evolution....right distance from sun?

Question

if the life came by evolution as many people believe
why the earth's orbital speed....keeps at the right distance from the sun?
could life originate by chance?
if by explotion we are at the right distance from the sun it is a casuality? even the earth's tilt allows for seasonal changes as spring winter autumn and summer

what do you think?
why the earth's orbital speed....keeps at the right distance from the sun if we come by evolution?

Answer 1

Ya, mars may have contained life too, there is no right distance, some think life may exist on one of Jupiter's moons

Answer 2

Gravity keeps the earth in orbit around the sun, however it is not a circle it is elliptical and the earth does vary its distance from the sun. Also the habital zone is a widely accepted theory amongst astromers it maintains for a given mass of a star (any star) there is a habital zone where a planet could harbor life. The more massive a star the shorter its' life span as giant stars burn up their fuel at a prodigious rate and probably won't be on a main sequence long enough for a planet to develope life. Giant stars life span is measured in 100 thousandsths of years compared to the sun which is measured in billions of years. That is the main reason when astromers look for stars that can support life thay look for sun like stars. It is thought that after the earth formed the first life forms appeared at ! 1./2 to 2 billions years. In regards to the question of intelligent life the question is often asked " with so many stars in the galaxy" where is everybody? Many astromers believe that given the time for life to develope(intelligent) Before another appears the other has passed on.. As a side bar I've been an amature astromer for many years and also studied and read extensively on amature astronomy and theories of life. This is just a short dicussion and by no means the end all be all to this,there is much more to consider when it comes to whether life exists elsewhere or if it's even probable....

Answer 3

The Earth is kept in orbit by gravity, and this is the only orbital speed that would works for a stable orbit at this distance. As I said, it's a stable orbit.

Quite simply - life would not have evolved on this planet the way it did if the Earth were very far from where it is now. A few million miles one way or the other makes little difference, but our form of life couldn't have survived on Mars, so we wouldn't have evolved there. We evolved to fit the planet; it wasn't made to fit us.

Answer 4

People think that the solar system is unique. They seem not to remember that there are billions and billions of stars in our galaxy and billions and billions of galaxies. That would indicate that there are billions of suns with planets being at a nice distance for life. It is impossible that there is life only on this one planet.

It so happened that this solar system is by chance arranged as it is. Over the billions of years this planet has been existent, life became assembled and beings evolved, died off, evolved, died off...

People don't seem to know how long millions of years is, let alone a billion years. There has been more than plenty of time for life to arise and evolve. Orbital speed has nothing to do with evolution - the planet could orbit at this rate forever and have no life on it, if the planet did not have or acquire the materials for it. Generally, where life can exist, it does, eventually.

Answer 5

this is somewhat concept, yet you additionally can think of to usher in an occasion of planets that are closer to the celebrity that have suitable temperatures, not too warm, as a results of a acceptable environment, and planets that are extra away that have suitable temperatures, not too chilly, as a results of a acceptable environment. i comprehend you won't be able to, yet that doesn't recommend that they don't exist, and in time, i'm confident that we'd locate one or 2 planets accessible of such.................yet, on the instant, evaluate that it somewhat is a captivating distance, and that the appropriate distance follows interior of somewhat some ninety million to ninety 5 million miles, that this finished selection is a captivating selection, that perhaps if it have been 89 million miles, the ambience could not help life and as for that 6 and a a million/2 mile street, it would look like alot of distance, yet while we are speaking of the area of pluto, would desire to earth help life if it have been as far faraway from the sunlight as pluto? If the respond isn't any, then, there's a sort this is acceptable, and a sort this isn't any suitable, regardless of how extensive that area might seem to us, it somewhat is barely a extensive area if we don't evaluate the bigger photograph, like, even, exterior the photograph voltaic gadget i think of that's what the above idiots have been attempting to get at, yet failing to do such as a results of fact they have a tendency to not think of yet in no way worry, i'm confident in time, we can locate planets that flow against the norm...............we got here across a planet orbitting its celebrity backward in basic terms those days, we are certain to locate a planet that would sustain HUMAN life, in spite of the incontrovertible fact that it somewhat is a lot too far faraway from its celebrity, and we can locate some rationalization to it..........yet, on the instant, that's what we've

Answer 6

You're under a misunderstanding.
The earth's orbital position is not just by chance the right one for evolution to produce the life on our world.
We and everything on Earth evolved in our particular environment - we adapted to the Earth.
If the Earth had formed another half AU from the sun we would have evolved to fit that environment and would think that was perfect. In reality, Earth's orbit is perfect for us because that's how we evolved.

Answer 7

First of all, just because life on Earth likes the temperature between, say, -60 and 140 degrees Fahrenheit, doesn't mean all life is the same. If Earth were hotter or colder, we might have simply evolved to thrive at other temperatures.

However, say for the sake of argument that it really is impossible for life to exist without well-defined seasons at about the same temperature as we have. Still, there are gazillions of planets in the universe, and even the most optimistic of scientists don't expect to find life on the majority. If even one planet in a thousand DID have the right conditions for life, there would still be enough planets in the galaxy to make it likely, not just that we'd evolve, but that we wouldn't be alone. On the planets that can support life, or some of them anyway, life would appear, grow and eventually evolve to the point where the life-forms could ask why their planet is so perfect. Of course, there would be a whole bunch of imperfect planets out there, but they wouldn't have life-forms to ask why their planet sucks.

In other words, if Earth weren't capable of supporting life, we wouldn't be here asking questions about it. We'd be on some other planet, asking how come IT'S perfect.

Answer 8

Just lucky to be in the right place at the right time for evolution. If there is a god and he/she started life then it was millions of years ago and we evolved from what he started. Look at the similarity between Adam and Eve and cell division. Eve came from Adam, just like a cell dividing. When the bible was written people were to dumb to understand this so god told them a tale like you would to a child. Adam the first cell split into two, Adam and Eve, those two cells divided now you have 4 cells, Adam, Eve, Cain, Able, and so on and so on. Genesis should be called " Evolution for Dummies"

Answer 9

evolution did happen by chance. it didn't happen on venus or murcury. Life on earth was able to evolve because our position reletive to the sun is ideal for the existance of liquid water, for the existance of an oxygen rich atmosphere, and a temperature that allows the previous two to occur. evolution did happen by chance.....life did happen by chance.....that is why there is a good chance that it exists elsewhere in the universe.........

Answer 10

Given that there are something like 10^22 stars in the known universe, it should come as no surprise that at least one of them has a planet with an environment suitable for life as we know it.