Tabby's Star - A Mystery Finally Solved? | Answers With Joe

Tabby's Star, or KIC 8462852, took the internet by storm when it was speculated that it could be the home of an alien megastructure. But recent research seems to shed more light on the mystery.
Check out the TED talk by Tabetha Boyajian here:
• The most mysterious st...
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LINKS LINKS LINKS:
SciShow Space on Tabby's Star:
• A New Idea About Tabby...
Isaac Arthur on Tabby's Star:
• Tabby's Star
Seeker on Tabby's Star:
• We’re STILL Not Saying...

[@scottl8973]

Glad you explained tabby because I did not know that was the name of this topic.

[@xjdfghashzkj]

For some reason, you remind me of Charlie Kelly but in an alternate universe where he's literate and competent.

[@ellispress7374]

James Blackburn Finally someone else who sees the similarities

[@xxCrimsonSpiritxx]

my god THIS IS WHO JOE REMINDS OF! I DIDN"T EVEN KNOW IT UNTIL NOW !!!!!!!

[@justfortier]

Even his voice is kind of similar in tone, just Charlie tends to have higher pitched inflections when he speaks.

[@rs180216]

I thought it was just me who saw this. I was thinking about it earlier this week during a binge watch 😂

[@habitsrabbit]

I see it..but does Joe know anything about bird law? I doubt it.

[@starbrand3726]

You are speaking as if the "aliens" at Tabby's Star are native to that region. Young star, yes, but old tourist aliens.

[@donrobertson4940]

The cruise ships are getting a lot bigger ...

[@starbrand3726]

@@donrobertson4940 And faster, and they go pew, pew, pew.

[@dirremoire]

Probably not aliens, but a gigantic collision in the habitable zone is a big cop-out. It would have to be truly enormous, enormous enough to explain a 20% dip and it wouldn't explain the brightening events either. Also, if if the long-term dimming is "only" 1%, that is still unprecedented. Lastly, I have real qualms with the contention that it would take billions of years for complex life to develop on other worlds. It might be the case that it took an unusually long time for complex life to develop on Earth. Again, it is probably not aliens, but the mystery is far from solved.

[@skoockum]

Please look up the term cop out. Science is in the business of examining data, offering and testing hypotheses, and developing explanations. It's expected that some hypotheses will be found wanting, but that isn't a failure, it's an essential part of the scientific process.

[@alanfriesen9837]

I'm not a scientist but it seems to me that if you take an object whose opaque components are compacted into a sphere, like a planet, and crushed it into dust which spreads out that the total light blocked by the dust would be greater than that blocked by the sphere where so much more of the matter is in the shadow of the object's surface by a large order of magnitude. If you had two gas giants collide there would result an awful lot of previously in-the-dark matter newly exposed to (and blocking) the star's light.

[@WestOfEarth]

David - I think you have a point to an extent. I've heard from other scientific sources that Earth in fact isn't nearly as ideal a place for life to start and evolve as it could be. All this to say, I don't think we have a good scientific understanding of the minimum time it would require to reach complex intelligent life.

[@alanfriesen9837]

With the one example we have, out of one billion years of complex life forms with god knows how many species we are aware of 1 species that has the intelligence and life cycle necessary to establish civilization. That species has been establishing and maintaining civilizations for let's generously say 10,000 years. Of course there are a hell of a lot of planets out there also.

[@joescott]

I agree it's not solved, most things in science are an ongoing process.

[@GreenShortzDIY]

Star wars really happened! Joe just proved it. :-) Interesting video. Really enjoy the channel, Joe. Happy to be a Patron.

[@Conceptcreator]

Aliens I am telling you xD

[@joescott]

Just wait until TESS gets up and running this year. God knows what we'll find.

[@spiritualanarchist8162]

@@joescott Mate ! Why are you discriminating Aliens ! I'm watching your old videos because my planet is in lockdown, and i can't help noticing you seem to diss Aliens . For your information, I happen to have a second home on Tabby's start so ..Hah !😉

[@deultima]

Disappointed it's not aliens, but so impressed by the collective that came together to help solve the mystery.

[@peckerwood1810]

As an Engineer and armchair Astronomer I do love love a good puzzle .) Quote "I don’t have to know an answer. I don’t feel frightened by not knowing things, by being lost in a mysterious universe without any purpose, which is the way it really is, so far as I can tell. It doesn’t frighten me." - Richard P. Feynman

[@simul8rduude]

"cus that's my job...and I go to work." Really liked that. Lol

[@austinwitt9032]

I like your videos, hope you know your doing good and don’t get discouraged!

[@RockHudrock]

Austin Witt Or if he gets discouraged, keep doing videos so we can see his discouragement and learn from it or at least engage in schadenfreude.

[@farpointgamingdirect]

"I didn't hear the question, but the answer is ALIENS"

[@MCsCreations]

No... BORGS? :(

[@joescott]

I wonder what kind of dimming a giant cube would create...

[@MCsCreations]

Joe Scott No, forget about a cube... I mean that HUGE structure where the BORG's queen lived. (I don't know if you watched Voyager, but they showed it really well.)

[@Blaydelk]

I think even a giant sierpinski pyramid would leave s signature where blue and red light were reduced. I think it is fine dust as well. The light getting through a giant fractal structure would still contain most of the blue light unless the structure were extracting it for it's energy. The simplest answer is best for now, I think it is fine dust and ...I believe aliens are likely. Let's face it why would aliens waste all that red light?

[@kylegoldston]

That was a nebula that she lived in.

[@joedigger9919]

No borg's but maybe........PORGS?

[@captainanopheles4307]

Yay, the universe is dull again! Thanks science!

[@Conceptcreator]

Dull? uhm... no?:P

[@Conceptcreator]

Captain Raz scammy? No way...

[@mickelodiansurname9578]

Scott Johnstone maybe they power their spacecraft on puppy dogs dreams... Who knows? But if we are making shit up anything goes ehh? The power source you are looking for is the same one that powers the sun.... Nuclear fusion. The fact you admit you don't know what that is but think there's alien spacecraft sort of says a lot.

[@joescott]

No, he's right, anybody who doesn't present every shred of info ever thought up on a subject is running a total scam.

[@markus5888]

Dull!? Dude, he just told us, the death star is real! that is very undull :D

[@1locust1]

I really, really wanted to believe it was the debris from the exploded Death Star but you're probably right about this being a natural phenomena.

[@devinfaux6987]

Fun thought for those disappointed in lack of aliens: the aftermath of a recent planetary collision may be one of the few environments where you might find a debris field as dense as certain cinematic "asteroid thickets." So if you want to re-enact the chase sequence from Empire Strikes Back, you now know where to go.

[@gusbisbal9803]

She is not a PhD. That is simply an award given after presenting some work. Her actual name is Tabby. What we do doesn't change who we are. Fight wars, discover things, run businesses etc. People are people, no matter what they do.

[@TiberiusTormentia]

"Would you prefer another target, a military target, then name the system...! I grow tired of asking this, so it will be the last time...Where is the rebel base?"

[@resistradio4489]

The rebel base is.................. inside Uranus !!! Bahahahahahahha !!!!!

[@ronschlorff7089]

@@resistradio4489 easy one; butt still a good joke :D

[@grandmofftarkin6415]

Rebel base is earth.. You may fire when ready

[@troys9222]

Found it: mightymega.com/wp-content/uploads/2014/09/falcon_guitar_1-620x826.jpg

[@matthiasnagorski8411]

It's on Dantooine.

[@montyparata4914]

Joe: "if you were paying attention..." I feel like I deserve some gold stars at this point!

[@MrKydaman]

"I go to work." Shows pic of Kool Moe Dee Lmao!

[@hotaruishere2133]

The "aliens" part with the THX theme killed me 😂😂 his facial expression was glorious

[@on1yadam]

Darn, tabby star was playing bumper planets again.

[@joescott]

With no seats belts. Total safety violation.

[@bfuzzy79]

Adam Spencer Explain to me why you think two planets colliding would result in anything but space rocks of varying sizes? Apparently the same thing happened in our corner of the galaxy and we got the asteroid belt which is odd if such an event can produce a *"fine dust cloud".* The fine dust cloud bs is well bs the only way you get a dust cloud as a result, is if both planets were made completely of dirt! If not you get an asteroid belt because the explosion would expell more of the rocks than it'd destroy

[@on1yadam]

Brandon ask go ask an astronomer.

[@bfuzzy79]

Adam Spencer How would an astronomer be able to explain why *you I repeat you* think two planets colliding could result in a fine dust cloud? No astronomer that isn't yourself would know why so, no I will not go ask one. Only you know the answer to the question so I've no choice but to ask you if I wish to know as well!

[@on1yadam]

Brandon and *I REPEAT* go ask an astronomer. That's what they are paid for.

[@martinpsi2705]

Finally, the mystery stays a mystery. Nothing new in this video! Thank you!

[@carlosoliveira-rc2xt]

Mystery solved! We now know what it may or may not be.

[@anD4riL]

I really like your videos but could you pls show also how much it is in the metric system, like subtitles only for units. greetings from Germany

[@joescott]

I've been getting better about that.

[@katrinadelong1883]

Your channel is new to me. So far I Love it! I'm a big science nerd too:) Thank you for the awesome videos each week!

[@Eldel_]

dat alien meme hahahahaha

[@joescott]

Should have fixed my hair.

[@DhavalBrahmbhatt2627]

Recent follower, very happy to know you are doing this full time. Wish I could do something like that. Good work, keep it up Joe !!

[@RavenIsAnArtist]

3:09 Yes officer, he's being doing illegal substances-

[@tabbyeq2185]

Bahahahahahahaha

[@jmadig]

I wholeheartedly appreciate your reference to the work of Kool Mo Dee. Furthermore, I would like to subscribe to your newsletter.

[@erichunter4545]

Yeah, he had a career before "momma said knock you out". (Takes off the star trek shades) 😁

[@danielbaulig]

Question: There was a second reason why a dust cloud was ruled out originally, other than the star being too old for a proto-planetary disk. That was also the main reason for a comet swarm being the very first suggested explanation: a dust cloud should be giving off a high amount of infra-red radiation from being warmed by absorbing the stars other wavelengths, heating up and re-emitting that energy as infrared radiation. But that wasn't observed and thus it was assumed that whatever is blocking the light must be very cold and not heating up significantly (icy comets would fit that description). What has happened to this problem with the dust cloud explanation? Has this been resolved for the dust cloud theory to become more traction again? I would love an answer and hope that either the community or Joe can help me out on this.

[@Dorian_sapiens]

Good question!

[@tomasshade6065]

Was wondering the same, hope someone answers

[@mickelodiansurname9578]

Daniel Baulig Its a valid point. But if the collision happened relatively recently then would the cloud have absorbed enough heat? If it was composed of silica and metals maybe it would reflect back at the star and never heat up enough. Speculation on my part... But my point is its down to what the opaque cloud is made of right? That relies on what the planets were made of... OR what the resulting collision turned the debris into... For all we know its been melted to some sort of glass or crystal... That'd do it right?

[@twirlipofthemists3201]

Daniel Baulig A collision would start out hot, too, due to the collision.

[@kd8opi]

Looks like a job for the Webb space telescope, which has the resolution in infrared to answer this very question.

[@trashfowler6128]

Just subscribed this 17th Monday morning of September at 1:07 a.m. . New Mexico here. I LOVE KNOWLEDGE!!!

[@TwoWholeWorms]

Even if it isn't aliens causing the dimming, KIC 8462852 is still _really_ interesting, as we haven't seen anything quite like it anywhere else, and that is fascinating. :)

[@cristian-ionutapostol8018]

Never heard of Tabby's Star, so thank you for the explanation.

[@cams9557]

you’d make an amazing college professor

[@Greever88]

Does any1 remember which other episode Joe uses that awesome "Aliens" meme? Cracks me up every time

[@GerzonChon]

"Hahaha. Nerds are clever"

[@ronschlorff7089]

Yes, damn clever! Thank them for the world you live in today;... or ask for an apology!

[@neverenough5243]

@@ronschlorff7089 LOL Ron! :D Why did you delete your rude comment on which i replied to nicely? xD Instead of deleting it, you should be the one asking dolts and stoners for an apology. That wasn't nice of you bro... Like i said in my comment on your dumb statement: You are not clever OR a nerd. you are just a rude person who hides behind your own insults. ;) take care mate ;)

[@ronschlorff7089]

@@neverenough5243 two great California State University degrees in the Sciences probably qualifies me as "clever" or a "nerd"; how about you, bro? Got anything? And I also did not delete anything; YT must have for some unknown reason!

[@neverenough5243]

@@ronschlorff7089 ​i didn't question your degree xD i was trying to make a point that nothing gives you the right to look down on people, no matter who or what they are ;) If you are clever as you say you are, you should try to find a way to educate those "dolts" that you were referring to and not to use them in a way that makes you feel like you are brilliant in all ways imaginable. I really don't want to judge you or anything, but what you said in your other comment about "dolts" and "stoners" just wasn't right. I hope you realize that. No degree in the world gives you the right to look down on people like you did. If you point a finger on someone, there are three fingers pointing right back at you. Not that it matters but, since you asked, i have a phd of astrophysics and currently i'm working on getting phd in astrobiology. But just because we have some form of degree, it doesn't make us anything better than anyone else.

[@ronschlorff7089]

@@neverenough5243 ok, fine. Good luck, and much respect for your current and future education. I worked for 33 years as a wildlife ecologist and field biologist studying the demographics and habitat relationships of endangered bird and mammalian species, but as you say, that means nothing in "the great scheme of things". bye!

[@alaeriplays]

That face when Aliens popped up on the screen was more terrifying than the word itself 😂🤣

[@ericaugust1501]

....planets slamming into each other is a pretty good. i'd liked to have been able to see it in realtime.

[@joescott]

Yes. From far away.

[@ximalas]

Have a go at Universe Sandbox2 available through Steam. It let us simulate solar systems and more. Try deleting our Sun or send a black hole toward our solar system. You can also slam planets into each other.

[@ericaugust1501]

yeah, I have universe sandbox 1. It was fun...but not quite as graphically immersive as one might like. Is universe 2 much more detailed? Still would not beat real life observation of such phenomena tho :) i'll put it on my wishlist. Should revisit it again.

[@ximalas]

I've never tried US1. US2 isn't perfect. It really slows down whenever a black hole gets near any other object. I tried to simulate KIC 9832227 but all I got was a supernova explosion. Maybe I didn't get all the parameters right. It's still a good tool to play what-if games.

[@Captain.AmericaV1]

Planet Pool?😎😎

[@matthuckabey007]

Maybe the planet exploded? Or was torn apart somehow. Oh you just caught up with that explenation. Well I'm sold.

[@mgoulding21]

Your videos rock.

[@zachz1018]

That face you make when You finally bring Aliens up... LMAO

[@Milacku123]

Keep the beard, Joe!

[@joescott]

I'll keep it and then one day I won't be able to deal with it anymore and shave the whole thing off. I go through phases like that.

[@Milacku123]

Would it help if I said it hides a weak chin? (Joke!)

[@dallastaylor5479]

I think it looks great, keep it.

[@AdaptaFilms]

Liam McDonald I second that

[@edgregory1]

Split the difference by just shaving every 5 days.

[@samsoteriou6137]

first time i have ever seen your show and the LAST time too. One thing you didn't talk about is the sequence and algorithms of the cycles and the synchronicity with earth cycles. These number also appeared in the chambers of one of the pyramids of Egypt. Such an extraordinary effort by the builders to point out a dust cloud or a broken planet.

[@BladeValant546]

Actually, all the natural explanations have tons of holes as well as the alien structure hypothesis. Currently, we have no idea what the cause is.John Michael Godier has a good video series explaining everything current with this star. The comet hypothesis has it needing exponential number of comets, the dust issue is the age, and the planet collision is probability, alien hypothesis is the infrared issue.

[@8bitpothead]

Jarred Emanuel thank you! We can’t explain what’s happening there. This KZbinr somehow knows more than the scientists who claim to have no explanation at this point... what a joke

[@BladeValant546]

Naw he is merely going off of the data given and stating a ex ad naturalis argument. I think he has good reference points to start researching. Either way this star is really an awesome mystery

[@MossySparks]

Joe's channel passed the probation period... I subscribed lol

[@quiron139]

So what if life didn't form there but migrated?

[@poseidon4675]

Still possible, and interesting, but less probable than the 'dust cloud' explanation. Occam's razor for ya! (Or Occam's flaming laser sword, if you like)

[@joescott]

I was going to include this but one of the things I read said that there are several stars that would be much better candidates for migration nearby. If I remember correctly, this star burns 1000 degrees hotter than our sun and will therefore burn out sooner.

[@danielbenitez4120]

Who's to say these travelling beings need the same conditions as us? ;)

[@ronschlorff7089]

@Bruh HoldThisL Science needs data, and we have only one datum so far! Science never "fails"; historically, it's often "conservative" in its theories, and requires sufficient empirical data to confirm or discard a current one.

[@midnightrambler8866]

I watched an old episode and couldn't figure out why he looked different. Then watching this it hit me! No beard or glasses.

[@chriswetzel3242]

I wish they would do more to find out what's going on with THE GREAT ATTRACTOR there is nothing on it really n what the he'll could be pulling galaxy's toward it from so far away

[@kamalmichael]

It's so interesting .sometimes it dims sometime the star brightens...only problem is when you plot it is shows symmetry. .unless the dust knows what symmetry is???

[@moustafamohsen]

I was actually surprised when I get notification from you and it wasn't covering zuma mission, it's the hottest right now, when are you going to cover that ?!!!

[@calebwaddell6948]

Hey, I mean this doesn't rule out Aliens. It just provides a more likely explanation. I've always wondered abt Tabby's Star and so I'm glad u covered this topic Joe.

[@PSPMHaestros]

Savage Joe back at it again with the scientific facts

[@joescott]

I just share what I find. :)

[@Nokia-hv2jn]

dat profile pic is funny

[@dalemartin815]

Marvin the Martian. " You are making me verry verry angry."

[@salvadormarley]

Thanks for mentioning me Joe.

[@dichebach]

Joe, could you do a video on how "agriculture" in space would work? Either a space station or base on a celestial body? I'm talking: what crops, how might the soil/water/nutrients be martialled and maintained, what degree of efficiency in closed-circuit functionality, etc. I see this as possibly the number one question Elon Musk, NASA, etc. should be looking at. I've asked a few YT space channel folks and no one seems to have any interest in diving in to it. There are existing experiments and studies that relate to it (Biosphere) and of course there are NASA (and probably other) programs that deal with portions of it. But I have yet to find any YT videos (I suspect one could do at least 3 if not half-dozen videos on the topic).

[@twirlipofthemists3201]

Diche Bach - YAY! There are now at least two people who recognize the potential (necessity!) of orbital ag. Lotsa ways - I say one idea is to grow algae or bacteria or yeast or some other biomass in big, orbiting, plastic bags. I think the idea of reproducing terrestrial farmland, with tractors amd goats and so on, is unimaginative and kinda stupid. It only makes sense after we have access to space resources - hopefully an asteroid, hopefully not the damn moon. Needs a lot of water, carbon and nitrogen, and a little bit of other stuff. A nice, smallish, icy asteroid would be plenty. Probably process the stuff in space and deliver yummy organic hot pockets to earth (cheap!) via reentry gliders made from asteroid stuff. Ag is the world's most environmentally destructive industry. It's maybe the most important thing we can do in space. But not so soon - it requires large infrastructure, and profit margins will be low, so space will have to get cheap first. But that will happen, and then 90% of ag will go to space. (And hopefully we will revert the land to nature preserves instead of parking lots.)

[@Secret_Moon]

Agriculture in space is actually not much different from normal agriculture on earth. The only major difference is the absence of gravity. The problems with it are that it's difficult to provide water uniformly in sufficient amount for the plants, and that some plants require gravity for their morphogenesis. The 1st issue has already been addressed with later growth chamber designs that can prevent leakage. The 2nd issue cannot really be fixed without providing artificial gravity. It all depends on the species. Some don't really need gravity but others do. However, it's pretty easy to make artificial gravity by rotation (Babylon 5 anyone?). And if you have artificial gravity, growing plant in space isn't any different from growing plant in close chamber here on Earth.

[@Secret_Moon]

Some more information: The first veggie to be successfully cultivated in space was onion, which the Soviet cosmonauts grew, harvested and ate in 1975. Arabidopsis was the first to be grown successfully from seeds to seeds (viable) 1982. Later wheat was grown to harvest but got no grain (1997). Soybean was grown from seeds to seeds in 2002, with comparable germination to seeds in terrestrial agriculture. In 2010, NASA astronauts officially ate space-grown vegetable (lettuce) for the first time. It really is not a big deal to grow plant in space. The only problem is whether it's worth the effort.

[@abrarbw]

That'd be a great friggin topic. I'm a student of agricultural science but I've been passionate about space since I can remember. Please Joe. DO IT!!!

[@ronschlorff7089]

I've seen lot's on line, Isaac Arthur has some, in association with several colonization episodes, the part about food needs of colonists, what they will eat, etc. Mostly plants of course, no pigs and cows, yet, expected! So we can send all vegans to space and they will be happy, and leave us meat-eaters alone!

[@Joe_Cow]

I get what you said about people who watch your channel already know about it, just as I think many of us are nerds and or dorks, with a thirst for knowledge and wide range of interests. but of course that's a generalization.. I know my mom watches this channel as well and she's never heard of tabby's star when I brought it up to her a while back... So thank you for giving the background information anyways for those who didn't hear about it. She's not very tech savvy and still hasn't caught up to the wealth of knowledge at her disposal but has an innate need to understand and learn about everything just as I do but I had the advantage of growing up with and becoming familiar with the internet at a younger age. She didn't really start using it to look up things until a few years ago since she was still getting over the intimidation factor of "computers" and feeling like " I will I mess it up if I don't know what im doing, get hacked or a virus".. she's gotten better now and can now browse largely without assistance and knows how to maintain her system more or less, youtube being one of her favorite places on the web and the not always correct but still useful wikipedia, and she now knows how to find "sources" online to fact check and compare, without having to go to the library every time. Lol im sure no one really needed to know all that, but there you have it.. I really like your channel, and how you stay more or less objective in your description of events, facts, history, ect... with a bit of light humor. you do make a mistake or two in some videos but thats human and happens when someone is versed in many, many subjects.. I like that you don't always speak in "absolutes" and will give the facts as they are known but also add a bit of your opinion as well and that they are easy to distinguish which is facts and which is opinion. I also like when you mention your sponsors (?) that you do it usually at the end of the segment and not in such a pushy way which increases chance I will actually bother to look at them. I'm not so good with text communication so I hope you get what I'm saying if you happen to read this.

[@garyschraa7947]

What if you were to contact Amy Shira Teitel of Vintage Space and do a collaboration ? Just thinking outloud

[@cassdaschofsky2214]

First of all, how is the Ice Bucket Challenge already 10 years old?! Secondly, never heard of Tabby's Star until now & it's awesome. And third, I just found your channel today and I'm already a big fan! 👍👍👍

[@weightacademy7834]

When the james web telescope finally launches we gonna find out about alpha centauri and tabis star huh this is exciting

[@lutzypoholotcko9721]

You failed to say that in 1977 we did receive a signal from around that star called the wow signal. That's why Seti was faced that way. The WOW signal..

[@rawdog7220]

Sorry bud, the WOW signal came from stars within the constellation of Sagittarius, actually the resolution of the radio 'horn' was way off from being defined to one star cluster, let alone one star. The WOW signal itself is also kind of miss-interoperated by the media. All it really meant was that that more and higher frequency radiation was being received from that area of the sky than anticipated. I think in modern cosmology the general consensus is that it has been relegated to probable noise from distant supernova / neutron star / black hole interference. That said, I still hope SETI find something...living alone in the universe is far more scary than having neighbours! :)

[@DeadlyAlive...]

Aaaaaliens!!!~

[@Gorlokki]

So happy to hear that you can do this fulltime now :)

[@mickelodiansurname9578]

Lol...was watching this with the headphones on and decided to explain the issue to the missus. She suggested that maybe God might not play dice with the universe but he is fond of a yo-yo. I'm not a great fan of her hypothesis.

[@twirlipofthemists3201]

Mickelodian Surname - lol, I think I'd like your wife, though.

[@billanthony7896]

Mickelodian Surname- Well, the thought of God isn't any sillier than the thought we're living in someone's computer simulation.

[@games1004]

Bill Anthony Also isn’t any sillier than saying that all the 1x10^n tons of material in the universe literally appeared “out-of-nothing” because it felt like it, or was destined to form by itself. Nothing in the universe happens “just because” without something causing it, including the 1st instant of the Big Bang. “Let there be light,” *(BANG!)* Am I right? ;-) Edit: syntax error.

[@ronschlorff7089]

Yo-Yo's!!! One of my favorite things is to watch "yo-yo champs", doing a whole bunch of cool tricks,.... and then, eventually, clobbering themselves in the head with the damn things!! God might be behind that too, just for a good laugh! :D

[@RachelLStocks]

I love all your videos, they just keep getting better! Thanks for making these rad videos!♥️

[@gamechallenge7248]

Sooooooo...From what I heard here...It’s not aliens... BUT COMMON! WE ALL KNOW ITS ALIENS!!! 👽👽👽👽

[@johnortiz7496]

Thank you for sharing your knowledge.

[@texasbuzzard4970]

Good video. Except for the bit about the “speed of evolution”.... there’s no speed. Alien life could easily be waaayyy younger and way more advanced than us. If dinosaurs didn’t own the earth forever we might be way ahead. Or way behind bc there wouldn’t be oil. Humans haven’t evolved in 300,000 years... but we’ve made 99% of our “advanced species” progress in the last 100 years. Most of that probably wouldn’t have happened without ww2 and the Cold War. Think about that

[@parallelflow]

And Nazis. Without freaking Nazis we likely would not have gone to the Moon during the Cold War, and without Nazis scaring physicists into escaping to the US to work on a certain "super - secret" big bomb project, we wouldn't have had the Cold War. So yeah, large scale ethical catastrophes (Hitler, Stalin, Mao Zedong), but also huge strides. To your second point, I think we have evolved at least a little bit. For example, in the melting pot era in the US, we got a ton of gene mixing from different nationalities compared to previous times. Not to mention changes in diet and technology putting less survival pressure on people in western culture. Like, a lot less. We'll have to see what happens in the next thousand years genetically. It would be actually kind of funny if in a couple thousand years due to globalization there are only minor skin color variations! On a more serious note, given that the current trend looking at recent history and the current period is towards the political left, it ought to be interesting if a devaluation of the traditionally male competence hierarchies results in reduced sexual selection pressure for competitive males, because that'll have a long term affect in my opinion in terms of slowing down cortical expansion. Or, maybe equality and planned economies will open up new hierarchies, like in gaming skills... In which case I will be one sad fellow.

[@parallelflow]

@FBI I'm not certain that the Nazis *made* von Braun and his team at Peenemunde develop missiles; rather, I think von Braun got the German military interested in devoting resources to developing missiles. For von Braun, that was the only path to building bigger, expensive rockets, but they didn't force them to do that work. In fact the German military initially wasn't that interested in developing liquid fueled rockets, because it appeared at the time that solid rocket motors were simpler, better and cheaper. In terms of your first point, I think a lot of progress early on in the Soviet space program was achieved by reverse engineering the V-2, and improving it before moving on to bigger rockets. So again, if the Nazis hadn't devoted the resources to developing not just rockets, but specifically liquid - fueled rockets, then we might not have had the space race at the time that we did. The only other way was for the Soviets to get their hands on Robert Goddard's rocket tech, which would have been near impossible. I say that because Goddard's rockets were in several ways similar to what von Braun and his team developed in Germany, because some parts of the rocket and techniques were inspired by Goddard's work. So even though a lot was known about Goddard's work, to kick-start the Soviet space program required straight up stealing V-2s and their components, as well as employing German scientists. So I would say that German research into rockets and rocket propellants was pretty critical for both sides of the space race, though the US technically had the advantage by bringing across the higher-ups like von Braun, as well as stealing the majority of the completed V-2s (the British got their hands on quite a few too I believe).

[@SDRIFTERAbdlmounaim]

that intro is probably the coolest *roast* in history ?

[@locutusdborg126]

We do not occupy Tabby's Star. Currently, we are on Earth in human form as well as a number of other primitive planets. But we are keeping the Tabby alien hypothesis alive as it masks our actual mission.

[@kristiantello]

What

[@jerbiebarb]

They say maybe thousands of years ago a planet got too close. Its moon was stripped away and started outgassing. The planet fell into the star and the star is still cooling from that event. The dips for us depend upon the moon’s rotation facing the star for outgassing from its surface sources and where it is in its orbit for us to see the effect.

[@Sabry4TunnelVision]

To be honest, a Dyson sphere would not make any sense because I believe you d expect the dimming to be permanent. But what signal could have the largest reach and would be more easily noticed? Dimming a star for 15% in a non repetitive way maybe...? Maybe we should look into such systems we could use to send out signals into the universe, just to have an idea if it would be possible? I know prime numbers are better but how would you even make that work in real space (not in sci-fi) with orbiting around a star and trying to send that signal 360° around. Just a random rythme would already be impressive enough I think

[@Ballacha]

Sabry I don’t think you can include much information if you communicate by partially blocking a spherical object. There are only so many ways you can block it. A better idea would be control the density or other property of the cloud blocking the star thus change the wavelength of the light and other radiations it emit. The information variation would be much higher this way so you can include many more data.

[@Sabry4TunnelVision]

Terry Folds that's a good point. But what kind of an evolution should a civilization reach before being capable of doing that? Type II or III? I don't think such a civilization would see the need anymore to communicate in that way. I'm thinking more in what we might consider possible with high resource but tech we can actually consider possible within our scope... or even see ourselves do

[@Ballacha]

Sabry there are many reasons for communication. And I suspect a type 1 civilisation approaching type 2 could be capable of such feat. The fact that the star is still there tells me they are likely not yet able to harness its power directly. The communication might be a greetings, or an SOS, or a trap set for curious investigators. But I’m just applying human logic to a random alien species. I can be hilariously wrong.

[@Sabry4TunnelVision]

That's true. But it's just fun to play with the information and see what you can do with it :-) I too try to imagine things from our way of seeing things. How would we try to make a lighthouse from our star and make it visible in more than just in a flat orbital plane? It would only end up becoming a rhythmic pattern if we would swing something big around the sun. But, what if we would go in a 3 dimensional path (think of how you would be wrapping a ball of twine) Could there be a possible path where any 1 point would never see the transient with a fix pattern? (Some times it would maybe even completely skip it for long time) Has such an orbital path already been observed to appear in nature?

[@pelgervampireduck]

maybe it's not a solid sphere, maybe it's like a swarm of smaller objects, habitats or solar panels or a "dyson swarm". search isaac arthur's channel for interesting videos about mega structures.

[@bluepixelworks9302]

There is so much still to learn

[@kaneb221]

It's funny how us humans think we know so much about the universe when we don't even fully understand our own planet...

[@_Muzolf]

Really now? Care to share what you think we don`t understand about our planet?

[@kaneb221]

Apparently people can't FULLY comprehend the English language either...

[@kaneb221]

Ignorant assholes...

[@kaneb221]

So do we literally know everything about our planet?

[@kaneb221]

Come on Andrew, with your billions of hours of studying. Tell me EVERYTHING there is to know about the mysterious globe in which we reside.... tell me all about the history of advanced civilizations that are unknown and all but lost. Tell us where we came from and how we lost that information. While you're at it why don't you just tell us about religion since why know so much.

[@lordawesometony2764]

Dude perfect amount of comedy in this video

[@Cielzerozx004]

That face you make when talking about aliens always makes my day hahahaha!!!

[@ccharms60]

You make science fun I would love u as my teacher I've been watching and learning from ur channel for 2 days straight

[@PigeonHoledByYT]

Obi Wan: I felt a great disturbance in the Force, as if millions of voices suddenly cried out in terror and were suddenly silenced. Luke: I just see a red light

[@ranjanghosh4321]

Please make one video on the model of the universe.. Is it flat.. My question is.. Whenever any rocket leaves the earth.. Does it go left or right?? Do we also look below or up.. I don't know how to explain this.. I hope you get it.. Also black holes... I love this channel...

[@earth14rocco36]

Dude, the whole "which means "aliens" bit made me realize why I love u... sum1 I DNT knw... but I genuinely have uh strong admiration 4 u... keep it up brother😉🤘

[@crazy137788]

I really do love watching your channel grow

[@jimmyjimjimdoctor]

Aliens, flowed by the THX sound hum. Perfection at its best

[@arpatt77]

I just wanna point out that if there was an advanced civilization who had reached interstellar travel capabilities, younger stars with habitable planets would be more ideal for colonization than older stars, prime real estate. So the fact that the star is young doesnt negate the possibility of a megastructure, its just that the beings who built the structure may not have originated from this star system.

[@camo_fisherman]

Dude that smile cracks me up!!!

[@TK199999]

Even if it turns out to be dust from a massive planetary collision, we literally went from questioning if other stars had planets. To possibly witnessing the aftermath of massive planetary collision light years away in another solar system.

[@susandavis5660]

I heard that a dust (cloud?) from any source was unlikely because of its infra-red signature, meaning that given the apparent proximity to the star "dust would be absorbing a certain amount of heat and of course radiating it back out which we could then detect , but our findings are not consistent with that idea . which leads us to the question of , Now what?

[@christopherbaby3842]

@6:42 - "now you could say this is aliens and blah blah blah but... this is more possible."

[@stevenmcdaniel9170]

I'm glad you did explain. I just found your channel

[@stevenmcdaniel9170]

oh you mean the super structure thingy

[@brianphillips4008]

I love the completely unrelated opening statements he says in every video

[@erikjohnson9075]

The problem with the destroyed planet scenario is the same as why a dust cloud was ruled out in the first place: There is no infrared excess. If you have a large dust cloud you would get a pile up of excess emission in the 1.5-2.5 micron range from all that dust absorbing and redistributing the radiation from the star. Now since there is wavelength dependent dimming that occurs only in the UV/blue that indicates that the particles causing this dimming are small but not as small as dust. For a complete planet destroying event the input energy would be sufficient to primarily create a dust field so this is possible but i find it unlikely it also wouldnt explain the short period dips. So the mystery is still unsolved but the possibility of aliens is still on the table as a destroyed swarm of satellites (dyson swarm) could explain this signature. A lot more observations are required and we should also observe stars in the area of tabby's star to rule out any interstellar material as the cause (very unlikely but should be ruled out nonetheless)

[@BlogForTheBloodGod]

Do an episode on Roko's Basilisk! Love your content BTW

[@Skinnymarks]

Lol i have that same pair of glasses. For a second there i thought i was looking into a mirror.

[@ronschlorff7089]

Yeah, me too, but mine have some white adhesive tape in the middle to hold them together. Pretty cool look for a nerd don't you think? Try it Joe; you'll crack everyone up, more than usual!! :D

[@patgray5402]

In my opinion, the lack of the evidence for alien life is far more alarming and intriguing than if there is.

[@GeauxWyatt]

3:09 was very unexpected but now I can’t stop laughing 😂

[@RS-ls7mm]

Big problem is there is no periodicity. It would have to be very far from the star not to show any recurrence in the years it has been observed. A recent paper had some evidence of a 1574 day period but not for all the drops or any of the big drops. Something between us and the star is still on the table.

[@cubax599]

The way the Kepler scope works... that only works on systems whose ecliptic plane is in line with our line of sight, right? I wonder what`s the likelihood of that , overall.

[@CzarnyMlot]

I get the feeling looking for radio signals is like a civ ~1000 years ago trying to discover ours by looking for smoke signals or trying to intercept pigeon messengers

[@stokes58]

The electric star model fits the observations.

[@sup3a]

Rofl at that beginning roast :D

[@hazardousmaterial5492]

Could you make a video about exciton particles?

[@justinconnor3155]

Yoooo Tabby is my professor rn, she’s great

[@will2see]

Yes, I paid attention and I remember that the dust hypothesis was ruled out, because there was no infrared anomaly observed in the spectrum of the star, which would be present, if there is some cloud of dust. So I don't get it... The dust would absorb the light from the star and emit in infrared...

[@outistynnanyt5153]

6:04 its also why the sun the rusty, red, or bloody during forest fires. The smoke particles scatter more of the blue light