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Have aliens ever visited Earth?

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Have aliens ever visited Earth? Empty Have aliens ever visited Earth?

Post by ever hopeful Fri 09 Oct 2009, 00:24

Jokes about various weird people apart, I'm inclined to think not. After all, it's only wackos who ever seem to meet them.
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Post by Demelza Fri 09 Oct 2009, 00:28

EH, I implore you to watch this video when you can spare some time. It's brilliant . . . (I'm being serious this time) . . . http://video.google.com/videoplay?docid=6113175402315678182#

This is a full length 1976 documentary portraying the ancient astronaut theories of Swiss-born researcher Erich von Däniken, who wrote "Chariots of the Gods" (posted elsewhere on Google Video). The film is hosted and narrated by William Shatner. Everything from the Peruvian Crystal Skull to the megalith structures in the jungles of Southeast Asia is accepted as evidence for the Ancient Astronauts theory. Cave drawings, old legends, Biblical stories and even some psychic visions of Jeane Dixon are presented as stone cold facts. Eric von Däniken's reputation was still quite unspoiled at the time so all the arguments (even the most far-fetched) are shown with great confidence.
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Post by ever hopeful Fri 09 Oct 2009, 00:38

Thanks. I will watch it (if it's not to long) but right now I'm off to bed as it's twenty to one and I'm at work tomorrow (if the aliens don't get me)
Night.
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Post by Demelza Fri 09 Oct 2009, 00:40

The introduction is a bit boring but, after that, it really does make you wonder about such things. Night hello
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Post by horace Fri 09 Oct 2009, 01:30

zimmy has been in Worst Australia for some years now
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Post by skully Fri 09 Oct 2009, 07:00

I was enthralled by Von Daniken's Chariots of the Gods when it first came out. It's pretty dated these days obviously.

It's all carp but.
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Post by eowyn Fri 09 Oct 2009, 07:06

Of course they have, Sting is one...
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Post by Mick Sawyer Fri 09 Oct 2009, 08:04

No aliens have ever visited earth and politicians are all on a mission to serve the public need.
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Post by skully Fri 09 Oct 2009, 08:31

Fascinating subject but logic suggests that if aliens are smart enough to work out how to travel the millions of light years to get here in less than an alien lifetime, then they are smart enough to know this world is full of qunts wanting to kill each other, and that we are apparently in the process of destroying the joint, so therefore it's not worth a trip to this dreary galactic backwater.

After all, we have been sending our news broadcasts out into space since radio was invented.
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Post by Bradman Fri 09 Oct 2009, 10:50

Yeah they're probably sitting back watching some alien TV and pissing themselves laughing at the soap opera that is Earth.
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Post by skully Fri 09 Oct 2009, 11:49

Well, you'd have to admit, the world having a spaz over a few uni numpties doing a harmless but tasteless skit about some weirdo deceased pop star and his equally eccentric brothers is pretty amusing stuff.
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Post by doremi Fri 09 Oct 2009, 19:29

It's the Japanese. Weirdos.
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Post by furriner Fri 09 Oct 2009, 19:48

skully wrote:I was enthralled by Von Daniken's Chariots of the Gods when it first came out. It's pretty dated these days obviously.

It's all carp but.

Yeah I read him too a while back. Which reminds me of weirdos who published and acquired a following. Anyone remember T Lobsang Rampa? Who was actually Cyril Hoskin from Devon England who 'was a Buddhist monk in his previous life'. In which life he met Yetis, had a hole drilled into his head, etc.

Where's Merlo these days, BTW?
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Post by furriner Fri 09 Oct 2009, 19:49

I like how aliens land only in the USA in books and the movies. Perhaps they want a green card as well?
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Post by Bradman Fri 09 Oct 2009, 20:32

Or a movie deal.
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Post by eowyn Fri 09 Oct 2009, 21:08

Rubbish, do you how many crop circles we have here in Grand Britannia? Thousands, the aliens love us. We don't even have to build mountains in mashed potatoes to get them here. So there.
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Post by footwork Fri 09 Oct 2009, 23:17

Greetings Earthlings,
Do not be afraid, I come bearing glad tidings. Salutations from the planet Wotaloda Taurus.

Our microscopic morphs have successfully probed you, infested you and impregnated you - and you have been found lacking. Mutants now walk the Earth, useless to all. You may recognise some of them.

Your clouds of space dust and marijuana have polluted our world. You leave primitive debris, which we must clean up. You send your tiny toys to make pock-marks in a neighbouring moon. You are Space Criminals.

We have tried to be friendly - see our amusing crop circles and cave paintings, for your entertainment. We have even visited rural areas, rather than cities, so as not to frighten too many embryons at once. (We have found however, that the level of rural intelligence is lacking.)

Our message is this:
If you destroy your own planet that is the choice you make. We understand you are lacking. However, if your vandalism nears our planet, we must protect our own purity.
This is a friendly warning; but beware the Wotaloda Gladiatorial Armed Forces. They have been granted permission to use minimal force, if this criminal behaviour persists.
Do not alarm yourselves. We are here, as the missionaries of olden days - to lead you to a better way, a way of peace. Follow and your future is golden. Refuse and we will destroy you in a nano-second.

Prime Metamorphosis.

PS. Do not look for spaceships. That is so yesterday.
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Post by skully Sat 10 Oct 2009, 10:20

Hehehe, noice. Cool
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Post by Batman Sat 10 Oct 2009, 17:56

ever hopeful wrote:Have aliens ever visited Earth?

Now that you asked the question, that certainly explains Zimmy.....
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Post by Chivalry Augustus Sat 10 Oct 2009, 21:33

No, IMO. FTL travel is science-fiction at the moment in time (it may be sci-fi full stop), and without FTL travel, the likelihood of two races encountering each other is drastically reduced from very, very, very, very, very unlikely to nigh on impossible aka vastly improbable. But still, who knows? We all like a bit of X-Files now and again.
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Post by JKLever Sat 10 Oct 2009, 22:02

That assumes all planets throughout the known universe are on the same tech level.

Oooooooooooooooooooooooh.

/nerd
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Post by Chivalry Augustus Sat 10 Oct 2009, 22:11

No, it doesn't. Had it not been for the dark ages we'd probably inhabit Mars by now. Rather it does take into account that in a 3-dimensional environment, one can only move in one direction. To get to our planet, aliens would literally have had to fluke it here, having been presented with the choice of billions of trillions of directions in which to move. Nowadays, were we to be visited by aliens it would be less of a coincidence due to the various signals that are transmitted across the globe, but prior to about 1920 there'd have been no reason other than absolute coincidence (something which, as I have said, is about a 1 in 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,
000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,
000,000,000,000,000,000,000,000,000,000,000,000,000,000 shot) for them to 'visit' earth. And even were they to obtain our signal, the fastest they could reasonably move is at the speed of light, and with the nearest star in Alpha Centauri being 4.37 light years away, the fastest obtainable time frame in which they could arrive is in 4.37 years - in the very unlikely event that there are aliens lurking in the vicinity of Alpha Centauri. They could, of course, utilise wormholes and all other manner of scientific possibilities, but then, there's the problems of relativity . . .

. . . so no, don't see it personally.
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Post by ten years after Sun 11 Oct 2009, 02:34

Distance is not an issue. Assuming no global catastrophe and technological growth similar to that achieved in recent generations - at some point in the next 300 years humans will travel to nearby stars.

At a constant acceleration of 1g you reach the vicinity of the speed of light in about a year. If this rate of acceleration is maintained the effects of relativity make it perfectly possible to cross the galaxy in a lifetime. This does not require worm holes or any other faster than light travel.

The technology is largely understood now. Finance is the biggest single impediment.

By then inhabitable planets will be detectable by telescope across 100s of light years. They will be the targets of these voyages. Within 100,000 years the human race will have colonized or at least visited every earth-like planet in the galaxy.

Given that the age of the galaxy is greater than 10 billion years this is just the blink of an eye. There are maybe 400 billion stars in the Galaxy each potentially the home of a planet capable of developing this same technology. If only one in a billion of these has actually developed technology to our level there would already have been 400 civilisations capable of colonizing the whole galaxy.

The question is not “have aliens ever visited the earth?” but “where the hell are they?”.

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Post by Chivalry Augustus Sun 11 Oct 2009, 11:06

But the physiological effects of travelling at the speed of light could nevertheless prevent humans from making the supposed journey. Light-speed travel is not a formality by any stretch of the imagination - no progress has been made towards it in 40-odd years of space exploration, so to presume that in 400 or 4000 years we will be capable of attaining something that might not even be possible (from a practical perspective as opposed to a factual perspective - light-speed obviously is possible as light travels at light-speed) is presumptuous. It would also take a couple of geniuses to take us there, and given that NASA is increasingly under-cut and under pressure from the US Government, you have to question the likelihood of them ever having the money or determination to get that far. The better hope probably lies with the Chinese longer-term. Irrespective of all that, you have to consider what I said - how would aliens find us? How likely is it that another intelligent life-form, even if they CAN attain light-speed travel, is at a suitable distance that they can reach us? And furthermore, what is the likelihood that they would set out in the direction of Earth, a planet that was until the early 1900s devoid of any signal indicating that it had life upon it? Considering that the three-dimensional dynamics of space mean that you would have to set off in a constant line for earth to actually reach it unless you made it by an absolute fluke (it's very difficult to start altering your direction once you've got going) - if you began one millimetre to the left you would bypass it by light years. So, whilst statistically extra terrestrial intelligent life seems likely to me, first contact is improbable unless it is by design.
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Post by ten years after Sun 11 Oct 2009, 14:09

As I said, telescopes will soon be capable of detecting habitable planets from 100s of light years away. We will go and check all of the hopeful looking ones out.

You are probably right that the Chinese are the better bet for pushing things forward for the next while. I am hopeful that by 2100 the race will be unified enough and wealthy enough to do these kinds of things together.
Most of us would rather buy cosmetics and luxury cars than explore the universe, hence the slow progress recently. That will change.

It is impossible for a space ship to travel at exactly the speed of light (but it is possible to travel at 99.99999999(etc)% of it. The more nines you add the slower time goes for those on board relative to the universe around them. It will be very difficult but i've no doubt it will be done.

Barring catastrophe we will start this process in the next few hundred years. This should lead to colonisation of the whole galaxy within 100,000 years or so. Whatever the reason for no aliens having done the same thing and arrived in our skies, it is not down to the difficulty of the technology or distance or navigation problems.

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