The search for extraterrestrials | Douglas Vakoch | TEDxGreenville
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- เผยแพร่เมื่อ 16 มิ.ย. 2024
- For over fifty years, astronomers have pointed their telescopes to the sky, looking for signals from advanced civilizations-a project called SETI, the search for extraterrestrial civilizations. So far, they’ve found nothing. But what if there are other civilizations out there, but they’re doing exactly what we are doing-simply listening, and not transmitting? I advocate a new approach to making contact called Active SETI, where we don’t simply listen for signals from extraterrestrials, but instead we send powerful, intentional radio signals to other star systems, in the hope of receiving a reply.
Douglas is president of METI (Messaging Extraterrestrial Intelligence), a nonprofit research organization that transmits powerful, intentional radio signals to nearby stars, in the hope of eliciting a reply. As an elected member of the International Astronomical Union and the International Institute for Space Law, he explores the scientific and societal dimensions of the Search for Extraterrestrial Intelligence (SETI). This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at www.ted.com/tedx
if you close your eyes ... you can imagine Tom Hanks giving this lecture
Diogo Sousa Pinto yoooo that was my first thought. “Is this Tom Hanks?”
Mr Rodgers
lmao. You're 100% right there.
LOL!!
Lmao! 😂
It is amazing that ancient Greeks perceived space in the same way we do today!
From a philosophical perspective, yes it is, but when your doing the same thing for centuries something has to change. Go to the library you'll see there are so many books on certain topics this because its not understood so the same information is then crammed into 100 different books (i.e. Gravity) whereas in the same pool you'll find topics with only a few books because its something that has been mastered and fully understood. I think in its beauty that was in those times, you could see so much more so they developed a curiosity far more craving than ours. We are developing technology that could do some crazy stuff, which opens up quite a few options, however I think we should broadcast to other stars instead of just listening as we have for 100+ years.
@@illproduct8688 beautifully said.
no christian religion, go figure
Cause they “knew”
It is amazing but totally untrue. That statement may be a false attribute to some philosopher back then. In the same way some give false attribute to religious figures for seemingly 'prophecies'. He might have articulated such bunch of words, but the speaker is cheating with the meaning. No way he could have meant that. They didn't perceive space as we do today, its just wrong.
I love this perspective and that, at some point, WE will be that wise, old race of patient beings. Thank you for that! ❤
You can't even get along with humans on earth. What makes you think you're ready to meet aliens? If i were an alien watching you people I'd be terrified.
Yea they want nothing to do with us. I don't blame them because at it's root we are not a peaceful world.
EXACTLY !
Definitely
This is how every alien invasion movie starts.
Exactly. It’s like you being in a dark forest with no idea if there are cougars or bears lurking around you. And then you call out into the dark. That is the analogy of sending radio signals or laser signals in space.
OR: What if radio is so primitive that it simply is not used by intelligent beings? What if there is a way to send signals faster than light? What if we discover how to do this in another 500 years (a cosmic millisecond) and we realize radio is as primitive as we see carrier pigeons and smoke signals today?
I agree. ET would have sorted out lose radio waves across their part of the galaxy as it is a sure sign to say, "Hey we are here! Just come and release from our existing slavery." Reply would be, "Sure, you are now enslaved by us. What sauce goes with human flesh?" 🤣
Your right..primitive..but does a smoke signal not still work today if someone is lost? Do we not still all have radios in our cars? Some primitive things last more then a lifetimes..es: phone land lines.
Absolutely craig your so right , common sense is a great tool
Even if we had that technology, you think the government would just let everyone know their using it.
@@Tonyphotoplus lol
Congrats on the new adventure!!
If they are an advanced species they have heard and seen us already. They saw our wars, our greed, religions, how we handle the earth and thought: "Nah."
They saw this moron and said let him watch his Zebras for a bit longer
We humans are not what there interested in , the lifeforms such as animals are of high trade value !
The vast plant life is priceless to the galaxy trade blocks !
Trade is the number one asset in the universe !
Technology to travel across the galaxy is the most traded commodity !
I imagine any advanced civilization would have been through that as well.
Aliens aren't going to be any better than us. They're likely the product of the same flawed evolutionary process that we stem from. More likely, they will see how underdeveloped we are and conquer us. Isn't that what all those Christian anthropologists and English imperialists do when they meet a new, "less civilized" society? They conquer and force conformity. That's the way it's always been and still is.
So anyway did he see Navy’s ufo confirmation?
3:46 He's wrong, he should have said "Mars."
I was a bit confused by that redundancy as well.
I just caught that also
Same thing lol
I caught that too and immediately went to the comments to see who else did/called him out.. He almost said it 3 times but switched to "that planet" at the last second...
He's not wrong, just made a error... He certainly meant to say Mars
We haven’t been alone for many many many years ago..
We haven’t been alone for many many many years ago
They have always been herexx
need to listen to this gentleman more often
Haven't you heard about the Synchronous Fireflies in the Southern Appalachians? Thousands light up together.
My wife and I have seen UFOs flying in formation, where they come from and who is flying them we don't know. They are an advanced form of travel and intelligently operated, we could not identify them but it was a fascinating experience.
@me hee If that was the case they must have rockets up their arses.
LOL
@@marcomaihofer Yes, before our experience we would LOL, we're not laughing now. Scepticism like yours is not uncommon and understandable, but don't be too quick to dismiss.
So have i
Humans were piloting them, or they were unmanned.
you will be legendary!
A particularly good talk
I'm amazed he never once brought up the risks.
I have huge amount of knowledge in my brain which I am willing to share in person and with people that know mathematics
Very Nice
@C. Fecteau On Wednesday, May 9th, 2001, over twenty military, intelligence, government, corporate and scientific witnesses came forward
at the National Press Club in Washington, DC to establish the reality of UFOs or
extraterrestrial vehicles, extraterrestrial life forms, and resulting advanced energy and propulsion technologies.
The weight of this first-hand testimony, along with supporting government documentation and other
evidence, will establish without any doubt the reality of these phenomena.
"The phenomenon of UFOs does exist, and it must be treated seriously."
- Mikhail Gorbachev
"I can assure you that flying saucers, given that they exist, are not constructed by any power on Earth."
- President Harry S Truman
"I feel that the Air Force has not been giving out all the available information
on these Unidentified Flying Objects. You cannot disregard so many unimpeachable sources."
- Honorable John McCormack, Speaker of the House
"I believe that these ET vehicles and their crews are visiting this planet from other planets,
which obviously are a little more technically advanced than we are here on Earth."
- Astronaut Gordon Cooper
"I believe the American people are entitled to a more thorough explanation that has
been given them by the Air Force. I think we owe it to the people to establish credibility
regarding UFOs, and produce the greatest possible enlightenment of the subject."
- Former President, Gerald Ford
"Of course the flying saucers are real, and they are interplanetary."
- Air Chief Marshall Lord Dowding
"We have, indeed, been contacted perhaps even visited by extraterrestrial beings
and the US government, in collusion with the other national powers of the Earth, is
determined to keep this information from the general public."
- Former Special Assistant to the Executive Director of the CIA, Victor Marchetti
"I am convinced that UFOs exist because I have seen one."
- Former President Jimmy Carter
"It is time for the truth to tbe brought out, behind the scenes high ranking Air Force officers
are soberly concerned about the UFOs. But through official secrecy and ridicule, many
citizens are led to believe the unknown flying objects are nonsense. I urge immediate Congressional action
to reduce the dangers from secrecy about unidentified flying objects."
- Former CIA Director, Vice Admiral Roscoe Hillenkoetter
"I must admit that any favorable mention of the flying saucers by a scientist amounts to extreme
heresy and places the one making the statement in danger of the excommunication by the scientific theocracy."
- Frank B. Salisbury, Ph.D
@@jigglypuff4227
AN ABOVE ALL THEY WERE ALL RELIGIOUS, AN THERE IN IS THE PROBLEM FOLKS.
most people who thinks they're special are mostly not right in the head and had more than one screw loose
Tell us how much of a miracle abiogenesis would be.
My 29 year old son rates this atmosphere very killer!!
I was just listening and I was like “is that Tom hanks?”
iamsuperfritz he does sound like one of his characters
Thought it was John lithgow lol
iamsuperfritz ~ Mr. Forrest Gump.
Sounds just like him!
It's a Steven Spielberg clone hybrid with a voice modifier that makes him sound like Tom Hanks.
Happy to see flanders has found something to be passionate about after mauds death, good for him
question?
The commonly stated range of human hearing is 20 Hz to 20 kHz. Under ideal laboratory conditions, humans can hear sound as low as 12 Hz and as high as 28 kHz, though the threshold increases sharply at 15 kHz in adults, corresponding to the last auditory channel of the cochlea.what happens if aliens might hear in a different hearing range than Ares?We would never hear each other and being able to communicate.SETI is looking for signals but if they are in a different range we would never detect?
I can hear you. The rest of the world can hear you and the people who knocked these buildings down will hear all of us soon!
Sent pictures of Hand signals? How do we communicate with the deaf? Special Needs persons?
The reality is radio waves are universally fundamental because they are electromagnetic radiation. They are photons in the electromagnetic spectrum. So no, we cant hear radio waves, but thats not the point. Our antenna absorb radio waves.
I want you to really think about the question you just asked lmao
Don’t need to wait. They’ve been here for very long time now. Open your eyes you can’t be that blind. Or small minded.
The problem is there is no tangible evidence to support this. Just science fiction stories. SETI is looking for evidence, proof that ET is out there.
Are the USS Nimitz & USS Roosevelt objects/anomalies sci fi stories?
@@TheoriginalTHX007 The Nimitz video doesn't show the object manoeuvering as described by the pilots. The fighter's camera remains locked onto the target. It's not going faster than the fighter aircraft, nor is it performing manoeuvers the fighter plane can't match.
@@stevemumbling7720 seti search with radio frequencies, say they dont transmit using radio frequencies ,
@@jumbo7165 Then SETI won't hear them.
How could have anyone, anyone ever not know that stars have planets ?
I believe they exist here, and been here for a long time, but atd interdimensional in nature, existing outside our narrow spectrum of perception...they phase in, then phase out
Is there life on other planets in outer space? The infinite question continues for SETI. Cheers, to another successful half century! What you are missing is a donate link, which I would have to be physically restrained from contributing to, to no end.
Want to send radio signals into space, at least send some good music (without ads). Better chance of someone actually listening.
I bet Zeppelin would get aliens to come here immediately.
At 3:45 I believe he means Mars
If I show up your military is called, I’m shuffled to an underground base, meet the other visitors while the media make fun of those who saw me first.
Make yourself public to the entire world then, not just the military?
“BRAIN WAVES”. Not radio waves dammit!!
Our only bottleneck for technology is war and politics
Human existence is an invisible blip on the scale of TIME .
Less than invisible blip
I notice on TV on any chanel, wether is retro programs or todays news that whoever I am watching (actors, sport players, people gathered in church, etc.) that they can see me watching them
*Guys, I just made a video about this, just in case you want to check it out :)*
I pray that the brightest among us never get so focused on the things we can't do, that we neglect the cultural and community things we should be doing, for the best results in each family, community, country and this world. Dreamers a few, maybe but not to the point of loosing our best lives, today.
Remember when we got the Wow! signal? We didn't return a signal, we just kept listening. If we send our own Wow! signal, we can expect the same
There are super humans in the world as we speak, each one with different powers seen as almost impossible to believe
Why are you always replying
I know
Calling out into space seems dangerous
I have interesting outerbody experiences I would like to share mines as well.
thats gooodd
If there were civilizations out there that existed tens of thousands and hundreds of thousands of years ago that sent out radio waves it would’ve taken that long to get to us. So it is kind of strange that we have never heard anything.
They're not using radio waves
The moon has no atmosphere so instead we searched the moon.
# thanks tom delong
They are just watching us destroy ourselves and leaving us alone
whats wrong with his right foot at 11:51
Hello and thank you the wonderful information (video) you shared with us. Recently I stumbled upon interesting information from Irina Podzorova Cassiopeia Project,
/ she is ET contactee (communicator) with extraterrestrial civilizations/
/ ET contactee (communicator) transmitting knowledge from extraterrestrial civilizations/
Is everybody in?
Sure...intentionally send messages out into space....what could possibly go wrong?
I was not cool with Carl Sagan putting our location on the Golden Record he sent with the Voyager probes. That's TRUST in the goodness of life. Ive learned organisms can be assholes...personally lol
I am able to decipher just about anything
You don't climb into a cage full of sleeping bears at night and start poking them with a stick.
Warliking. (Correction to preceding comment)
This is professional work :-)
I think there could be habitable planets orbiting around that big boot of his.
My mind power is extremely powerful.
I can't remember the name of the theory but it suggests that all life went through a spontaneous evolution, or that intelligence formed at the same time. Could be on their planet having the same talk because they are doing the same exact things technologically.
What if we end up meeting something like Clark Griswold's brother in law, Eddie? or worse, Preditor...
All these smart people. Why not get together and figure out how to save our world. Earth is beautiful. I dont care who's on first and what's on second.
Novel idea. I think the establishment's approach up to this point is way to transfixed on radio waves. They are already becoming a hinderance to us. Are they necessary? I think the answer is no. You have implied there could be nothing better for long distance communication than radio.
You haven't detected them. They are here.
and i which there was a peace in our world for ever without the wars
Us giving back... We bring you Looove...... We Bring you peace...
The dark forest awaits our whimpers.
Ah. A poet among us street urchins.
The problem with scientists is that they have no imagination. SETI takes all of humanity hostage with their intargalactic transmissions.
This dude have two different size shoes on?
Run Forrest run!
I tell them to be honest with me and tell me if they can see me yet on their TVs or cell phones but they all say no and my mom tells me to shut up or else she will call the cops on me
They're not using radio waves to communicate.
learning to become the teacher...
He makes a good arguement that is fully built on the assumption that aliens will be nice and contact will be mutually beneficial. You talk about paying our dues, but what about our primary fealty to life itself. Shouldn't we be assuming the worst - that this is the only occurance of life in the universe. Shouldn't we be doing our duty as life forms and infecting other planets?
What you say we are alone we never had a lot like one of those movies we are here for some reason
See What Is Around The Environment You Are In
Just go to the local gym if your looking for extratesticles. Seriously, they are playing with us. And there is more than one type of them out there.
What's up with his right leg?
We havent detected other life because we are a test rase, and they have to perfect us before they put similar people out on other planets.
The irony is... That we are capable of this approach. Shame that we're wasting our energy and development in the self... We are better than we know and... we are even better together. Peace yall
Aren’t we transmitting? Tv has left at speed of light for years I thought
The signal isn't powerful enough. Same reason why you might not have service on your phone. Then of course, extremely advanced civilizations might have super antennas capable of receiving the extremely weak signal, but it's unlikely they're watching the big bang theory. Also if they're so advanced, radio signals are probably prehistoric to them. They might have developed faster than light communication, which is kinda essential if you're traveling millions or billions of light years among the stars.
The zebra analogy is perfect, except... none of the viewers (with IQ over 80) would climb the fence at that point and start feeding the Zebra with apples. But sure we would skip the giraffes and watch Zebra for a while and have a laugh.
The funniest part is that people believe that aliens are only like 200 years ahead of us. In reality they are possibly billions of years more advanced. They don't think on our timescale and don't have the necessary attention span to deal with us. (Would you talk to someone who takes 2 years to say hello?)
Moreover, everything we may want to tell them... well, they already know that and chances are they don't even have to be here physically. (UFO craft is sooo 20th century...)
Close your eyes and it’s Tom Hanks hahaha
Why do scientists think radio signals are universal? If a being became aware of a radio signal what could it look like?
So, is there a scientific explanation for every one of the thousands of UAPs reported?
You all keep denying me so how are we supposed to make contact?
I think it would be a great exploration, to just find a multicellular organism in the universe, expecting a stable intelligent civilization at exactly our own stable time is too ambitious.
Too ambitious, there are thrillions of galaxies in the universe, the possibility that we can find a civilize organization is like 99.9999999% Keep in mind we only saw about 1% of what is in our own universe, and that is being nice, not to mention we haven't even visited these planets, most of them is by telescope and that is it, many of those planets could even have life, we just don't know.
@@xdxxdxdxdxdxdxdxdxdxdxdxdx8578 No man, there are no trillions of galaxies, 200 billion is the highest expected.
And not all galaxies are as habitable as Milkyway, even in Milky way the temp goes pity high near the center.
So there are a billion things you can eliminate from your permutation.
And in 5billion years of earth, we have only made it for a century with enough tech to call ourselves species that can explore space.
So, you see earth had more years than NO. of galaxies, What I mean that people should consider timing a much bigger factor than, (Habitable Planets/ Total Planets) is incomplete
It should be like
(Habitable Planets * Habitable Time at a particular portion of the universe)/ (Total Planet * Total Time)
No, a very good depiction, but I guess you understand what I mean.
@@rogerthat365 The fact that we only know the known universe, because keep in mind it is what we know so far, the thing is, life can survive in different ways than us, so we should not compare ourself to extraterresial beings, for example some sea creatures can live deep in the ocean and survive very hard water pressure that a few decades back that we thought was impossible.
You could be right, but base on pure maths and probability its more likely that we are not alone and there are probably millions of more advance civilization out there.
Remember when we thought that we were at the center and the universe revolve around us? Only to realise that we are just one out of many planets orbiting our sun.
We think or want to feel specail but the reality is, we are not.
Intelligent extraterrestrial beings exist in my opinion, but according to the 'Rare Earth Hypothesis' they are very few and far between to make them practically non existence in our own time - the time that humans are and will be around. I think the evidence is pointing to the 'Rare Earth Hypothesis'.
I do not think so. Humans love to think themselves special. I bet the whole Universe is alive with intelligence.
Open Your Eyes
Some of the smartest and brightest people that have ever lived have said this is a bad idea. I'm going to take their advice on this one and so should everyone else.
Why would it be a bad idea? Exploration was always frowned upon by some supposed intelligent persons.
No one has dibs on the thirst for getting out there and trying to see what's on the other side of that "Mountain". Not even that bear that went over the mountain to see what it could see.
Arquaduct?
my wife and myself were lucky enough to see three ufo fly right over us at about 100 ft. hi . tremendous speed and no noise whatsoever . so WE know they are here , the question is why have they not contacted us ?
I hate to be the one to ask but does anyone know why he has that shoe?
this dude survival instinct: BELOW 0
Lots of people call and ask me "Is this a laboratory?" "Is this a Dentist office?" Or show up and ask if I am selling a Rolex watch?
stunning , the besT
They have received our call they are here
Tic tac
The reason why other ET civilisations have not made contact, is because they are just listening and watching...for now, it's safer for them to do that !
Why advanced could they not be behind us
I would like to meet Ted X.
I try to explain my family members but they don't understand big equations like me
Why do we always talk about the most ridiculous ideas first instead of the most plausible. Quite simply, space is too large and vast for civilizations to expand and survive for very long, not sufficient (for most) to ever meet each other. Our galaxy may have, say, 2 or 3 other technological civilizations in it today, and every few thousand years as planet habitability becomes possible and life evolves, slowly, another 2 or 3 more while 2 or 3 older ones die off. It's either that or there are other general limitations to them expanding forever, such as no race ever having the collective ability and will to just keep expanding (assuming you can get out of a solar system at all). It's as simple as that. Boring, but most plausible.
Who here was born in 2004 if so our generation is gonna change the world we’ll be future leaders and I think we have the most interesting time💯💯
Any Genii out there, please share your comments
It is amazing not just slick!
Don't forget Spielberg threw a few million in on it... We are not alone