Why do all our planets look different & can you prove the Big Bang?

Answer 1

First, the easy part... proving the "Big Bang."

There are scientists that believe it can't be proved.

The theory is based upon the apparent movement of the galaxies and other space stuff away from each other. It is as if they are expanding. If something is expanding, if you follow it back in time, it would be smaller. If you follow it further back in time, it would be still smaller. The theory is that if you follow the expansion of the universe backwards far enough it would occupy smaller and smaller space. Eventually, according to the theory, it would become a very dense glob of stuff. The theory presumes that there must have a pretty enormous release of energy when that glob of stuff flew apart to make it expand to the size it currently is. That energy release is referred to as a "Big Bang."

Though it seems to be the most logical theory, it can't be proved.


As for the appearance of planets, that's tough. Planets seem to be formed from space stuff that was captured by stars, or perhaps from stuff that was spun off from the stars. The stuff condensed and became more massive. As it became more massive its gravity attracted more stuff.

Planets near a hot star would likely be hotter than those that were more distant.

Larger planets would have different surfaces than smaller planets. Perhaps the gravity not allow mountains. Perhaps, if the gravity was strong enough, the energy exerted on the surface might make it molten. The more gravity, the greater chance for atmosphere of some kind. But it's speculation.

It's all speculation. Scientists observe things and try to come up with theories that explain what they observe. Sometimes they find a theory that lasts for a while. Sometimes discoveries disprove a theory as fast as it's formulated.

Who knows. Maybe one day you'll come up with one of those long-lasting theories.

Answer 2

The big bang is a very difficult thing to prove and as such has not been proven. It is the most popular theory among cosmologists when it comes to the origin of our universe, but as such we lack the means to actually prove it occurred. In truth it is actually very difficutl to prove anything in science. The only thing that can be done with any theory for certain is to disprove it. When the predictions made by a particular theory are verified by observation repeatedly, that theory is given credit for being useful for predicting some behavior.

For example, Newton's laws of gravity and motion were considered scientific fact for a long time, until Einstein showed that they made sufficiently accurate predicitons only in the limited scope of our experience, when talking of speeds that are small fractions of the speed of light. After such a long time believing Newton's theories to be true, they were eventually disproven. However, even though the theories proved technically incorrect, they do predict motion sufficiently well for most uses in cases of speeds that are fractions of the speed of light (which includes almost all practical applications), and therefore his theories and equations are still used widely.

Can I prove the big bang happened? No. No one can. But, you could look around at hundreds of observations that fit in with the predictions made by the big bang theory. So far, it works pretty good. It doesn't mean it's correct though.

Answer 3

1) Because they are different masses, different distances from the Sun, and made up of different materials.

2) Yes, otherwise it wouldn't be science. All the observable galaxies are moving away from us, which means they were once closer to us, which means the universe started in one spot. That spot would have been very hot and dense, and the universe has been cooling since - which accounts for the microwave background radiation observed by COBE and WMAP.

Answer 4

Why are planets different and what is the Purpose. Perhaps its how our Creator constructed the Universe . He introduced variety and with a good sense of Humour. He made the Universe to accomocated the Earth to be feasible to support all biological life.In Creation of biological life ,he also introduced variety as well.
Some One introduced a scientific theory of Creation, named Big Bang.We have not seen any proof that is really representing what actually happened during Creation.Except for the Biblical account.

Answer 5

the big bang is metaphor noboby knows how the universe started

Answer 6

No, I can't prove the Big Bang. because, it didn't happen. Creation Happened. How can somone believe that the world and everything in it happened from a "Big Bang". Im sorry, I hope I helped!