Do you believe Aliens exist and have been visited the earth?

If you think about it, if the universe expands infinitely, how unlikely would it be that we were the ONLY intelligent species that was born? There are probably dozens of advanced and more advanced civilizations, we just haven't met them. And for your cheery thought of the day, it is also possible that even though we can't seem to find them, what if they found us first? What would they do? Eliminate a threat? Or try and make peace, because we are NOT going to speak alien.

 

There is not a shred of evidence for the existence of aliens.

 

I tend to accept the existence of aliens [and not the ones coming from Mexico!], since a rational estimate [like Drake's equation] can allow us to imagine not to be the only intelligent species in this universe.

Anyway, just such a calculation gives us some suggestions about the real possibility that two advanced technological species meet.

Anyway, if we think that only one of the two species was able to travel through the space, this enlarges the range of possibilities. Aliens could have visited this planet when we were in the age of Ancient Egypt.

But why? The problem, even limiting the field to our galaxy, is that a planet without an advance technological society doesn't issue electromagnetic waves, so that mankind of the past was substantially invisible to an alien civilization. They were able to detect the presence of a planetary system around our star and [if not too far from our solar system] a planet in the life area.

But why to face a very long [and expensive] travel towards an other star with the possibility to find life? Let's think to the problem from our perspective: today we've got some candidates [some exoplanets look "interesting"]. Which one will we visit as first as soon as we will develop an interstellar travel technology?

You know what? The one issuing electromagnetic waves, since it could host an advanced technological alien species.

About this point, the Earth is "visible" at a distance of about 80 light years [considering a notable density of electromagnetic waves]. In a galactic scale 80 light years are nothing. So that, still today, it's improbable that an alien vessel [space ship] notes our planet ...

 

Resources.

 

Yes on both. With the numbers of planets that we can see already, I feel it's mathematically impossible for there not to be life out there. I also take seriously the many documented cases of people's sightings. not all of them, but there are many from super credible sources.

Then of course you have the cave paintings and other ancient artwork that are just too hard to believe it came from imagination. Many of those early civilizations painted and drew from what they saw.


Yes, and Yes and I hope that before I die we will know.

 

In one of the regions of the galaxy with low star density? The most interesting region of the Milky Way to look for resources is more towards the galactic center. I would say that the median section of the arms of the galaxy [we stay in the Arm of Orion] is the best to exploit about resources.

Of course, if an alien species looks for energy, the galaxy in plenty of energy sources [stars, black holes ...].

 

Well, i'd assume if they're more advanced than us, they'd know something about the universe that we don't.

 

There is more than enough evidence proving they exist...

You claim they cant communicate but then call crop circles "pictures" - I would call that communication...

Crop circles are a fantastic example - those things pop up overnight - and indeed some are hoaxes, but others are so elaborate and random that no human could have made them "overnight"...

 

There was one crop circle I have to admit was strange. It was the binary message we sent of to space returned to us but with a different DNA sequence, body shape, and solar system.

 

Man could I make jokes out of that comment

We are proof of that for instance.

 

Not to mention we have no idea if life can be something other than carbon based.

If it can be that would open up a whole new universe of possibilities wouldn't it.

 

For the record. I voted wrong. I meant to vote "yes but not visited earth" but voted no by mistake.

 

Aliens, The missing link? Christ was called the son of man and the son of God. Hummm

 

The only resources that can not be found in abundance in just about every solar system are biological in nature.

For an interstellar civilization, it would be relative child's play to harvest all of the materials they required without having to enter any gravity well.

 

We may not know what advanced aliens might know about the resources available on earth.

 

we have a very good handle on the matter that constitutes our world.
The only things that are "on here" and not "out there" are terrestrial biologics.

 

It's really impossible, with the infinite numbers of stars and planets, that there wouldn't be other life out there. Somewhere, many light years away, our counterparts are working to try to solve their own planet's problems, by calling each other names on an internet forum.

 

I guess so. I'm not going to pretend to know what a civilization possibly millions of years more advanced than ours know might know about the nature of resources on our planet.

Are resources more abundant on our planet than they are on others? Is there something about the composition of our resources that differs from those same resources on other planets? I have no idea, but other more advanced alien civilizations might.

Maybe.

 

My point was that all non-biological resources on earth can be found in far greater abundance within solar systems and that those resources do not reside at the bottom of a gravity well. Hence it is far easier to harvest.

The only truly "unique" thing about earth is its biology.

 

I get your point; you're not getting mine.

 

There has to be life on other planets. or it's a horrible waste of space.

 

One question that wasn't brought up is that aliens could have existed many years ago but already died out billions of years ago.

 

I seriously doubt that if aliens did come to this planet, they would soon die due to our pathogens.

 

I have had contact from the planet ShmarkatchnaStanSkaNovaZemlyya . I posted that in another galaxy far far away.

 

I didn't vote because I don't know what to think. I suppose if you believe in intelligent design you have to think the possibility exist.
I thought I had a lot more figured out when I was younger but the older I get that's no longer the case.
One things for sure, if I'm ever abducted by or contacted by aliens, I'm not going to tell anybody.