Alpha Centauri. What Does the Closest Stellar System Conceal?
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- เผยแพร่เมื่อ 7 มิ.ย. 2024
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Distances between objects in space are often so staggering that the human mind is barely able to fully appreciate them. Sometimes even light takes thousands of years on end to travel from one object to another. However, among myriads of stellar systems scattered across the vast expanses in the universe there is only one that may be truly called closest to us. There are three stars mutually bound by invisible threads of gravitation that lie comparatively nearby by space standards and naturally attract our closest attention. So what is the Alpha Centauri system like?
00:00 Intro
00:44 How far our signals have travelled
01:31 The Alpha Centauri system
02:10 Alpha Centauri А
03:26 Alpha Centauri B
04:54 Proxima Centauri
07:02 Proxima Centauri b
08:25 Proxima Centauri c
10:45 Breakthrough Starshot
11:31 Ending
#AlphaCentauri #Closest #System #Space #Planets #Kosmo
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What is the music for this video?
Are you affiliated with LIE KILLERS?? YOU USE THE SAME SYMBOL AS HE DOES FOR YOUR VIDEOS .....
I learned about this video through your Telegram Channel...Thank You for the new material. I am anxiously awaiting more and hopefully you will create another hour long episode. Kosmo is my favorite channel on TH-cam.
You say in 2:48 that Alpha Centauri may have a planet-like object with a mass from 9 to 35 earth 2:57 masses & a radius of masses and its radius may measure 3.3 to 7 times that of our planet. If it has between 9-10 earth masses, it would be a rocky or terrestrial planet. However, if it has more mass it would be a mini-Neptune or a gas giant. So, I take the possibilities of life developing in such a place are 1 in 4 or 0.26%. Not such a good candidate.
7:34. How can a surface temperature of 234 kelvin or 39 degrees celsius below zero (-39 C.) allow for liquid water? Pure water becomes a solid at 0 degrees celsius. In comparison, the Earth has a surface temperature of 13.9 degrees Celsius (13.9 C.)
Binary and multiple star systems are the most common in the universe. Single star systems like our own are actually rare.
@Donald Donald ?????
@Donald Donald based
huh thats a cool little fun fact, thanks
@@user-xe2ot9ot8x but it is
"Rare" is a subjective word here, when there are billions of them.
My second favorite system behind our own. Can't wait until the James Webb takes a look.
Regarding the distance I can't wait either.
It's a cool lil system but so is trappist-1. If o ly we could image with detail other solar system. It's such a cruel joke to have everything at your fingertips with 99.9% probably not reached for who knows how long. Would be cool if something would share some advanced tech
@@shplayshiggty7537 ahahaha
Full of surprises
Nerd alert
"In spite of all difficulties, the secrets of the universe are slowly giving way to our tenacity, and every day, space is getting a little closer."
Wow! That line made me smile.
If we'd kept going after Apollo. With a united earth space agency. Instead of wasting resources with inventive ways to murder each other then not using those ways just making a tiny number rich, we'd have explored the solar system by now.
I live in hope
Everyday space gets bigger not smaller
@@ryancarroll3957 You are definitely not alone. Well said.
we are still nothing else then a virus that wants to conquer the atmosphere of our planet
The ingenuity we have sometimes amazes me. We can't quite go the speed of light, and we may never be able to visit too many star systems, but Alpha's star system does- theoretically at least- remain within our grasp.
There is this TH-camr named Cody'sLab who filmed size comparisons using a pea as our Sun, a grain of sand as Earth, and a Football field as part of our solar system. If you put the Sun at the in-zone, then travel to Alpha Centuri, it took him multiple hours of driving OUT OF STATE to get to the location. It was nuts.
And if the Sun was a grain of sand, the nearest next grain of sand (Alpha Centauri) would be 3 km away
@vjm3
*end zone
Yup i saw a vid where the said imagine our solar system was the size of a quarter. Alpha centuri would be 2 miles away.
LEBOMBELGU!!! LESELMAMU!!!
Humans travelling that distance is simply nuts.
Obligatory message to tell everyone to read ‘The Three Body Problem’ by Cixin Liu
Obligated by whom/what?
@@YtubeUserr by myself whenever any shared topics come up in a video. They’re great books and I’d recommend them to anybody who likes these kinds of videos.
Came here to check "Trisolaris" out 😅
Loved the moving diagram of a 3 sun system...just imagine how many different alignments, eclipses, seasons etc exist on the exoplanets there. The Universe is an amazingly mysterious place. Thanks for sharing, just subbed 🙏🏼
The Sci-Fi-Novel Three Body Problem depicts that.
you mean stars not suns
@@Hello-vy3ct I mean suns not stars. A star is simply defined as a celestial body that generates light and other radiant energy and consists of a mass of gas held together by its own gravity. A sun is more accurate in what I convey of an intelligence observing these unique astronomical events. A sun is star that is the center of a planetary system-indicating life as a opposed to the sterility of a ‘star’
"...just imagine how many different alignments... "
No. And you can't make me.
@@tribeoflightband8145 dayum you hit him with it
So the short story is that for people who love the old Alpha Centauri game, there's way too little chance there's a planet in a habitable zone that could stay as such long term.
more of a trisolaris situation
Yes there is!
Alpha centauri B
Proxima Centauri b sometimes referred to as Alpha Centauri Cb, is an exoplanet orbiting within the habitable zone of the red dwarf star Proxima Centauri, which is the closest star to the Sun and part of the larger triple star system Alpha Centauri
If there is in fact a large planet in the habitable zone of Alpha Centauri A, it may have a habitable moon. At this point we don't know anything definitive, other than Alpha Centauri A is unlikely to have any sort of large planetary system. Alpha Centauri B seems even less likely. As for Proxima Centauri, there are planets there, but anything habitable seems unlikely, but not impossible.
@@peteabrh-fairest9463 Red dwarves have dangerous solar flares and solar bursts, also the planet is 99% surely tidally locked
Only a few of Earths radio broadcasts are at 100,000Kw and due to the D^2 law, that signal is lost in the galactic background radio noise at about 2.2 light years. So no, our broadcasts haven't reached even Alpha Centauri. Some RADAR and very high power directional signals yes, but due to angular movements, those have to be aimed precisly at, and track, a receiver to convey any meaningful information. Otherwise, it's just a "wow" moment.
Amen. Facts
This seems to beg the question then, why are we bothering with SETI? All those massive satellite dishes beaming messages into space, I assume with stronger signals that will make it farther, but ultimately it's like covering 0.00001% of the galaxy instead of a mere 0.000001% from our usual signals.
@@Durzo1259 Actually all those dishes are just receivers, they’re just listening. Hopping that someone out there is either broadcasting at insane amounts of power, or directing a powerful beam signal directly to us. (Or at the Star, assuming that someone listening will be in the cone of the signal.) We did send one message, once, from the Arecibo dish. I suppose the “Dark Forrest” theory has kept us from doing it again.
@@lnchgj Hoping
And further in the future, our broadcasts will become weaker and weaker with increasing digital technology that we might as well be silent to anything listening for us, which may be the reason we don’t hear anything from others, unless it’s on purpose. But, by the time we pick that transmission up, they’ll either be long gone or no one here to receive it.
These videos just keep getting more intuitive and aesthetically pleasing!
Read the Sci-fi trilogy: The Three Body Problem. Was an international best seller out of China. About the Tri-Solarans and our place in the Dark Forest of the Universe.
Ah, yes. I was looking for this comment :) I'm midway through the second book in this trilogy. Highly recommend it, even though it's a slow-burn hard sci-fi and may not appeal to everyone.
Dark Forest is the most terrifying thing ever
Trisolaris was basically another name for Alpha Centauri. I wonder why the extremely likely chaotic orbit wasn't discussed here.
You can imagine a hypothetic alien star system of a type 3 civilisation, a black hole as center, orbited by 9 stars, who are in the same fix cycle orbit, and in the big habitable zone are 500 earth likely planets.
3 star systems, who are many in the universe, would be no big issue for such civilisations.
This kind of stuff really intrigues me. Can't fathom such distances with my mind and yet there are much farther distances in the universe. Totally mind blowing
Everyone knows there are Trisolarians living there.
and they will invade us in 400 years
Huh? Triso what?
@@eden20111 Come on, man. Liu Cixin, three body problem reference.
@@v.hamilton5679 sounds more like a dead space reference
The work and production in these is top end. Keep up the excellent work!
It has only on goal from Satan! To open an infinite wish for an eternal life in just reincarnation! And make you forget that you are as particular coming back to god! And there will never be you again only after the near end and after it in judgment day!!! Internet itself is Satan Antichrist net
This guy is an Indian who pays a westerner to narrate it.
@@karupt422 how do you know he's indian? Still indian or not the the production is excellent
@@karupt422 I'm curious, did you have a reason to share that distinction? Good information. I love it that the creator of the video is using others to help produce the video. Yay, more jobs!
You do realize that this is all just bs, right...?
this video just got you a sub, i love anything space related and this just made me feel like a kid again learning about the planets and stars. thank you for making me feel that way again. cant wait to watch all your other content!
So love Kosmo. Teaches me so much in plain beautifully spoken English, stunning graphics that show me what I could see if I were close enough. Many thanks. Never stop your amazing work.
Very well done video . I loved the images transitions perfectly tuned with the speech and sound effects .
Actually it is expected that our radio and TV broadcast range stops being a useful signal at a range of about 1-5 LY away. Physical proof is the difficulty maintaining contact with Voyager I and II.
Some strong TV transmissions ( Berlin Olympics in 1936 ) and specifically targeted radio dish bursts ( Aricebo 1974 ) make it much further out. Generally speaking I agree with you though.
Your videos are among the best on the internet. Thank you so much for all of the time and work you put in, so we can grow our minds. Excellent quality as well.
Thank you . no one else has explained the Proxima system so well . very good animation
Thank you for making this beautiful channel. I just found you guys. These are fantastic, fact-based productions you are putting out and I just want to thank you. I'll support you with a Patreon if I can. Like many other curious people, I love learning more about our cosmic neighborhood!
The best thing about this channel is they stay clear of "Life in space" garbage and stick to facts.
The solid production really clarifies the concepts identified by your solid research. Not just a series of pretty pictures as on many other science channels. Great work, keep it coming!
Ask yourself: who or what measured the temperatures on proxima?
@@promo130 Aliens.
This is the sort of presentation where your mind goes into full absorb-mode and you awaken at the end as if from a refreshing nap. Thanks for the mind-meld!
I love how accurate you are, not only with what we know but also with your wording. If there ever was an objective way to talk about facts, you sir are very close to perfection.
I like when people notice these
@@ipotatosenpai7002 Your English is good.
I always think about if we can even find a way to go 1/4 the speed of light we could be at Alpha Centauri in 17.5 years
nah, gotta spend money on Ukraine, drug addicts, and other bottom feeders, space exploration and science is just not as important
The Homeworld series really gave me appreciation for how tiny we are. Imo not the best rts series mechanically but its atmosphere and soundtrack blew me away.
I love the star shot thing! That’s super cool! If your timeline is correct on the estimate of when we should be sending those out, I may not be alive to hear their findings, but just knowing that our little jellyfish looking things are floating out there in space will be cool lol
if his timeline is dead accurate for launch in 2050... and takes 25 years at 20% Speed of light, id be 73. Might get lucky and be able to witness it
It'll never work
@@chrisfrancis9555 solar sails are a proven concept, and get get extremely fast. the barrier is producing a laser than can maintain strength over super long distances
Surely they'd get torn to shreds by interstellar dust travelling at a relative .2 the speed of light 🤔
@@Wock__ That's what I thought too but it's maybe why so many are sent? Someone could have calculated the minimum needed for a successful flight given a certain amount of failures.
This was surprisingly good! Thank you!
4.4 light years seems puny is galactic terms, but it’s freakin massive like we are talking about a star system 20 trillion miles away!!! Now think of a star 20 light years away, that would be a bigger distance
26 Trillion
@@robertwitkowski6920 thanks for correcting me mate 🙏
I would never correct you, just tweeking the math.
@@robertwitkowski6920 understood, thanks 🙏
Ok kamala harris
From Vega to the Arcturus system, to the Gliese system to the Altair and Ross systems- the Sirius and of course the Alpha Centauri systems - hoping the JWST gets pointed at them and finds more incredible discoveries that help us understand where we are in the Galaxy and whats around us within 50 light years.
In February 2022, a third planet, Proxima Centauri d, was confirmed.
Awesome! I think Anton made a video about it too.
Need to confirm some planets around me im basically the suns twin
It is disappointing to hear that the closest three stars have a very low likelihood to house any planet remotely suitable for our colonies.
Life kept me occupied (as it always does), so hearing that the James Webb had a successful unfurling and is transmitting data, is fantastic news! Also, Breakthrough Starshot is news. Those microprobes are so... out there in terms of design, I'll definitely have to do more research.
Last but not least, this is my first channel view, and your style of reporting had me hooked from the first moment. Great work!
Excellent, particularly the animation containing the three stars rotating around the common centre of mass. Please keep up the good work. Thank you very much for this video.
top work..many thanks.
That was well done. Thanks very much.
You guys ever wonder if another civilization is just watching our planet because it's similar to theirs but still cant reach us? Like they could be watching a video of Earth and wondering if in their lifetime they would ever be able to make contact.
No, because it's not happening, but many people are always looking for miracles abandoning all science ;)
@@ThaGamingMisfit It could be possible, I hope that our closest neighbor has life. I would love to know that there is another species like us that is our neighbors…
@@T0B3573R hope they're intelligent enough to on the way towards us on an exploration mission...all we can do is hope
@@HarwinSingh That's what an Adventist would want.
@@HarwinSingh i'd rather they not be. to make the journey, they'd have to be technologically superior to us, and history has shown me that it is never good for the low tech civ when a low tech civ meats a high tech one.
How very exciting! I had not heard of the other two hypothetical planets in the Proxima Centauri system. I hope they turn out to be something interesting.
Love this video and your calm voice. subscribed.
Utterly superb video, brilliantly done
I was delighted to find this video. I had recently bought all three of the Arthur Templar series for my grandson for Christmas. I have to confess I wrapped the covers of each book so that I could read them all without marking them. I really loved them. I think my grandson will, too. I don’t want to give anything away about the plot, but Proxima Centauri figures in the trilogy. If you like a cool read situated in speculative fiction, then it’s a well-written trilogy and worth a read. The trilogy shares the Banner ‘Arthur Templar and the’ The first one is The Curse of the Nibiru, The second one is The Secret Codex, and the last one is the Serpo Gambit. I enjoyed each one.
I absolutely love this channel
A job well done. It was like a lightening tour of Alpha Centauri. My favorite stars in a straight line.
A very good presentation! I just subscribed to the channel. Please continue with the informative videos.
Your videos are in the top 3 astronomy channels i watch
You should realize how excellent
that is.
Narrators voice is the best of all channels.l must say fantastic work my boy.Thank you
Can you please share the names of the other 2 channels you watch? Thank you in advance...Stay blessed. 😊
I love how uncreative a lot of scientists are when naming things.
"What are we gonna call the closest star system?"
"Proxima."
"What should we call this very large telescope?"
"Very Large Telescope."
Scientists are usually very practical people, and don't care much about things like pompous names or the like. So, if you have to give a name toa very close star, why not call it simply "close"? 🙄
@@ralfsenger Yeah, I get that. It's okay, dude. Deep breaths. 🧘♂️
Thank you guys for great explanation & Animation... Best of luck..
Thank you for this. Up until now I didn’t understand how the orbital mechanics of the Kentaurus system worked.
Me neither, or rather it was different to how I perceived it. It is fascinating.
However, today with our fastest rocket, it would take us about 75,000 years to reach Proxima Centauri! The closest star to our solar system!
I can't believe someone has already travelled there and filmed the stars and planets, hope he makes it back safe.
I had to scroll down a bit to find an idiot questioning the reality of this information simply because we can't "go and see it", but I found one.
@@ManahManah77 it's a joke, sherlock
@@ManahManah77it’s a joke (I hope)
Great video very informative and awesome
Love the content keep up the good work
I don't know why but this was extremly interesting. It would be lovely if you guys considered making more videos explaining the structure of more solar system we have relatively a lot of information about, and what they contain
there is only ONE solar system - the one you live in - with it's star, our sun, named SOL - you should say "other star systems"
Great production. I didn’t realize Proxima centuri had 3 exoplanets
fascinating and incredible video, added to my space notes immediately
Great video! Subscribed right away
I have taken actual photos of Centauri A and B. I managed to seperate then with my 10 inch telescope I posted a video of my results,and showed a comparison with Chandra and Hubble's images. It can be seen on my TH-cam channel called Screedy.
Love your dedication....
What a great video!!! Thank you very much!!!
A much awaited video. After one month almost. 👍🏻
JWST will tell us what we want to know. Looking forward to the fun from June onwards.
Loved the details and the presentation. The only thing I can think of that was missing was a description of the relative motions of Sol and Centauri. Will we be getting closer together over the next few hundred thousand to a million years, or have we already reached the closest point and are starting to separate?
Also, are the orbits of the stars of the Centauri system rotating around the baricenter, or are those orbits pretty much constant? I would also love to know how the plane of the planetary orbits are set around Proxima, to see how the dance looks while the system moves in the galactic orbit.
L to
From what I understand the relative velocities are pretty much irrelevant at this distance unless you want an efficient 1,000,000 travel time (4x10^13km away). I do not remember the source but I think it is either 4km/s or 20km/s
@@spacetomato1020 Found this for reference: www.reddit.com/r/askscience/comments/30tvy8/how_fast_are_we_moving_relative_to_alpha_centauri/
It was mentioned. In 26,000 years the closest star in the system will be only 3 LY from Sol.
Amazing video love this channel soo much
What a cool channel this of yours! Thanks for sharing!
The music of this video is in 5/7
8:02 Yea but if it has enough nuclear components in its core, additionally the title forces from the close proximity to the star might provide enough friction to keep a dynamo going strong. We don't know.
We can only hope.
Best episode about Alpha centaury ❤️
This is the best explaination...ever👏
More. Of. This. Thanks. I'm interested in our neighboring star systems. One of my favorite images ever 1:05.
I hope humans get to take a good look at centauri within my lifetime. Doesn't need to be aliens, but finding another habitable plant there would be so cool
Late in the night, down the wikihole, and here I am. Subscribed' beautifully put together.
Can't wait for jwst data!
Thank you for such an amazing video. 😃
4:48 As King David hath said. O LORD You spread the heavens out. Like a curtain.
Do you people get paid to go around doing this in every fucking science video? If you don't you are wasting your time.
Amazing vid, once the James Webb Telescope is up, I wonder what we're going to find.
Excellent video, my man.
This is the only channel I watch the ads all the way through. Gotta support my favorite content. Keep it up!
It's doubtful our radio signals are comprehensible after passing through our heliopause and that of a receiving star. Besides which those signals were not configured for transmission through interstellar space. By the time they could be received, they would truly be noise.
@@MPeaches1958 😂😂😂
Utterly undetectable within a couple of light years
@@MPeaches1958 considering they have a song called "mothership connection (star child)" that makes it even funnier!
@@dragons_hook
Considering the aliens may travel to us and made us to make funky songs for their own entertainments light years away in their homie planet.
@@MP-vc4nu that would make total sense. Funk itself is definitely not of this world! Lol
Im been missing out on these videos lately 😩 thats cause its been a month lol. I need a new James Webb video 📹
Very informative. Thanks
Thank you for doing this video! Thank you for all the hard work you did to make it! I love it 😅👏😅
Alternative Names for the Stars
𝛼 Centauri A: Rigil Kentaurus
𝛼 Centauri B: Toliman
𝛼 Centauri C: Proxima Centauri
Fun fact: the ort cloud is more than 7,450,000,000,000 km away from the sun(0.78 light years or 50,000 au) not one light year in my speculation
I was just thinking about that. The Kuiper Belt is around 200 AU out, while the Oort Cloud is between 2,000 and 200,000 AU. This tells me that there may be a similar cloud around the entire Alpha Centauri system.
Amazing work mate🤙
Thanks for sharing really enjoyed this video.
I would like to hear about the time dialation affect on other planets and stars.
to experience any significant time dialation you need to be pretty deep in a strong gravitational field. If you are thinking similar to earth mass planet orbiting a way bigger star... there is not going to be much difference when it comes to the relative passage of time.
However, today with our fastest rocket, it would take us about 75,000 years to reach Proxima Centauri! The closest star to our solar system!
The best thing we can say is that the star system is close by. It would make for some interesting photos for sure. It's doubtful humanity will ever leave the solar system but we could send robotic craft to check things out.
Fantasy is more than facts
fantasy is more than facts? Wtf does that even mean ?
F Y Self. Understand that?
Well, for thousands of years, the idea of actually going into outer space or even flying off the ground probably seemed completely impossible. I mean, if we could achieve that much.. in that little amount of time, I don't doubt at all that we could see humanity exploring other stars someday tbh
sir, yes please. Lets keep in touch. Nice to have such a refreshing video to watch. The voice, music and the graphic is so captivating. Thank you very much. It gives us a chance to explore in our minds. The graphics between the stars was brilliant. It felt like, I was floating close to the star. That laser powered probe idea sounds a phenomenal as well. Nice thinking indeed! keep going humanity! I am with you!
What the odd of three star having a connect bound with each other happen to be the nearest star to our solar system?
I'm surprised you guys don't have more subs... This channel is worthy of so much more.
Excellent video, it is factual, well structured, with beautiful animations, good narrative en diction
awesome info !!!! maybe you can make an extended vrsion for this topic :)
I think I heard Proxima B has a 3/2 orbit like Mercury. Also the BLC-1 signal was detected very near Proxima, which later was claimed it was interference. Strangely the Toliman mission is being launched to look at the system!!!!
We wouldn't know about the BLC-1 signal without a leak to the press. Hopefully the whistle-blower is still alive, a dangerously hot topic.
@@rikib.3444 Yes and that! Strangely they said it was interference, but how do you steer off the target / source and it drops? Something doesn't smell right with this.
You guys quickly became my favorite channel in regards to the cosmos. The quality of your content is just parsecs above the rest; however, it seems lately the rate at which you release content has slowed further and further, and the length of said videos have decreased tremendously as well.
What a shame, as I would refresh the home page every day in hopes that there would be a new Kosmo video out.. but to no avail. Here is to hoping you all churn out some fresh content with some meat on them soon.
Makes me think... The Adrift on a Sea of Stars series has several sequences at Alpha Centari. One of the novels imagine a planet around Alpha Proxima, A planet was discovered with a similar orbit. The books mentioned the Alpha Centauri flares. I don't recall the Centauri B flares being mentioned.
However, today with our fastest rocket, it would take us about 75,000 years to reach Proxima Centauri! The closest star to our solar system!
I can't remember the last time I saw Alpha Centauri must have been about 6 years ago when I was in New Zealand.Canopus more recently, about 3 years, from a hotel rooftop in Muscat, Oman.
Proxima Centauri B planet sounds very similar to Io moon around Jupiter, similar difference in size ratio, similar orbit - and Io is NOT a pleasant place to be: high radiation from Proxima Centauri star which is a flare star, multiplied by the strong magnetic field like Jupiter has causing X-rays; and also lots of volcanism due to the geological effects of the tight orbit and slow rotation. That slow rotation would also minimize B's own magnetic field, as it does Io; leading to more radiation getting through and less ability to keep any air.
On the other hand, Io has a ring around Jupiter because of all the gases in its orbit, I wonder if Proxima Centauri B planet would have less of that due to its greater gravity, or a bigger one?
Beautiful video Kosmo!!! I learned a lot of info 8)
I can't remember which ancient civilization it was, but I saw on the History Channel where these people from long, long ago knew Alpha Centauri was a dual star system despite it not being something you can see with the naked eye. I've always found that very fascinating.
Dogon people africa
@@real183 Wuz they kangz?
Nice work Kosmo 👌🏻🥇
i like your quieter narration style
Onc you truly grasp the size of space, I think the natural conclusion is that intelligent life almost certainly exists elsewhere. Our star is not at all special, and if life could form on Earth, my feeling is that it also originated on other planets.
I really wish I was still around when humans finally make contact with other life. I think it will happen eventually, but not for a very, very long time.
And if space is somehow truly infinite there's a 100% chance everything that could ever happen is happening.
I tend to think that while life in the universe is probably plentiful, INTELLIGENCE (alien technological civilizations) is exceedingly rare.
Just look at our own world's evolutionary history: out of the billions of species that have arisen on earth over the last 3.5 billion years, only ONE of those has produced a civilization-building species. Just ONE. Out of BILLIONS! And our species' journey on that path took a great number of events to happen 'just right' for our abilities to outpace simple animals. Its the very definition of an "extremely low probability event."
Intelligence on our level to create technology & build civilization is clearly not a requisite for survival. So, I tend to think that the frequency of this occuring on a universal scale is extremely low.
So while the probability of life in our universe is probably high, the probability of other intelligent space-faring civilizations coming to earth to meet us is probably science fiction. And nothing more than that.
(Also... Even IF there are civilizations out there, the probability of any "alien civilization" occuring at the same time as our own is infinitesimal. WE really just started being a "civilization" for only a tiny fraction of the 300,000 years of our species' total existence. Humans didn't even invent "civilization" or even farming until 5000-8000 years ago... and we were around for 290,000 years before that. *And thats 4000 years of human civilization out of the 3.5 BILLION years of the total history of life on this planet!!!* So the probability of any other civilization maturing in the same time period as us, even to within several thousand years of each other, is extremely low.).
----------
And my comment above doesn't even take into account the astronomically huge (maybe even physically impossible!) Issues associated with
1. The near impossible tasks of making ourselves visible to others within our galaxy, and/or of detecting others' presence within our galaxy.
Our entire history of emitting radio into space has only resulted in a bubble 200ly in diameter. In comparison to the galaxy, this is a tiny zone. Its like a salt grain on the edge of a dinner plate... And any civilization on that 'dinner plate' thats not winthin that 'grain of salt' BY DEFINITION can't detect us!
(And even within that tiny 200ly RF bubble, almost ALL that RF energy has reduced in power to be basically indistinguishable from simple regular background noise. Due to the inverse square law of RF power to distance. Our non-directed Radio signals, which is almost all of our broadcasts, will be unresolvable past just a few LYs.).
2. The perhaps physically impossible task of interstellar travel (certainly beyond our small corner of our own galaxy).
3. The issues associated with numbers 1 & 2 above are multiplied exponentially when considering them outside our own galaxy! Simply put... We're not detecting anything (let alone travelling) outside our small tiny corner of the universe as a whole. At very best, we're stuck in our own galaxy forever.... and most likely, within a small portion of it. The larger universe is not accessible to us, nor is our galaxy accessible to "others" in other galaxies.
*So at least for these purposes, our little mikyway galaxy might as well be our entire universe.*
Do you believe that contact is guaranteed to be a positive experience?
@@demartin975 That’s an interesting question for sure but we can only speculate.
I believe that if an alien ship arrived at earth tomorrow, it would be more likely it was a positive meeting. They would be far more advanced than us, having mastered interstellar travel, and I don’t think they would see us as a threat. It wouldn’t make sense for these particular aliens to travel all the way here just to wipe us out. I doubt they would be here for resources, as it would make more sense to obtain resources from anywhere else in the Universe that wasn’t home to intelligent life forms.
Of course, that’s purely speculation on my part. There are countless possibilities when it comes to first contact.