Why does solar system exist?

Answer 1

It changed because different scientists back then had different perspectives of the solar system. That and the very possible possibility that people didn't have the technology to explore things that were over millions of light-years away. remember, it wasn't until recently that astronauts were fist launched into space.

Answer 2

Yes. All the stars are in motion, each going in different directions. But the stars are so far away that it takes centuries to notice any difference, and we humans don't live for centuries.

In another five thousand years or so, all the constellations will be a little different, and in 50,000 thousand years, they will be entirely changed. But you and I won't be around to notice.

And for our distant descendants, the constellations will be entirely new - because our descendants won't be looking out from Earth. They will live on hundreds of planets yet to be named.

Answer 3

It is, it's just that it's not expanding enough to make much of a difference; expansion only becomes significant over very large distances. If the "big rip" people are right and expansion is accelerating, it will eventually become large enough to be noticeable even over short distances.

Answer 4

It IS expanding. Everything in the universe is expanding. We just don't see it because it's a slow process, like Evolution.

For example, if you studied Earth Science, you'd know that Uniformitarianism is the slow process on how Earth Formed.

Answer 5

As the Earth cooled, iron metal crystalized and settle under the force of gravity toward the initial central core, which was entirely molten. Crystalization of the core from the inside out gradually led to the distinction between the solid inner core and the liquid outer core. The inner core continues to expand very slowly at the expense of the outer core because of this crystalization.

Answer 6

Astronomy has changed drastically over the millennia. People used to simply gaze at the night sky to unravel life's mysteries. Now, scientists use the Hubble telescope to look at objects quadrillions of miles away.

Answer 7

That is an elegant question.

Unfortunately, there is no simple answer. Even some of our best and brightest minds do not fully understand all the reasons.

Our best theory today is that the universe and everything in it started with the "Big Bang." Prior to this, nothing existed. Not matter, not space and not time. These are ideas very difficult to visualise. After the Bang, all matter was created, as well as space and time. Things started moving as space expanded. These objects did not move into a space that was already there; space itself was created too and started "growing." Space is stretching and still growing.

Try to imagine it like this:

If you were making a cake and have the mixture ready, you then thoroughly stir in some currants and raisins. These will be our galaxies and stars. Nothing outside the mixture exists; you must try not to think about things outside of the mix.

Into the oven it goes. The cake rises whilst being baked and gets larger. The individual pieces of fruit you put into the cake get further apart from each other, but they are not moving through the mixture; rather, the mixture itself is getting larger and the distance between the separate raisins increases. They are not moving into new spaces; the spaces themselves are getting larger. That is what we think is happening in our universe.

Answer 8

Improvements in Technology, and decline of religion.

Back in the day when everybody was religious, if somebody suggested a new idea they would be burnt.. = the dark ages.

We have bigger telescopes nowadays so we can see more!

Answer 9

Probably space is expanding since from big bang. The extreme energy of big bang is causing the space to expand;

This is a strange idea since all black holes (at the center of all galaxies) contain more energy than we can measure and matter too, of course, and that implies that the Big Bang was the destruction of a Black Hole or something else that we don't understand yet (if ever). All energy that we are familiar with is in motion and so the extreme energy of the Big Bang was not in motion until space was created for it to travel in. Is that what you mean?

Answer 10

ideas about the solar system have been changed by people thinking up ideas and also they get bored!!!

thats not true