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If We Heard from Aliens, What Would It Look Like?

May 14, 2019 By

Earth can be a really loud place if you’re searching for an extraterrestrial signal. So how does SETI sift through all the cosmic noise to hunt for alien signals?

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33 Comments on "If We Heard from Aliens, What Would It Look Like?"

  1. Seeker
    May 14, 2019

    Hi Seekers! Our friends at SETI pointed out that the the telescope featured @ 1:10 is part of the Green Bank Observatory, but is not the 100-meter diameter Green Bank Telescope they use for their research. If you're curious about the grounds and how research is done, check this virtual tour here:

    ~ Lauren, Seeker docs producer.

  2. Justin
    May 14, 2019

    Just a thought, but...
    If we wanted to find a signal, wouldn't we fail to find it because the other "alien" planet would [probably] not have the same technology as we do? Especially if that alien life takes a form we dont recognize or are even able to understand exists, and maybe they hope we exist too, sending their own signals out to the galaxy that we cant reach or measure.
    They could have a different planet with different life and different technology, therefore making them unable to communicate the same way we do...
    Idk, I just think that using our normal technology to try and find anything would be useless unless they had similar tools on their planet, emitting the same signals as our Electromagnetic Spectrum, only measurable if they were strong enough and not polluted by so many objects in space from here to there, like beams of light, radio signals, etc....
    Aaaaand yeah, with all that noise pollution, trying to find signals from Earth is incredibly impossible already, but perhaps in the far future, we could try somewhere quieter and with much more space, less clutter to pollute signals?

  3. Velizar Zhelev
    May 14, 2019

    If we saw aliens,what would they sound like??

  4. Master Wave
    May 14, 2019

    "the idea of other life with big brain is good, yes, I agree" - the entire video

  5. Ekko Telsa
    May 14, 2019

    if aliens saw todays memes they would legit fucking leave us lmao no wonder we cant find any of them they are all hiding from us

  6. Broly
    May 14, 2019

    It’s doesn’t make any sense for saying what does aliens look like they literally look like humans or a different type of faces with huge eyes and shit like whatever

  7. John Zyp
    May 14, 2019

    All aliens communicate with extra sensory perception. humans can’t find them because they found planet earth millions of years ago and have tried to communicate but earthlings still refuse or don’t know how to respond to their messages. Radio is a human invention. SETI will NEVER find anything. So stupid.

  8. Daniel Guzman
    May 14, 2019

    What if aliens are so different to humans that they could see sounds instead of listening to them, or hear visions instead Is seeing them? Or maybe they took a trip to earth to show us their existance but Made a u turn because a stupid human said the earth was flat.. but one of the aliens was as stupid as the human who thought the earth was flat, and Made another u turn to continue the trip to earth to tell humanity the universe was just gods luggage full of CD's that were put aside because they only contain rap, and gods mom dont want him to listen to rap.

    May 14, 2019

    SETI is a cover up institution, Aliens have been around since world war 1 if not before and these guys said they haven’t found anything...bollocks

  10. petrol devo
    May 14, 2019

    I would imagine that the only reason SETI is funded is that our government wants the technology first. Other than that, id rather see the funding going toward education, border walls, getting homeless back into society. This just seems like a huge waste of money.

  11. Keyon Dooling
    May 14, 2019

    Before I even watch this video I am so Per pair

  12. Mark Edwards
    May 14, 2019

    Actually SETI is defeated by its own premise.
    Looking at ourselves. In the space of just 30 years, from analogue to digital, and continuous advances in techology, what would have taken 5 minutes to transmit, now takes micro seconds.
    Today, we are producing more data in one week, than in the entirity of human history prior to 1980. Writing, imaging, composing.
    There is little doubt that the cosmos is swimming in signals, from billions of years past. We just can't see it.
    It is as futile as asking someone from 1965 to access and translate the WIFI data that you have recieved to watch this video. They wouldn't even recognise it as a signal ! They did not have the equipment to be able to capture information coming in at such a fast rate.
    So, perhaps we should just give up looking for a signal ?
    Well, not exactly. It is a technological question. Prior to the invention of the microscope the existence of bacteria was just theory. Unless we see it with our own eyes, then it is possible conspiracy theory ? The evidence of the existence of extra terrestrial beings is now so powerful, not just by observation, or the ability to capture instant images, or the ability to mass communicate events. But by the discoveries made historically, the discoveries made by geneticists, the translation of lost languages of antiquity.
    Still, there will be those that doubt, and my usual response is to watch this video link.
    You won't see any images of space craft, or aliens, but that is how we are looking in the wrong places.
    Here lies evidence so complelling, and familiar with most accounts, that it becomes very hard to not accept the truth.

  13. Cole Hinshaw
    May 14, 2019

    I’m just saying, we’re looking for stuff the way we do things, such as scanning for electricity, aliens might not have technology, they might have some completely different source of power that will mind boggle us

  14. Shiverblue1
    May 14, 2019


  15. Shiverblue1
    May 14, 2019


  16. Shiverblue1
    May 14, 2019


  17. FrontPhase
    May 14, 2019

    E-T has left the chat

  18. Msstaui Db
    May 14, 2019

    epics mahabharata and ramayana, it was indirectly mentioned about wormholes, atom and distances between planets, please consider them but not blindly

  19. Md. Faisal Mahmud
    May 14, 2019

    It would be horrible. See the Great Filter

  20. TheToasties1
    May 14, 2019

    Why don't we create a "clean radio signal" day so once a year, everybody shuts down any unnecessary devices so the astronomers can receive better data.

  21. Benny Boi
    May 14, 2019

    Plot twist: There are "aliens" out there but they are literal just humans that are an inch taller then our humans.

  22. Kyle Kessler
    May 14, 2019

    Did anyone realize that the question to the video wasn't answered?

  23. Ziv montenegro
    May 14, 2019

    If we made a contact with Aliens and if Aliens visited Earth the first thing I would do is to look at how sexy they could be,
    Are they more attractive to human beings on Earth?
    If it is, u know what is the best thing to do with it

  24. WeBe Flexin
    May 14, 2019

    They couldn’t find alien life even if aliens went knocking on their doors 😂 we will forever be alone so just hang it up!

  25. Its funny how people think aliens dont exist but come on would we really be the only thing in out entire universe

  26. Zeithri
    May 14, 2019

    Misleading title.
    Still interesting video.

  27. Caleb Kohl
    May 14, 2019

    I'm pretty sure we are alone in our local group. the universe is old and it would have been trivially easy for a civilization to find us or make structures we could observe (eg. Dyson spheres)

  28. Bat3p
    May 14, 2019

    I feel like its unlikely that we will find aliens because their signals could only travel at the speed of light, so the farther away from earth we look the less likely it is we would find something because the older of an image we are seeing.

  29. JBirds Life
    May 14, 2019

    why cant they put a sattelite on the moon to reduce the signal pollution?

  30. Robert Curtis
    May 14, 2019

    It could be a giant alien dog turd😎😎😵😵.

  31. caleb window
    May 14, 2019

    Be happy we did not find an alien species. The fact that they found you or seeing any advanced technology is more than enough reasons to help you understand how far they are from you technologically wise amd how much danger you are in. Whoever finds who first is more advanced by the fact they can travel so far and the other cant

  32. Dark Silver
    May 14, 2019

    Either we are alone in the universe, or we are not. Both is euqaly terifying.

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