Aliens and earth

I have always wondered if aliens were real or not.
Some would say definately, others would say no way.

Personally i would like to get some oppinions.
Could aliens be visiting or have visited planet earth?

In my oppinion i do not believe in aliens and would like to gain a greater aspect of different theories.
I believe that there might be life on other planets, but strongly disbelieve that they are visiting earth.
In order to get from the nearest star to our sun, you would have to travel around 20 light years, thats 20 years at the speed of light.
It is physically impossible to make any amount of mass move at the speed of light because it would take an infinite amount of energy which is impossible to gain. (stephen hawking's book "a brief history of time" goes into great detail about this.)
So if aliens do exist, how would they get or have gotten here?
Were they here before us and simply come from within the earth? Maybe the deepest part of the ocean?

Please express your oppinions.

 

I'll post my main theory and then come back when someone puts down something thats bullshit.


There is, and always will be, an Area 51.

The exact location: Unknown. The government has openly admitted to it, although not stating what was found in it. They have also said that it has been in multiple areas.

I remember possibly two to three years back a reporter was down in.. New Mexico? and came across the complex known as "Area 51". He said that in a couple of weeks he returned, and there was nothing there.

It is so far-fetched an idea that I don't even want to begin to disect the pieces of evidence available.

Are there other forms of life on other planets, not in our galaxy?
-Absolutely.

Are they as functional as us?
-Absolutely not.

 

Yes there is probably life on other galaxies, maybe even within our own, but I don't quite understand why you don't think they could be as functional as us.
We are here because of a series of events landing us an extremely perfect distance from the sun and the formation of oceans and an ozone layer. The universe is indeed much much older than our planet, why do you propose that the same conditions of earth were inacted on another planet at a simply earlier time, and by the course of things, life happened to spring into action at an earlier time than that of earth, would aliens not be more advanced or capable than ourselves?

 

Many people imagine aliens to be green, oval shaped, with large eyes and odd fingers. And hell, as far as the U.S. population knows, that could very well be true. But what I'm trying to point out is:

-Would aliens perfectly form through evolution like we did?

-Would there be a more desperate atmosphere for them to adapt to?

We, as humans, are so lucky, because if one thing went wrong, then our entire evolutionary cycle could have been offset by thousands of thousands of years. It is so complicated to even comprehend, or begin to comprehend, that most people just accept the fact that aliens randomly generated out of nowhere, while in reality, they don't look at facts or statistics.

The statistic of Earth being as successful as it was is about one in three billion, and we landed dead on the one.

 

If there is life out there, they're not trying to find us.

We'd be detecting it (we would actually have a reply to arecibo, or all that radio leakage we've been dumping out into the universe).

So, it's unlikely we'll find something... maybe later in our lifetimes.

 

1 in 3 billion, but there are trillions of gallaxies containing trillions of stars. Leaving practicality that another star system could mimic the situation of earth, and possibly earlier since the death of stars creates new stars. It's said that our solar system came from a nebulae which is essentially death of a star.

 

I do believe there is life other than us in the rest of the Universe. The Universe is infinite, and to think that we are the only life in it is absurd. However, the chance that they are able to visit us is low. You say it is physically impossible for other life forms in the universe to visit us. However, who says they don't have the power or technology to be able to do it, who says they don't have some sort of power that allows them to teleport anywhere in the Universe. or a high-speed vehicle. You are thinking it is physically impossible for a human to realize those actions, but think as an Alien, you don't know what kind of technology they have. Perhaps, even ions more advanced than ours. My point, is that it might be possible for Aliens to visit Earth.

 

The teleportation device is a bit sci-fi. The fact that atoms could be transported to one area of space to another are of space is impossible because the shortest distance between two objects is a straight line, a simple gesture yet a complex one. Atoms cannot teleport across a distance instantly in time, unless time were stopped completely.

The high speed vehicle is unpropable as well. A star that is relatively close to earth is around 1,000,000 light years away from earth.

1. you could never reach this speed because to get any amount of physical mass to reach light speed would take an infinite amount of energy. The simple laws of physics states that nothing contains infinite energy.

2. If you were to get a mass moving at even 1/4th the speed of light, the amount of energy needed to propell mass at such a speed would be so great that whatever you were applying energy to, would become over 500,000 degrees celcius. No atom, no matter how stong the bond of an isotope or alloy, the molocules within would undergo subatomic fusion.

3.Even if you could get something moving at exactly light speed, it would take a million years to get here, and thats only if the star was a million light years or less distanced from the earth, which is like .0000000001 percent of the stars in the universe, like 1 in a trillion million.
so it is highly highly impropably with all these theories, that an alien could visit earth.

 

Logically planets don't need oxygen/water to support life if we don't know about an alien yet, how do we know that aliens need oxygen. And I believe that aliens probably have an super organ that lets them breath unknown gases and hydrogen. And we haven't made contact with them. But I'm making an guess that they exist.

 

Any planet without an oxygen rich environment could not have an ozone layer and therefor would be cooked by the suns solar emmitions each day.*These conditions are much to harsh to support life of any kind. Plus think about energy and food, what would they eat if theres nothing growing, if they were to get they're energy directly from the sun on a no-oxygen planet, they would be cooked because without an ozone layer the sun would blare down upon anyplanet at around 300 degrees celcius

 

Im sorry but you guys that dont think aliens are being completely ignorant. Your only talking about what we KNOW. We dont KNOW that there is a life form else where in the broad universe, nor do we KNOW that these organisms can survive without a form of ozone to protect them from UV radiation or the intense heat from the sun. We dont KNOW that these organisms cant live for millions of years. All we know is that it is impossible for US. The human race. Now im not saying that these 'aliens' do exist but i am saying that they might. For all we know there could be another complete race fully evolved ready for deployment to Earth or any other planet. For all we know, there could be some huge 'galactic war' else where in the universe, the universe is just too large to predict.

 

In order to have concious thought, you must have certain traits. Some of these are vulnerability. Any life form would be vulnerable to certain things.

 

There are life forms that survive in extreme conditions.

Just because we exist, and are adapted to the environment on earth, doesn't mean that all life needs such adaptation.

 

To be alive by definition, you must be able to react. A reaction is a series of electrical signals. Electrical signals require tissue. Tissue is vulnerable.Thus concluding, if you are alive, you are vulnerable to such things as radiation, heat, etc...

 

the closest star to us is alpha centauri which is around 2 light years away. thta means it takes light 2 years to get there. light travels at 186,000 mps. think about it. i do think there is life else where in the universe and could be identical to us maybe. Thers 150 billion galaxies, and trillions of stars, and most stars have a solar system containing it ( our sun is a star, average size star). i do think other creatures have visited our planet, they came from somewhere in our galaxy.... i dont really want to get into detail about this because i dont feel like typing alot : P

 

First of all, light travels at 299792458 meters per second, you're way off.Secondly the distance from us to the nearest star is 5878499810000 miles away from us. That is 5 trillion miles, and we've already discussed how nothing can reach the speed of light, even if it could think about all the facts.

 

lol gd luck on getting yer ans..i have no idea on aliens sorry

 

ROFL YOUR WRONG CHECK YOUR FACTS.
SPEED OF LIGHT IS 186,000MPH PER SECOND
AND THE NEAREST STAR IS AROUND 2 LIGHT YEARS... idk how many miles that is

 

I don't think you get it. Life forms of earth (The only ones that are known at the moment) require oxygen, etc to live, and the ozone layer to survive. On the other planets, we don't know for a fact that they share our necessities for life.

On another planet, we may not know it, but there may be some sort of life forms that have UV radiation as we have oxygen, and they might use it in the same way.

Rules of earth don't apply to all of the galaxy (or universe) if we don't know much about it.

 

We don't use that measure in science.
But the speed of light is approximately 3*10^8 meters/second, he's on the right order.

Nearest star is Proxima Centauri, at 4.22 light years.