Did Life on Earth Come From Outer Space?

[@HistoryoftheEarth]

Hey guys thanks for watching! Follow us on Instagram to see the amazing artwork featured on the show - @historyoftheearth_ig

[@Muhammad-sx7wr]

🐣🐔🐔🐣🐣🐔🐔 circular logic no.

[@p00yan]

Great interesting content. Done professionally. Keep on.

[@Peter7966]

Thought provoking. If life was seeded intentionally from somewhere else, was the evolution of life to higher intelligence an encoded given? Is that the natural progression, like acorn to oak? I wonder.

[@MrAaaaazzzzz00009999]

when is next video? its been 3 weeks since last?

[@russellmillar7132]

@@Peter7966 Don't forget the mass extinctions--without Yucatan asteroid( meteor?) strike c. 65 million YBP, "people" i.e. intelligent beings, may have been Dino cousins.

[@Viperzka]

The main problem with panspermia is that life had to first arise somewhere. Panspermia doesn't solve any problems about how life arose, it just kicks the can further down the road.

[@ghuttsmckenzie4269]

Agreed but it still could be a likely scenario but I still wonder how life came to be, how did inorganic materials somehow form a living being and what was the primitive organism like?

[@GM-yb5yg]

Yes, it's just another God problem; if God made the universe then who made God? Saying "God made himself or God was always there solves jack shit. Same goes for "Life originated from space". How could it originate in minus 300 degrees? Bullshit. It originate s here, and probably other places that are similar. Anything else is just bulllshit.

[@ReasonableForseeability]

Planet A is more conducive to life and easier to explain. Then panspermia brought life to B (Earth). The theory gives a much longer time span for life to have occurred. Possibly it was just what *actually* happened and, yes, we still need to explain how it arose elsewhere.

[@ReasonableForseeability]

@@GM-yb5yg Your logic is faulty and you are using strawman fallacy. Speaking of jack shit... Jack is the only son of Awe Schitt and O. Schitt. Awe Schitt, the fertilizer magnate, married O. Schitt, the owner of Knee-deep Schitt, Inc. Jack Schitt married Noe Schitt and they had 6 children: Holie Schitt, The twins; Deep Schitt and Dip Schitt, Fulla Schitt, Giva Schitt and Bull Schitt. Jack and Noe divorced. Noe later married Mr. Sherlock and because her kids were living with them, she wanted to keep her previous name. She was known as Noe Schitt-Sherlock. Dip Schitt married Loda Schitt and they had Chicken Schitt. Fulla Schitt and Giva Schitt married the Happens brothers in a dual ceremony. The Schitt-Happens children are Dawg, Byrd and Horse. Bull Schitt left home to tour the world. He recently returned with his new bride, Pisa Schitt. Now, when someone say's you don't know Jack Schitt, you can correct them.

[@Viperzka]

@@ReasonableForseeability panspermia isn't about resolving how hospitable planets are, it's an attempt to get around abiogenesis. It fails to do that because it still requires somewhere that life first arose from non-organic matter.

[@Vasharan]

There are at least 2 very good reasons that life on Earth is not a result of directed panspermia: 1. Deep sea vents. Some of the earliest life on Earth arose from deep sea vents. These would be very difficult to seed from a spaceship, as opposed to land or the shallows. 2. Mitochondria. Mitochondria arose later than early life, meaning the first life forms probably did not have access to the ATP cycle, and used the lactic acid cycle or an analogue. If aliens introduced life on Earth, it is unlikely they would have neglected to add ATP synthesis into the DNA of their seed batch, because it is 15x more efficient than the lactic acid cycle. It would have made their seed batches horribly inefficient if the goal was to spread life through the galaxy if they had "forgotten" to include such a critical pathway to mulitcellular life.

[@Kedvespatikus]

Since we have mathematical evidence, that life is a direct consequence of the second law of thernodynamics (Jeremy England, 2013), backed by his computer simulations (2014), probably even soft panspermia had no, or limited role in spreading life. We could tell this only, if we find life outside Earth. I tell this, because England's work is still a hypothesis, although a promising one. Regarding your reasoning I would add one more: 3. Photosynthesis. It emerged on Earth a half billion years later, than life itself. When it did, it caused the GOE, in which even the 'light-eaters' almost went extinct, because they had no molecular mechanism to survive their own byproduct (oxygen). Moreover, early photosynthesis had a different molecular mechanism (C3) from that being the dominant today (C4). Light is the most abundant and almost inexhaustible energy source in every star system, at least as important, as the ATP synthesis (which, by the way, requires carbohydrates, most efficiently generated by photosynthesis). So, why did the 'god-aliens' miss this opportunity?

[@agxryt]

"directed panspermia" It's not as complex as you think. I sent a comet, seeded with instructions. It's been fun watching you grow

[@billmiller4972]

Carl Sagan: "The lives and deaths of the stars seem impossibly remote from the human experience. And yet we're related in the most intimate way to their life cycles."

[@1jediwitch]

@Gernot Schrader The Human Species is not unique. We are made up of the differing species of Hominids, & our DNA is mostly made of viruses. To think that we alone are special in all of the multiverse is childish at best. 👽🖖

[@virgilmccabe2828]

@Gernot Schrader Thanks, I needed a good laugh. A bit more listening and thinking with a lot less blathering and you may even learn a little bit

[@JohnDoe-re4qy]

@Gernot Schrader Sure, panspermia is just a theory and life certainly could have just spontaneously formed here. And, yes, there are countless possibilities that had to go right in order to make life on earth what it is today. More than most people realize. But, to think we're unique and the only life in the universe is pretty naive. Each Galaxy has roughly 1-4 BILLION stars, each with at least one planet. And the observable universe has 200 billion to 2 TRILLION galaxies. I just can't believe that conditions haven't worked out somewhere besides earth. Back to panspermia, we have already identified life that can survive the vacuum of space for a few years. So, it's really not that far of a stretch to think there might be something that can survive longer given the right conditions. Now that said, life might be spread out so far, we may never identify it. Interstellar travel is far away from development let alone intergalactic travel.

[@saucywench9122]

Glory to the pale blue dot.

[@harrietharlow9929]

Very true. I love the fact that we are literally stardust. When I was very little, my mum used to tell me I was a star before coming to them. In a way, she was right since the sun, the solar system, and every living thing has ultimately resulted from a supernova. As someone put it, we should remember that supernova because our ultimate mother died to give us life.

[@WayneDeJagerSF]

Obviously a ton of work and research into this. Nice work...really solid stuff, and I appreciate it. Thank you.

[@stevencooper4422]

Has he done an episode on catastrophism yet?

[@davidhollenshead4892]

Most of the theory was done decades ago, but the graphics & editing were a substantial effort...

[@Geckobane]

What this guy said x5

[@Honorablebenaiaha]

I think we need to rewrite history and make all discoveries be made by POC.

[@Geckobane]

@@Honorablebenaiaha kzbin.info/www/bejne/pnbSdmWLhr2Xq6M

[@erictaylor5462]

The problem with panspermia is, it still doesn't answer the question, "How did life begin?" it just moves where it happened. Life began on Earth almost as soon as it could begin. So I think that abiogenesis will happen anywhere that conditions make it possible. This would make it much more likely that life began on Earth because the number of "lucky things" that have to happen is so much lower. With terrestrial abiogenesis all you need to do is have conditions that make it possible exist, and conditions that make life possible need to continue. For panspermia you still need the same things to happen in some other location, but you also needs some event so violent it launches a life form into interplanetary space, but not so violent it kills the life form (this is quite a tall order). Then that life form needs to survive in space for quite some time, then it needs to survive entry into Earth's atmosphere and landing on Earth and finally, it needs to land in a place where it and it's descendance can survive and evolve. Occam's Razor states that the simpler answer is usually the correct answer. Panspermia is the opposite of Occam's Razor.

[@Vespyr_]

When you consider the vastness of this galaxy, and the universe and its billions of stars, this razor loses some of its glint. It withers when you consider the probability of what you have described, is happening as we speak, frozen in the light around us. We are witnessing galaxies as they were trillions of years ago.Literally seeing the chaos you describing having unfolded there, as if it was happening today. It isn't just something unlikely, or even something to consider in the sense as a possibility. It neither needs to answer the question, how did life begin. That's another question entirely. Once again, considering the universe as a whole, the concept that life began here, without influence from elsewhere flies in the face of all knowledge we even have in our own world. Everything, has so far, come from something before it. It's hardly occams razor to believe, life came from somewhere else. The grass at your feet, the clothes you wear, your parents, the rocks, the oceans.... came from space.

[@erictaylor5462]

@@Vespyr_ This has nothing to do with life on other worlds. My comment only applies to how life began *ON EARTH* "We are witnessing galaxies as they were trillions of years ago." Well, the universe began only about 13.4 billion years ago, and the universe was wasn't transparent for a long time after that, so the farthest back you can see is "only" about 12 billion years ago, not "trillions" of years. Also can't see enough detail from that far away to see how life formed, and it has little to do with Earth anyway. It's pretty clear you have no idea what you are talking about. Go read some stuff by Carl Sagan.

[@ophel1a]

Very well-stated reply; you took everything I was thinking in my brain and gave it words. That alone blows my mind. Someone else also commented on the slow formation of elements like iron or gold, which is more evidence that we did just happily, luckily bumble our way through being single-celled organisms nomming on some deep sea lava vents. Fast forward it a couple billion years, and now we have all manner of life (and a good idea of where it came from, too, given fossils found), from elephants to whales to hairless bipedal uberapes. "Panspermia is the opposite of Occam's Razor." Exactly this. But it's also the exact definition of clickbait. ;P Man's gotta make his money somehow, eh?

[@erictaylor5462]

@Just Looking I never stated Occam's razor is a law. I just pointed out that this question is perfectly suited for using it. We have very limited data and two conflicting ideas. Asking, "which solution is simplest?" Occam's Razor is a guide for which solution to a given problem is more likely to provide an answer.

[@erictaylor5462]

@Deducing Reality Actually, conditions on other planets have changed dramatically as the solar system aged. In fact, while conditions on Earth supports life as we know it, it does not currently support abiogenesis. In fact, conditions that support abiogenesis do not support complex life. If you went back in time to witness abiogenesis you would die almost instantly. Crap, I just made up *ANOTHER* theory. Life did not start on Earth, it was taken to the new Earth by a stupid time traveler!

[@Xtariz]

I can't belive how your documentaries have so little views... there's allot of work put into these...

[@barryneilson2135]

A lot of work went into Harry Potter also. It doesn't make a total fabrication any more true.

[@eardwulf785]

Shallow minds apparently outnumber deep thinkers today

[@virgilmccabe2828]

@@barryneilson2135 in an infinite universe anything that can happen will happen an infinite number of times. Therefore there could be a real Harold Potty somewhere

[@barryneilson2135]

@@virgilmccabe2828 Except that in an infinite multiverse, variations of this one can occur an infinite number of times, and then there are variation on alternative universes occurring infinitely long before unrealistic universes arise, or before ours is exactly duplicated. Infinity is a lot bigger than the limitations of imagination.... however, that said, the Harry Potter universe is equally as valid in the minds of those who believe it to be so - and that is how you can experience it. Furthermore - and nobody else seems to have questioned this about infinity - we have to determine where the material came from to make this universe - let alone where all the material comes from to make an infinity of universes.

[@harrietharlow9929]

@@eardwulf785 I've noticed.

[@Mathis218337]

8:49 - always wondered why this is thought of without the consideration that lots of stars had to die to make complex elements that are required for complex tech. Like gold, iron, etc It seems more likely we are one of the first given the timeline we know (n=1)

[@massivedamagegaming9004]

That is both a really cool and depressing theory.

[@TheStarBlack]

Stars can die within a few million years of appearing. There's been 13 billion years for more advanced species to exist.

[@icecold9511]

@@massivedamagegaming9004 At least if we're first, someone else won't come along and weed us out.

[@Argentvs]

@@TheStarBlack The thing is that those stars we not the right type and the conditions then were more chaotic. If we put thinking on this we are an extremely lucky biosphere with the right sun at the right time, in the right place, with the right stars before, in a right distance to the sun, with the right orbital mechanics for a stable system (most known aren't, gas giants eat or throw away rocky planets or put them too close), with giants of gas protecting from orbital debris, with the right size, the right gases, the right metal core size, the right protoplanet impact to create a moon of the right size and distance that stabilizes it, with plate tectonics. etc.

[@KaiserMattTygore927]

Kind of what I've been thinking Maybe we are the progenitor race?

[@HeathenHammer80]

If you think about it for a second, it’s clear that everything came from space. The water, the chemicals, everything. We’re just quibbling over timing it seems.

[@joz6683]

I cannot recommend this channel highly enough. The narration, subjects and pacing are almost perfect.

[@adamstradamousdoe8540]

7:05 'SOFT PANSPERMIA' "accidental transmission of life" - sounds wrong... Kind of like didn't wear protection and forgot to pull-out type of scenario.... 😐

[@Pooyuck]

We have already given Mars and accidental jab of life (contamination).

[@wynweeardo0593]

i really love this channel.. nice presentation and narration -- it is very easy to understand.. probably my new fav channel!!

[@HistoryoftheEarth]

Thanks! Glad you like it

[@adizmal]

I think of Carl Sagan's quote about anthropocentric conceit and provinciality when I hear people take a skeptical standpoint on even the physical possibility of panspermia........... ""We seem to crave privilege. Merited not by our works, but by our birth. By the mere fact that, say, we're humans, and born on earth. We might call it the anthropocentric, the human centered, conceit. This Conceit is brought close to culmination in the notion that we are created in god's image. 'The creator and ruler of the entire universe, looks just like me. My, what a coincidence. How convenient and satisfying.' The sixth century B.C. greek philosopher, Xenophanes, understood the arrogance of this perspective, here is what he said. "The Ethiopians make their gods black and snubbed nosed, the Thracians say theirs have blue eyes and red hair. Yes, and if oxen and horses, or lions had hands and could paint with their hands, and produce works of art as men do. Horses would paint the forms of the gods like horses and oxen like oxen'."

[@richardsleep2045]

No idea what that means but it sounds powerful, nice one. There is an arrogance that hasn't gone away...

[@Paul-ng3xn]

That arrogance is even reflected in the name we gave our species: Homo Sapiens. Wise man. Or subspecies, Homo Sapiens Sapiens. Yes, given by Linnaeus in 1758, but no one bothered to change it.

[@michaelvenezia9673]

And the audience was like "true spit doc"

[@colinp2238]

@@Paul-ng3xn I thought it was Homer Sapiens?

[@SiqueScarface]

@Scientific Humanist As "sapiens" is word from Latin, any connotations should be set aside, as they are connected to the translated english word and not to the Latin one. "sapere" just means "to know", and "sapiens" could also translated as "knowledgeable" or as "conscious". And even "wise" got its contemporary connotations only recently. The word, derived from proto-germanic "wisaz" also just means "to know" (compare to German "wissen").

[@mikeyoung7660]

I like the idea of the simple life form arriving in rocks from space. Then the mixing of chemicals over milllions of years in the oceans until the right combination of chemicals formed and an organism replecated.

[@Dontlicktheballoons]

Reminds me of an ancient Sanskrit proverb. "Be humble for you are of the Earth, but so to be Noble for you are of the Stars". Also, it's five days into 2021. I hope somebody looks back at this comment in a few years and is like, "don't worry kid it gets better."

[@gregoryray7665]

Well, the Jan 6 insurrection happened a day after your comment. Not a good sign.. the future looks uncertain.

[@saucywench9122]

Why wait? I can tell you it now.

[@Paulo-qo3qe]

Don't worry, it gets better

[@weirdwalrus5757]

@@Paulo-qo3qe not really

[@thepartysjustbegun5557]

Wish I help you out with that hope 😒

[@Johnboy33545]

Very well done. Thank you. If everything in the Universe is made of and from the same basic ingredients does there really need to be a 'somewhere'? Life seems to me to be inevitable given the right circumstances and those can probably vary. Given the size of just our galaxy life could be continuously evolving elsewhere in it and we'd never know. Amino acids in comet tails gives rise to deep thought.

[@majestichotwings6974]

Indeed as soon as I heard that I thought, “ok sounds like indirect panspermia is the easiest theory.” My working idea right now is that our proto earth already had the base ingredients on the surface and with all the additional debris that was still around at the time, the chances of a few comets carrying the last few missing ingredients (for this example, let’s continue with amino acids) dropping off the last needed ingredients into a pool of stagnant water with all the other essential ingredients which began to interact with each other as chemicals do and by happenstance formed life. It’s easy, doesn’t involve life having to evolve elsewhere and travel on millions/billion year time scales, and puts most of the work on our (as yet) rather unique planet to already house most of the necessary pieces thus making the missing ingredients few in number and easy to obtain in the solar system (possibly aided by passing nearby nebulas and interstellar gas clouds). And four billion years is a long time to be zipping through space, who knows what kind of interstellar marvels our early earth witnessed, indeed, until a better theory can arise I am of the belief of indirect panspermia seeding life on our planet.

[@tarheel7406]

Seems to me that advanced intelligent life must be a relatively recent event, as the universe would have had to age enough for the right conditions to be set and to have gone through several stellar generations to create the required heavy elements. Some building blocks of life may have come from extraterrestrial sources, but most likely just minimally adding to what was already present. The simplest solution is usually the correct one.

[@markmitchell450]

Yet life on earth from a soup like lifeforms to now is still only a blink in time compared to the universe how do we know if similar species have existed and perhaps long gone from other planets

[@tarheel7406]

@@markmitchell450 The age of the universe is ~14 billion years, the Earth ~4.5 billion. So that's ~one-third in. Ignoring how long it took for things like rate of entropy and the fundamental forces to get consistent to allow life to survive. we can just look at the heavy elements necessary for intelligent life. When were they common enough for intel life? That would mark the earliest point that such life could exist, after which all the other variables would still have to align. In short, terrestial intelligent life came into being in a relative blink, but not all of its requirements.

[@edcliffe2988]

"Another planet could hold the key that makes the spontaneous creation of life much more likely." PENGUINS! A highly advanced society of penguins, working diligently in their laboratories...

[@smellsgood5662]

Low ads for such great content!!! Hats off to you my good Sir!!

[@stitchgroover]

Really enjoying this channel and all the hard work and love that is obviously put into each video. Count me in to keep watching for years to come.

[@colinp2238]

When i hear the term panspermia I have a picture, in my mind's eye, of James T Kirk trying to spread his seed with every alien female he comes across.

[@Tobikoyum7]

I picture a Mr. Tumnus looking dude getting pornographic at the disco 🤣

[@mixererunio1757]

I think I'm going to Captain-Kirk that alien over there.

[@Thumbsupurbum]

Same, except I picture Zapp Brannigan from Futurama.

[@russellmillar7132]

Dude, you did not just write " comes across"!

[@Azmodaeus49]

Bruh that reminds me of star lord father aka Ego goes around spreading his rocky sperm across the cosmos.

[@davidcurrie4122]

I have only just come across your program and now I just can’t stop watching, it’s brilliant as others have said the amount of work and research gone into this production is absolutely amazing. Thank you for a great program.

[@shadowraith1]

Origin stories are always more complex than expected. :)

[@tehbonehead]

It's turns out that Earth's mother was named Martha, too...

[@monnoo8221]

that's because the idea of origin is deeply flawed

[@ashwynlentini1317]

I really can’t wait till we do those Europa and titan missions. Especially Europa. Imagine how big the life under that ice could be

[@SirThanksalot_1]

"Panspermia" meaning "All seeds" in ancient Greek doesn't make full sense to me, I think in this context it means "seeds everywhere". Because all seeds still doesn't say much.

[@TheStarBlack]

It could mean 'all life is seeded'

[@ophel1a]

All of the seeds. Of everything. Involving all members of seed, from spermatozoa to corn kernels. If you Goog the root "pan" it is listed. :)

[@ComradeArthur]

It's seeds all the way down.

[@SirFaceFone]

Wait it's all seed?

[@ComradeArthur]

@@SirFaceFone Always has been.

[@peterfitzgerald7327]

thank you for the great documentaries, your narration is on a par with sir David Attenborough. And the quality of the c.g is amazing,

[@harishvyas107]

Took preety long to load a video I was eagerly waiting for it . Other great video this time explaining Panspermia. Heard about it today I got to know lot about it. Keep up the good work. Love your work and explanation. Looking forward for next video. Please upload soon. Take care Bye

[@klausreinsch5774]

4:43 He is also the guy who discovered first Uranus and gave it his name.

[@dennisnicholson952]

The theory of panspermia is interesting and not impossible but where did the life, which was transported by whatever means, come from? There needs to be an ultimate origin of life whether it was on a planet or in some other way. I had been wondering when you were going to do a new video. Thank you. This one was, as expected, worth the wait.

[@richardsleep2045]

Yea it's a problem once removed. Chandra et al think it's part of a universal package - viruses just rain down on us. Anyways interesting.

[@johnree6106]

The old universe. There is a theory that an old universe gives birth to a new universe.

[@JohnTaylor-vj4hr]

Panspermia has nothing to do with HOW life originated. It is instead a Theory about WHERE life originated. Telling us that life may have originated somewhere other than earth is clearly one of the possibilities, but it is not an explanation of how life originated.

[@suecondon1685]

Your channel is now my favourite, meticulously researched and delivered in a fascinating, clear way, slowly so there's time to digest what's being said. I feel we are children of the earth. I have no scientific basis for that, I just feel it within me.

[@filmmusicfan558]

I wouldn't have thought this to actually be possible, but David Kelly might indeed be a more than adequate substitute for Sir David Attenborough to narrate documentaries! Did you already hand in your application at the BBC? ;)

[@marcoantoniogalindolucches8085]

We're probably some alien kid's science fair project that probably got a C+ at best

[@cerulean22b69]

What would it take to get that kid a B? We could get at A for effort at least lol.

[@EugeneHaroldKrab]

@@cerulean22b69 once we hit type 1 civilization he will get a B

[@crisantocabrerajr.3508]

God is the creator of earth and many universe

[@ourempire13]

Probably

[@john-ic5pz]

@crisantocabrerajr absolutely true. God is the kid simulating this all.

[@theotherandrew5540]

We don’t know the origins, but this video raises some more int questions. If life here came from somewhere else, was it accidental or deliberate? If accidental, is the Earth creating life possibilities on other planets? If intentional, would the creator chose a clone or something else? And why? … it’s one hell of a rabbit hole!

[@notwhatiwasraised2b]

If 'life' could evolve elsewhere, why not here on Earth - chemistry + billions of years

[@dorkthrone]

Yeah, it seems kind of like pointless conjecture to me. Like, sure, panspermia is a distinct possibility, but it did start SOMEwhere, so why not at least start with the planet we know something about? Granted, the video says as much.

[@paulcunnane4]

Time.

[@Lucy-sd6yv]

Please never stop making these!

[@Sanngot]

Guys... turns out aliens did visit Earth after all! But it was our distant, DISTANT ancestors! We were the aliens all along! 😱 Lol, jokes aside, panspermia is something I'm not sure if we'll be able to prove or disprove in either direction. But it is fun to think about, and I thoroughly enjoyed how it was presented here. I'm hooked on the content of this channel!

[@HardRockMiner]

I have been watching your uploads almost all day. I am a new subscriber. You are awesome

[@RyanMiller-ej8ri]

Is this series going to stop when humans enter the scene, or is is going to continue into human history?

[@ComradeArthur]

I hope it continues a billion years PAST present day. (estimated time when the expanding sun swallows the Earth)

[@antoniomonteiro3698]

Thank you History of the Earth. I find this series to be at the level of Carl Sagan's "Cosmos" and consequently much better that NDT's "cosmos". (now I'll copy this comment to all episodes...)

[@klarahvar746]

In the immensity of the universe, it would be almost absurd to think that the only place where the conditions for life existed is our planet. That said, I find it very hard to believe that the basis of life that evolved here has "survived" the more than extreme conditions involved in wandering through space and then impacting on Earth.

[@Rkenton48]

True, but the real question is not that we are the only planet with intelligent life on it, but the only one with intelligent life on it at this time. That would make finding others difficult as none are existent now, or are just coming into existence. Ships that pass in the night of space.

[@klarahvar746]

Impossible to know. At the moment, the spaceship thing is a metaphor for me.

[@lqr824]

I'm wondering if we now know enough about cellular biology, genetic engineering, and the attributes of Venus and Mars to create lifeforms that can live on them? What may strike us as inhospitable is like a spa weekend to the right exophile. Or do we even need to engineer such? Some of the coldest and driest parts of the world are in Antarctica, and yet I'd suppose we'd find thousands of bacteria per milliliter of crushed rock there. Perhaps they'd only need minor modification to deal with lower atmospheric availability of nutrients?

[@monkeyslovewand]

I have a friend who believes we (humans) were seeded by Aliens. I tried explaining well if that's how life was created who created the Aliens who seeded us and then who seeded the Aliens who seeded them, etc ,etc all the way back to the big bang? Meaning the the big bang would of had to have created intelligent life capable of interstellar space travel and bio engineering immediately for that to be true... he still thinks Aliens made us! Bless him.

[@michaelhanford8139]

Not a huge fan of McKenna but his conversations with 'magic mushrooms' regarding panspermea is worth a listen.

[@yuhisarhim]

I swear I'm not getting notifications to watch these.. Loving the series, however!

[@davidkillawee6]

The statement that some of the ingredients for life came from space is kind of a cop out to shoehorn in soft panspermia. All of the ingredients came from space, that organic molecules could have rained down in comets and meteors is pretty much a given considering that we find these molecules in molecular clouds in star forming regions, but it's still just chemistry not life at this point. The earth has processes that could have generated these molecules independently.

[@_Ocariao]

I miss your videos! Glad to see a new one. I really love your job!

[@jpdm8663]

I’ve watched these documentaries many many times, they are so well put together, BRAVO!!

[@jrh5067]

Loved it. Some quality at last - (and it only took 4.5 billion years. Lol) Keep it up, GREAT

[@johnbava3]

I've always thought that tardigrades indicate to us that life having come to Earth from space is definitely feasible because those things can survive so many different extreme environments.

[@markmitchell450]

But not indefinitely in space months or possibly years but those had to evolve from a lesser species

[@solgerWhyIsThereAnAtItLooksBad]

Thing is: those are complex lifeforms, which the first forms on earth most certainly weren’t

[@yudjerthen]

Magnificent channel thank u for this marvelous work and best of luck for the future

[@anjou6497]

The samples collected from the comet's tail ( e.g.amino acids) , is extremely exciting..🌌

[@babyyoda0U812]

Just incredible...your effort shows clearly well done sir !!! Thank you for making learning fun instead of a grind

[@janetthompson3307]

You deserve every bit of praise given in the comments, your videos are professional enough for a National Geographic programme. I hope to see an increase in your views/subscribers. Thank you so much for all your hard work ❤

[@SiqueScarface]

Panspermia could be possible. But on the other hand, the evidence pointing to Panspermia might also be evidence for something very else: Abiogenesis might be easy, given the right conditions, as most building blocks for Life, including certain types of sugar, amino acids and other organic molecules seem to form spontaneously everywhere, as we even found them in comets and other types of Space dust. And that is the elephant in the room. Panspermia tries to avoid the possibility of Abiogenesis and replaces it by an "It's turtles all the way down" approach. Live on Earth came form somewhere else, and there it came from some other elsewhere, and there it was brought from some other place etc.. Panspermia has another argument against it: Time. Life on Earth is possible because Earth is rich in elements like Carbon, Oxygen, Sulfur, Nitrogen and Iron. Those have to be created by nuclear fusion in stars and stellar explosions, and they are generated only in small amounts each star generation. Astronomers talk about the metallicity of stars and stellar clouds, meaning the relative content of elements heavier than Hydrogen and Helium. It increases with time. Life on Earth is probably older than 3.5 billion years, and the metallicity of Earth hasn't changed much since 4.5 billion years. That's less than 9 billion years after the Big Bang. If sentient beings have sent out alien sperms to inject Life on other planets, they would have been formed on planets even closer to the Big Bang, meaning their home worlds had only half the metallicity of ours, making Life on them even less probable than on ours. So why should barren land bear the seeds to Life and spread it across the Universe, if later much more fertile ground is available for Life to form spontaneously there?

[@TheStarBlack]

Both theories will remain possible until we are able to prove that life can get started from purely chemical beginnings. If we can one day replicate that in a lab, it will add far more evidence to Earth life originating here.

[@24emerald]

I appreciate your challenge to the idea of active or designed panspermia. I agree that theory definitely rests on a turtles all the way down thinking. I also think The Big Bang theory is equally another "turtles all the way down" approach. It's much more logical that the universe is a balanced system that continuously creates itself while expanding as an infinite system. Think of it as an "abiogenesis approach" to energy and matter. It's just more logical and less "turtles down". So, as much as I agree with your abiogenesis assertion, which is most logical, "time" does not necessarily rule out "natural or passive" form of panspermia since time is not so much a limiting factor in an infinite universe.

[@SiqueScarface]

@@24emerald For the Big Bang we have pretty good evidence (Hubble constant, cosmic microwave background etc.). For panspermia, we have exactly none. Simple organic molecules like Ribose and Amino acids can form without a lifeform around, given the right conditions. Thus the presence of such basic building blocks of Life is no indication of Life, just a hint to a watery solution of some carbon and nitrogen, mixed with a few traces of phosphorous and sulfur, and then a strong electric discharge.

[@24emerald]

As I said, I agree, abiogenesis is perfectly logical. There is plenty of evidence to support it and there is no evidence to dispute it. And after all ... to state the obvious; We are here, and alive and as yet found no life anywhere else. I agree, you are right there is no direct evidence for any form of panspermia, natural or designed. The place we disagree is whether there is evidence that rules out its possibility. Your "time" argument is a good one. According to the modern accepted view of cosmology, the universe is only about three times older than our solar system. I agree, it is unlikely for life on earth to have originally evolved somewhere make it here and re-evolve all over again. The time argument remains a good one as long as the universe is only 14 billion years old. However, just because the Big Bang theory is widely accepted does not mean it's a "done deal". I don't agree we have "pretty good" evidence for it. There are alternative explanations for both the CMB and Hubble's law. What are the etc? I'm still waiting to hear some other evidence good evidence before I accept the Big Bang theory. Moreover, there are substantial problems with the Big Bang. Personally, I'm amazed it's so widely accepted and defended.

[@catmandenny]

At about 15:00 you brought up the point I use whenever someone says life came here from somewhere else or our universe sprang from the remnants of a previous universe. Both merely avoid addressing the question of how they began.

[@jackkessler9876]

I would like to see some speculation and artwork about what earth would have been like with fewer or no extinction events.

[@ulpetzmaznat1366]

It is correct to say that it just shifts the question of how life arose to a different planet. However there is another contingency that makes panspermia a bit silly - Earth already has everything needed to propagate life - the conditions, the materials and 4 billion years to do it. In that sense, it would be more of a surprise if it turned out that life NEVER arose on Earth and that Earth's life is not indigineous. The theory is plausible, but far less likely than spontaneous life arising on Earth by itself, so it's unnecessary.

[@milsthebard1085]

Fascinating indeed! I am always amazed by but what we don’t know, but can guess at.

[@1ifbyland2ifbysea]

Space is full of life, snakes are everywhere out there. I know a guy named morty who got bit by a Space snake. Turned out bad for the snakes entire civilization meeting morty that day. He should of stayed in the car.

[@silvereagle404]

everything came from space, even earth. so technically yes it did

[@brunov958]

The best channel on KZbin! Thank you and congratulations.

[@bitofphoenix8267]

My question is if panspermia is true what was the first reaction to start it? Since if life is being moved around the cosmos it all must’ve started somewhere and how did that life start?

[@eschel2155]

God?

[@shandu88]

@@eschel2155 Somebody or something made God also?

[@markmitchell450]

Only happens when all the right ingredients are in place not enough leaves just some of the basic ingredients perhaps for the future

[@khublaklonk4480]

That's the difficulty with most panspermia ideas. They don't really answer the question of the origin of life, they only defer it. "Where did life come from?" "From space." "How did it get there?" "From an older planet, blasted off by meteorites or the like" "Oh, OK. That's reasonable. How did it get on that planet?" "Oh, it arrived from space" "Now hang on a sec, if we go on like this, it's gonna be turtles all the way down..."

[@john-ic5pz]

fractals are so ubiquitous in nature and the maths that describes it such that I think it acceptable to say "the universe is fractal" and so life occupied all niches as a spontaneous "side effect" of it's fractal nature. I'll skip the "there's physical life, why not disembodied life/awareness too?" as panspermia suggests the earth is not a closed system, ecology/taxonomy may not be a "closed system" (physical only) either. 🤔 ✌️🤓

[@jimmyshrimbe9361]

Thank you for putting so much work into these amazing videos. It really shows and I love every video you've put out lol

[@TeethToothman]

Me too!

[@johannapetroff8459]

Awesome video. Thought provocting. I would say, if we are children of the Earth, we would also be children of the universe. After all, Earth is a child of the universe 💗

[@pedrovargas2181]

How do you recognize greatness? A team of content creators craft an interesting, thought-provoking quarter-hour video out of the pile of nonsense known as Panspermia. CONGRATULATIONS.

[@ColleenJousma]

I have been enjoying the series. This one felt like it was lacking some. Possibly it was my bias that I think the idea of an alien spacecraft flying around dumping material is foolish and annoying. I think that I am just frustrated you spent so much time on that part. But besides that, this series is still draws me in with it's visuals. I look forward to the next one.

[@charlesaanonson3954]

The so-called alien spacecraft would most likely be a comet. It is often stated that all of the earth's water was brought here by comets. There is no reason to think that was purified or distilled water.

[@johnree6106]

It's plausible because sailors seeded islands with food and water collection points the would leave chickens and pigs and even spread some plants. This way they could ensure that they would have fresh food and water for trips. You would want a place where you can get such resources it does make sense to seed planets like islands.

[@PhoenixBlade]

I think they forget the amount of heat and force that would happen to launch the microbs into space in the first place. After that, entry really isn't a challenge. That's why transpermia is very unlikely

[@WR3ND]

Hmm... seems unlikely, at least for what we would consider life as we know it. It's my understanding that DNA itself even if perfectly preserved otherwise would break down over these sort of time scales, taking into account the half-life of atoms and whatnot.

[@KAZVorpal]

Why would they be searching for one specific environment? Why not have a payload for water/carbon life, one for methane, one for silicon, et cetera? Then again, it's more likely that life just arises by default, in many environments. Especially carbon/water. Hell, if there were such missions, they'd probably be for the environments that have a harder time producing life, not the easy ones like Earth and Mars have.

[@echostar2007]

And that kids. Is how I met your mother 4.5 billion years later.

[@aceofhearts573]

You should make a video talking about all the different human civilizations and their explanation of how life began. Maybe there is something there. I wonder what ancient humans must have thought of this.

[@GlitchMonki]

think about it, EVERYTHING came from space

[@ivarbrouwer197]

MonkiJuan - we are stardust.

[@tehbonehead]

That's how EVERY it gets.

[@ivarbrouwer197]

Jason McGrath - Science isn’t made, it’s the observation and analysis of what is perceived to be factually there. It is not connected to any god or religion, nor does it place judgement on religion. Science and your god are not the opposites you make them out to be, it just tells you that any possible god is not hiding in plane sight. As a medieval astronomer once said to his fellow dogmatic believers who where just out to maintain the power of the institutions of the church: your god is too small. (If a god would exist, it would not be bothered with the mundane existence of men, earth or the universe for that matter, nor a man nailed to a cross by romans for no apparent reason because nature isn’t bothered by the morality man invents to judge itself and his fellow men)

[@cenzoredworld]

@@ivarbrouwer197 Well stated....

[@cenzoredworld]

@Jason McGrath " GOD SPOKE EVERYTHING INCLUDING SPACE INTO EXISTENCE"....Beautiful thought, where did you get that information from, a book (aka, man-made bs)?

[@deltadesign5697]

One of the best night time channels.

[@theidiotsarewinning2868]

I wonder if life originally forms in a nebula or other non traditional environments.

[@DeinoSarcosuchus]

Sorry to bump a 2 year old comment, but I had to say I like the way you are thinking!

[@ronaldronca6060]

What is so ridiculous about this hypothesis for human planetary occupation is simply that these humans would have had to trade their highly advanced celestial traveling environment for life in barren caves and fighting off predators with sticks and stones, tossing aside high tech weapons...would you do that, I know I wouldn't .

[@bazoo513]

Well, we have no evidence that Earth's life did _not_ begin via some kind of panspermia. However, panspermia is not a solution for the puzzle of abiogenesis - it just pushes it out of our planet. One can perhaps argue that some other world might have had more favorable, longer-lasting conditions for the first life to develop, but that's a pretty tenuous argument. I am still betting on indigenous life, perhaps aided by simple spaceborne organic molecules.

[@richardsleep2045]

Who knows. Space is just 100 miles upwards. But correct about origins - who made God? - Maybe that's why Chandra et al proposed Cosmic Panspermia, life just comes with the universe as part of the never ending package. At any rate I'm glad for this explaination. We know from fossil records that life evolved on earth, but "Junk DNA" and the mystery of Viruses provide a challenge to us. Thanks for making me try to think ;)

[@Literarydilettante]

Fantastic video as usual. I love The History Brothers.

[@oklahomasooner7686]

Anyone else still pissed that KZbin moved the comment section?

[@colemantrebor1610]

Every day

[@benjaminjones8782]

?

[@TheStarBlack]

Moved it where?

[@wollebay]

Honestly i forgot rather quickly that that changed but i think i like it now

[@jaysoncadano]

Yeah, I still find myself scrolling down to get to the comment section.

[@havokbaphomet666]

Best channel on the internet

[@vicariousgamer2871]

We are an absolute fluke. And in universal time we will all pass into the nothingness that we have always been and always will be.

[@john849ww]

Prebiotic life may have formed on comets and been deposited on Earth that way. If that were true, how common could prebiotic life on comets be? Common enough that many life-compatible planets or moons could be expected to have an impact from such a comet eventually? Our future investigations of Titan, Mars, Venus, and comets themselves will surely hold some clues. Edit: related paper: pubmed.ncbi.nlm.nih.gov/11538136/

[@EUROWEFILMS]

How lovely to be talked to unlike the brash American way of talking at one with out a break to draw breath..., a super production great graphics & above all food for thought. Thank you.

[@Pooyuck]

More good work by Leila Battison. Keep up the good work together.

[@Nmskull]

Then Jupiter should be full of life

[@markmitchell450]

Why though perhaps there's vital ingredients missing if there's any at all past or present

[@R055LE.1]

Actually, the main problem with panspermia is that spores are not COMPLETELY inactive. So while they could potentially handle the ravages of hundreds of years, millions are almost out of the question.

[@obi-wanea9364]

I just hope one day in my lifetime we will find the truth.

[@slaydog5102]

You will when he returns.

[@mecha-sheep7674]

The answer : find life on another world (Mars for example or Europe). If it uses different building blocks (other amino acids, other RNA/DNA basis...), then panspermia is ruled out. If it uses the same building blocks (DNA/RNA, GATC/UCAG) but we share no genes with it (no Luca), then panspermia is probably ruled out, but there will be a strong hint about a "universal pathway" for life to appears. If it we share some genes, then panspermia, or at least localised panspermia is a sure thing. If we don't find life, or fossile life, on Mars/Europe, then panspermia is probabl ruled out. If we find a black monolith, then...

[@pinchmesh8642]

Of course life came from space. The earth came from space. Our "modern" science has only been around for a little over 100 years, so no....we do not understand everything. We have reached an impasse with particle physics and quantum mechanics. Not much will happen until we get past it. Nor, will we be able to understand our past until we do. Lots has happened people.

[@mattperry2399]

The only reason I’d ever want immortality is to see cosmic events. We live such a short life in comparison to the time it takes to see such things happen

[@u.v.s.5583]

Imagine you are being granted immortality. Then some star passes by and ejects Earth out of its orbit into interstellar space. Temperature of below 3 Kelvin, darkness, nothing to eat, nothing to wear, and you cannot even die...

[@futotesan]

@@u.v.s.5583 Yea, just imagine that view. First the night time sky, but eventually even the "daytime" sky slowly coming more and more alive with stars was you retreat from the oppressive light of the sun. And to see the atmosphere eventually condense around you, slipping away to reveal even more of a vivid universe. Sure sounds peaceful...

[@stevejones1318]

What type of cosmic event? A supernova perhaps? They have been seen regularly, you just need a good telescope.

[@mattperry2399]

@@stevejones1318 I've changed my view since I posted this comment. But yeah a supernova would be cool, especially one that's close enough to see with the naked eye like Betelgeuse. It would be cool to see the Earth change, where life goes, what becomes of the rest of humabity. Of course though considering we don't become an interplanetary species then the time is limited for when the sun expands into a red giant. And a comment above mentioned a close encounter of our star system with another star could launch earth out of orbit. Really if I could, I would love to travel back to when the Dinos were around and observe them. Its hard to imagine such a primal earth with those big beasts. It saddens me when I look around and think about how Earth was once uncivilized and wild- and of course it still is but because of us it feels less wonderful. And I'm not complaining of course I benefit from the comforts we currently have. I'm dragging on haha.

[@qwertyuiopgarth]

Thus the difference between believability and impossibility. Panspermia is not believable, the distances and timescales are too great and the plausibility of live coming into existence on Earth without outside intervention is too high. But, despite the distances, timescales, and plausibility of local invention, panspermia is unlikely to be demonstrated to be actually impossible....just adjacent to it.

[@andybeans5790]

This is an argument from incredulity

[@richardsleep2045]

Try it mate, who knows. After all space is only 100 miles upwards ;)

[@NewNecro]

@@andybeans5790 phrase that works the same from incredulity that life is Earth-born, doesn't it?

[@lqr824]

13:24: heat of atmospheric entry and shock of impact. You're not giving a very full story here. The many many meteors come straight down or at an angle approximating it--say 45 degrees. These meteorites when discovered immediately are in fact often cold to the touch, covered with frozen air! While yes, they did just shoot through the atmosphere, they were also nearly at absolute zero until that point. The outside might heat and boil in re-entry, but the core of a meteorite of any size may well stay frozen and, once landed, cool the outside right back down again. That boiling surface may further abrade in re-entry (in other words, come off as dust, drips of molten rock, or even as gas) carrying the heat away and reducing the amount of hot outsides that need to be cooled by the frozen core.

[@Vespyr_]

We'd still be 'children of the earth'. Panspermia, has it in the name. If it's true, then it implies that Earth is the womb that birthed life. Regardless of what we discover about our origins, the earth is our mother. That is a fact. Not knowing the father, may simply have to be something we live with. Yet it's no mystery whose children we are. A planet that protects, nurtures, and thrives. With flaws, and temperaments alike. All panspermia does is point toward the fact, that the universe itself, functions very much like life itself. It would imply a much more vast concept of reproduction than I think we could ever grasp. Bonded to us, so universally to all life, with alternatives being rare exception.

[@TheINFP_Diary]

the stages sounds like how babies are made, love that all life has the same journey to go through to get here

[@Rog5446]

Did Life on Earth come from Space? What a stupid question, where's the Earth? IN SPACE!

[@deepdrag8131]

I see it going the other way. For example, we’ve already established that a place such as Jupiter’s moon Europa could support certain types of life - but that’s no assurance that there IS life on Europa. If there’s no life on Europa, we’ll export it to Europa.

[@ghuttsmckenzie4269]

I like the way you think!

[@Grabovsky85]

Never liked panspermia, just seemed like a god of the gaps. Plausible, but only brings up more unanswered questions. And of course Occam's razor just kills it.

[@deborahferguson1163]

It’s hard to imagine that we are the only life form, especially given the amount of everything thing else in the cosmos. And yet it’s hard to imagine what else could be out there…

[@ghuttsmckenzie4269]

It's something that inspires so much curiosity within me, it's just a shame I can't go out there to see myself.

[@chrisbaines306]

So you're saying adam and eve where born on another planet?😄

[@Dang3rMouSe]

IMO it is incredibly important we keep an open mind to all possibilities on the origins of Earth life, even the very slim chance of directed panspermia. Absence of evidence is not evidence of absence & we lack a hell of a lot of data. Even though we feel very advanced today reflecting upon our past, on a grand scale of humanity's development including our potential we are still in the infancy of our scientific evolution. As humanity moves forward & begins understanding far more about ourselves & Earth life while also exploring other celestial bodies in an effort to obtain more & more knowledge, I believe (as long as humanity continues) we will eventually obtain an answer or at the very least realize a very likely option.

[@karmasutra4774]

I wish we knew now. Seems cruel for us to have the ability to search and ponder with no real answers. Why did it have to be so mysterious? What was the point of all that? The whole thing is just bizarre.