know too little to educate you in a single Y!A answer.

Do you even know what the difference between the "world" and the "universe" is? If not, that's the first thing you should read up on.

Do you know which of them sprang into existance in the Big Bang? You might want to read up on that.

In fact, you might want to read up on what the Big Bang was. And you might want to do that someplace else than where you got the "clash of a bunch of rocks" idea from, because that is likely a creationist source that doesn't even want you to understand the theory.

Then, if and only if you still find some connection between the Big Bang and the formation of Earth, come back and ask again.

Answer 2

because the big bang has nothing to do with the planets being round. the universe is much larger than the earth.

the big bang created all of the energy here today and some of that energy cooled and formed all of the matter in the universe right now. now after that your basically left with MASSIVE clouds of gas the size of galaxies. some parts of it are more dense than others and stars form. eventually planets form around those stars.

the stars and the planets are all spheres because of gravity. gravity pulls everything to the center. so that only possible shape that could occur is...a sphere.

Answer 3

The earth was NOT created by the big bang. The big bang created the Universe. And the universe at that time contained no planets. Just roughly 75% hydrogen and 25% helium. Gradually stars formed from this. They eventually grew old and died in supernovae, which along with elements formed by the fusion process of the star, produced all the other elements as well. The process repeated, with other stars forming from the wastes of the original stars, living their lives, and exploding. Our sun is probaby a third generation star. It formed from the wastes of the previous two generations of stars. The earth and the other planets formed in the outer parts of its accretion disk. Accretion results in larger and larger objects, which become spherical due to gravity if they are large enough. Being molten at first also helps. So your statement just ignores about 10 billion years. Thats not TOO bad, is it?

Answer 4

Gravity.
When you consider a large group of rocks in space, all the matter is attracted to the center of mass of the group. However, not every rock can get to the center - other rocks get in the way! The shape in which all the rocks are as close as they can be to the center is a sphere.
This is an over-simplification of course. Other forces are involved (that's why it isn't a perfect sphere) and a certain amount of gravity is needed first (that's why some asteroids and small moons are not spherical).

Answer 5

Imagine a very large cloud of drifting gas and dust. At the center of this cloud is a bit of dust that's somewhat more massive than all the other bits of dust and gas surrounding it. Since it has more mass than the other bits and pieces drifting all around it, those bits and pieces will be drawn towards the larger piece because it has more gravity (..it's more massive so it has more gravity..) Remember too that the gravity of that bigger piece pulls from all directions so that other stuff heads towards it from all directions. Bits and pieces join with the more massive piece, and that increases the mass / gravity which in turn pulls in even more stuff from all directions. If you can visualize this going on and on for a very long time then you should be able to visualize a spherical object forming.

Basically that's how our planet and others formed.

Answer 6

First of all think of the Big Bang as a huge explosion. All of the material that was in the explosion blew out into space. After a while matter clumped itself together and formed into lager disks of matter. Stars formed from this matter as it condensed due to the effects of gravity. Planets are created basically the same way. The Planets shape is derived from its orbit and effects of gravitational forces upon it.

Answer 7

A sphere is the lowest-energy form of a mass. Liquids in space (we've seen astronauts drink floating blobs of orange juice) natually assume this shape, because a cube, for example, has points that are further from it's center of mass than the sides are - and if there's *enough* mass, those points will crumble and fall, releasing energy in the process. Eventually - the mass in that cube will re-arrange itself to be a sphere - where *all* it's mass is within a certain distance from the center of mass.

Answer 8

It is theorized that the UNIVERSE was created by The Big Bang that ejected its matter away from its center in all directions. This ejected matter eventually coalesced into galaxies and solar systems with planets and other artifacts.

The planets like Earth "World" eventually gathered and compacted nearby matter into a spherical shape via gravity; its natural shape.

Answer 9

The Universe was created by the Big Bang, Not the Earth specifically!

Answer 10

Our planet was not created by the big bang.

The big bang resulted in the seperation of mass (in the form of subatomic particles) and energy and an "inflationary" expansion of space. It took place 13.7 billion years ago.

Our planet earth was created 4.5 billion years ago from the gravitational attraction of debris in our star's accretion disk.