Do aliens exist at all?? i seriously doubt thier existance.what has science got to say about their existance?

Answer 1

By the sheer scale of the universe to it is mathematically sound to say that we are not alone in the universe to say other wise would be ignorants though understandable the human Psyche loves to think that it is unique a king among beast but that simply isn't true. if we were the only life on earth i could possibly understand this but looking at own planet proves there is life elsewhere we have organisms that never see the sun and yet they survive by think of life just like ours we fall into that whole thing of an intelligent species must look and act like us. but if extraterrestrials are capable of inter planetary travel why would they even bother to stop in at this most apparently backwater place of a planet. one might think that i am being humerus or even naive but the sheer mathematical equation proves that there must be life of some form out there i could be completely different from us i could be us looking into a metaphorical mirror. but life is out there

Answer 2

IF you are asking if the aliens have come to The Earth from a distant solar system, I don't think so.

But if the question is just if somewhere some aliens exists or have existed, I would say YES.

To the question: Why they have not call us? Well, we haven't too much time sending electromagnetic waves to the space. Some time would be necessary to be detected and the same time to received the answer here. Maybe they don't have the star Vega.

Answer 3

I have never met one. Let's define alien. An intelligent organism living on a planet outside of Earth. Your presupposition is that Earth is the only planet in the Universe that is able to support life. I find that hard to imagine. There are about 100 billion stars in the Milky Way galaxy. We are still in the infancy of our exploration of space. We have so far discovered 50 planets on other star systems. Rationally, we can only assume that many, in fact most, stars have planetary systems. I'll let you do the math. Now, the Hubble telescope has determined that there are at least 125 billion galaxies in the known Universe. You may have to get a calculator out at this point.
It looks like there is not life outside of Earth in our solar system. However, we have found evidence of water on Luna and other moons and Mars. The elements of creation: hydrogen and helium have broken down to heavier elements the same way throughout the Universe.
There are many factors needed to produce life on a planet. An iron core, an atmosphere, even the size of Jupiter has affected how much water the planet Earth has. However, these factors are not unusual nor uncommon in other star systems throughout our galaxy or universe.
I can only conclude logically and rationally based on scientific information that life is not unique to our planet but, on the contrary, is a quite common occurance. A recent experiment was conducted by space scientists who constructed 44 different scenarios on conditions needed for the creation of life on a planet. Despite the wide variations in the parameters of the experiment, EVERY ONE of the conditions created life.
Think of it this way: to every other life form that exists on another star system it is YOU that is the alien.

Answer 4

They definitely do exist and science already has the proof. But it depends on which scientist you wish to believe. There are many photos and videos of UFOS. There are eyewitness accounts of alien encounters and abductions. Cattle mutilations and crop circles. Our own astronauts have reported UFO sightings while in space and we have followed strange objects on our radar screens. If you are one that has never experienced or has never had an alien encounter then it is a very hard truth to believe. But listen to the ones that have had such experiences. Some will be just a made up story, but some will be the truth.

Answer 5

Basically what everyone else is saying can be summed up in the Drake Equation. Dr. Frank Drake is an astronomer and astrophysisist that came up with his famous equation in the 1960's, it looks complicated but really it's not:

N=R* x fp x ne x fl x fi x fc x L: Where

R* is the average rate of star formation in our galaxy
fp is the fraction of those stars that have planets
ne is the average number of planets that can potentially support life per star that has planets
fl is the fraction of the above that actually go on to develop life at some point
fi is the fraction of the above that actually go on to develop intelligent life
fc is the fraction of civilizations that develop a technology that releases detectable signs of their existence into space
L is the length of time such civilizations release detectable signals into space.

Basically all that Dr. Drake was saying is the infinite size of the universe it is statistically improbable even if life is rare and civilization is rare and the chance of finding it is rare, there is still a very good chance that other life exists and that humanity will one day contact another civilization. Plug in some numbers and see what you come up with, it can actually be fun.

Answer 6

Science is basically stumped on this question, there is no right answer.

The universe is tremendous in size, and it is likely that somewhere in that vastness exists another form of intelligent life. But that does us no good, the scale of space is just too large. What we need to look for is life within our own galaxy.

The Milky Way is estimated to hold between 200 and 400 billion stars. It is therefore probable that at least some portion of those stars contain planets capable of supporting life. In fact, it seems likely that many planets capable of supporting life should exist.

But if that's true, where is everybody? If you suppose that there should be a vast number of extraterrestial lifeforms out there, then you'd say that some percentage of that life should become sentient, and yet another percentage of them should become civilized. Then you have to think, given that the estimated age of the galaxy is 13.6 billion years, and the estimated age of life on Earth is only around 3 billion years, it would stand to reason that alot of those planets capable of supporting civilized life would have gotten a head start on humans by many, many billions of years, during which time they would have the oppurtunity to reach truly staggering, god-like levels of technology. But where are they? This is the Fermi Paradox, and no one has an answer to it.

Answer 7

I love this question. I only produce a couple facts on this. Firstly if you look at our location in the universe of course we are in the Milky Way Galaxy and we are not even a speck (not just us, but our sun and the entire solar system) Firstly it is hard to believe we are the only form of life in the Milky Way, let alone the Andromeda Galaxy and for that matter the millions of other galaxies yet to even be discovered yet. Its a probablility game.

I once saw a poster with a mountain view and the moon directly over and below it it said "Two possibilities exist: Either we are alone in this universe or we are not, both thoughts are incredible." I always liked that, rings pretty true. To be the only form of intelligen life in that much space is pretty hard to believe and yet incredible if true.

Answer 8

There are 125 BILLION GALAXIES are arrayed throughout the UNIVERSE TO THE LIMITS OF PRESENT OBSERVATION.Our solar system is just a tiny dot in the vast space.Even this tiny dot measures 49.5 A.U. (astronomical unit) and lies in the the ORION SPIRALARM ie. about 25000 light years from the centre of MILKY WAY GALAXY. In this back ground we have to visualise the alien questions. Of course intelligent signals are said to have been received which scientists are trying to decode but in vain. Further scientific research may find the answer. As such we dont have evidence. Absence of evidence does not mean evidence of absence. Our scientists are yet to find out.Before that we can not come to a conclusion.

Answer 9

The Universe is so large that it is quite possible, maybe even probable that there is life on other planets. Such planets may be millions of light years away, maybe in other galaxies. There is no guarantee that any of it is intelligent enough to come in out of the rain. The chances of extraterrestrial beings buzzing people on this planet, landing here and there and generally scaring the pants off people in isolated cornfields are so low as to make the assertion that they have arrived just incredible.

Answer 10

Science says the elements of life are abundant all over the universe, and the conditions to start a similar evolutionary chain to the one that produced us are common in the universe. So science, while not having any proof that there IS life elsewhere in the universe, says that there no known reason why there couldn't be life, including intelligent, technological life, elsewhere in the universe.