“The answer is Definitely sort-of maybe” Me in a test

@dianagibbs3550

3 жыл бұрын

My favorite answer from science.

"The new virus did absolutely NOT fall to Earth from space" ...that sounds like something an alien would say.

@flyinmonkeydud

3 жыл бұрын

I got 69th like on this. I am far more proud than I should be.

@anarchyantz1564

3 жыл бұрын

Exactly, this is what they WANT you to think hence they stated oh they definitely didn't arrive here..... So what do you think Matt is, Lizard people? Techno Alien Deepfake? Squid in a human skin suit?

@Mech260

3 жыл бұрын

Lmao how you kno wht a alien would say?

@norman_sage2528

3 жыл бұрын

Spot on

@FirstLast-ll8zq

3 жыл бұрын

44 mag luv Remington unless you, yourself were an alien!

Great video I'm a virologist and you really know your stuff. I would like to point out that even if alien life was dna based and it used the exact same amino acids of earth based life, it would still be virtually impossible for it to be compatible with earth based life. This is because our DNA uses 3 base pairs to encode for 20 amino acids using tRNA. The possible combinations of the 4 DNA nucleotides aka A T G C are 4 to the power of 3 meaning there are 64 possible tRNA combinations (these evolved on earth and each of the 64 combinations are associated with a tRNA which cross links with one of the 20 amino acids). tRNA decodes and 'reads' the dna language of earth and to some extent is even unique to organisms too, in terms of possible codon usage frequency. On earth, because life evolved from a common ancestor, the table that decodes dna triplets into amino acids is (mostly) the same for all earth life and viruses here. There is absolutely no reason this would be the same on other alien worlds. Which means alien DNA would almost certainly be scrambled and unreadable by life here. For example every gene has a start and stop codon to signify its beginning and end. The start in DNA is usually the sequence ATG, which encodes for the amino acid methionine a process facilitated by the unique tRNA that cross links methionine. Alien DNA would need to use the exact same codon sequences and usage frequencies [which influence protein folding] for it to even be able to be read by earth based life.

@Eisenwulf666

3 жыл бұрын

But what if the very first rna viruses came from space (either on a meteor or through other means) wouldn't that mean that there could be similarities between the xeno and indigenous rnas? Or the common origin wouldn't be significant because of the way our cells evolved to interpret that information? I am not saying I believe that, just curious.

@craigtevis1241

3 жыл бұрын

Thanks! That was my thought but I wasn't sure the amino acid code was random.

@goldenwarrior1186

3 жыл бұрын

Ynnnoj V Why are you watching this channel if you insult people for being nerds?

@daffidavit

3 жыл бұрын

@@goldenwarrior1186 I've learned it's best not to even respond to trolls like that. They troll from channel to channel just to make waves. Then they go back to see who replied. Usually, they don't even respond after their first trolling comment.

@sdfkjgh

3 жыл бұрын

@@daffidavit: Just report them for hate speech and move on. The internet is like a garden: if we want it beautiful, we must extirpate the weeds.

"So yeah: Stars sneeze. You might wanna keep that six light year distance."

"keep that 6 light-year distance" LMFAO

@RSanchez111

3 жыл бұрын

Alpha Centauri is screwed

@ammarkhan6883

3 жыл бұрын

@@unsharded8503 at what speed can we cover 27 light years in 600 years? Don't think an asteroid goes that fast. Cause that would be a dictated asteroid.

@protercool8474

3 жыл бұрын

If you wear a Proximask Centauri it only travels a fraction of a light year. But that only protects us from Alpha Centauri, not the other way around.

@josephhausser3096

4 ай бұрын

​@ammarkhan6883 a small asteroid rounded by its own gravity would have very little inertial resistance and therefore would be capable af achieving relativistic speed escaping the solar system

@SuperJusSaiyan

Ай бұрын

Aaaaahahaa, I get it! Well done everybody. Congratulations.

And for the second half of this year please welcome, MARS-2020: Martian Astro-Respiratory Syndrome!

@euclidpanarchy1502

3 жыл бұрын

Ah yes, iron lung

@SarcasticDragonGaming

3 жыл бұрын

Clever on multiple levels, I like it.

@TheExoplanetsChannel

3 жыл бұрын

:S

@thomasridley8675

3 жыл бұрын

👍👍😁

@grayaj23

3 жыл бұрын

Wait . . . 2020? What happened to the other 2019 MARS viruses? HMM? Answer THAT. You can't expliain it.

I'm going to miss that painting when you can finally leave your house.

@theobserver9131

3 жыл бұрын

I really like it too. It's way better than the floating in space greenscreen we usually see him in. That makes his feet look funny.

@anarchyantz1564

3 жыл бұрын

I actually prefer this to the space one. I think we should keep him locked in his house. Probably safer anyway there.

@Lngbrdninjamasta

3 жыл бұрын

I just would really, really like a copy 😇💯

@NatePrawdzik

3 жыл бұрын

A painting? Those are water stains on a basement wall.

@sp00nesis

3 жыл бұрын

if she doesn't have prints of this (someone please link it if you know), please try to convince her to have some made! It's actually so captivating I find myself having to rewind the video from time to spacetime. There may be some rules within PBS about hocking family products... but that's why you have "unrelated" friends who just happen to reply to a comment with someone asking the specific question :) :)

That would explain why the planets seem so dead set on social distancing. I mean, 140 plus million Kilometers seems a bit much, but... Mars never washes it's hands, so...

@dra6o0n

3 жыл бұрын

Well the rich people want to live on Mars, when they have a perfectly good planet they are ruining. Its their loss if they have to deal with Mars viralogy.

@thePronto

3 жыл бұрын

@@dra6o0n 'the rich people' have no incentive to leave Earth; at least not until there is something worth having on Mars. It's always those who have no incentive to stay that go. Plus those that have no choice in the matter, like convicts and refugees.

@timbeaton5045

3 жыл бұрын

"....is there life on Maaaaaaars....." Well Mr. Bowie, it depends of what you mean by "life"

@fcgHenden

3 жыл бұрын

@@thePronto Exactly, if I had billions of dollars to burn, I wouldn't literally burn it on Mars where it doesn't have value. 😅 Being rich can't work if you're alone.

Brilliant ending speech there Matt 😂

@steefant

3 жыл бұрын

i nerded so hard when listening :D

@SpookyStorkRunningWild

3 жыл бұрын

LMAO that was hilarious, i don’t think most people understood the onion

@nemonomen3340

3 жыл бұрын

Someone link me Dr. Wile E. Coyote’s paper. The potential implications are revolutionary in RRC research. (roadrunner capture)

@adlockhungry304

3 жыл бұрын

For real! I open the comments section just to say that very thing! 😂

Next on history channel. “COVID-19:Alíen pandemic?”

@fernandobernardo6324

3 жыл бұрын

But it has to have that guy from Ancient Aliens.

@Eisenwulf666

3 жыл бұрын

" many people in the academic world have reason to believe it may have alien origins" Camera on an older bald guy with thick glasses " I cannot really deny it wasn't aliens" Ancient alien guy :" Aliens!"

@TheExoplanetsChannel

3 жыл бұрын

:O

@altareggo

3 жыл бұрын

Please don't give them any more bad ideas than they already have.....

@benrichardson7306

3 жыл бұрын

You meant to tell me they haven't made it already? Wow, what's taking them so long?

_"CAN VIRUSES TRAVEL THROUGH PLANETS?"_ *Aliens:* 2319!!! We have a 2319!!!

@nickleo7586

3 жыл бұрын

That means white sock lol 23 is w and 19 is s

@bluekid121

3 жыл бұрын

Nickle El Bago never realized how simple that was lol

@TheExoplanetsChannel

3 жыл бұрын

Wow

@LabGoats

3 жыл бұрын

Could someone plz explain to the uninitiated, such as myself?

@Mscape7

3 жыл бұрын

Travel TO, not THROUGH

The renowned Physicist Will E. Coyote and their Premium sponsors A.C.M.E...

@tales9476

3 жыл бұрын

Published in only the most reliable of scientific journals. ;)

@Xeridanus

3 жыл бұрын

ACME: A Company that Makes Everything

@goldenwarrior1186

3 жыл бұрын

Xeridanus (Up)

"The Onion" has great and accurate space news. 😄

@white6505

3 жыл бұрын

a great news source in general.

@niahaz1

3 жыл бұрын

''Europa's plumes finally explained: Underground ocean is in fact made of Perrier Sparkling Water.''

@ostsan8598

3 жыл бұрын

Xenonion is my only trusted news source.

@altareggo

3 жыл бұрын

Well, much more accurate than Foxy "news"......

@sdfkjgh

3 жыл бұрын

@tim smith: I heard that they closed down due to reality being weirder, stupider, and more surreal & satirical than anything they could ever even hope to come up with.

Intelligent Falling: Distraction required! My kind of science!

@HannahFortalezza

3 жыл бұрын

Or a certain cowboy's take: "That wasn't flying, that was falling with style!"

Having read most of Dawkin's "The selfish gene", the idea that viruses predate cells make total sense. The way DNA and genetic information strands have developed by pure physical and chemical stability and the ability to increase their own number compared to other variants... it just makes sense that some of those information bits turned into cells and multiplied and evolved more complexity, while other strands managed to hang around by hijacking that very ability without developing it on their own. I can only recommend anybody interested in this to read the first couple of chapters of that book which go into this. After that is all falls into place. @PBS Space Time: Have you guys read the book? :)

@peterkelley6344

3 жыл бұрын

Does that mean that the Earth never survived its first Pandemic (before life)?

@anabo6779

3 жыл бұрын

Now, imagine these viruses actually came from other planets. We would be aliens on our own planet.

@vtbn53

3 жыл бұрын

Why only most? I have read it from cover to cover at least 6 times.

@vtbn53

3 жыл бұрын

@Sammy Smith The idea of a gene is not a theory or an intellectual exercise, it's a demonstrable fact. What are you going to drag up next? A Creator?

@douglasking6714

3 жыл бұрын

I read somewhere that there was evidence of a type of dna that was simplier then rna and dna but I can't remember much else about it

I have always liked this channel, but just wanted to say that you have improved remarkably. It is great how you bring the viewer along with your emotional experience and are more comfortable taking time for pacing. Congratulations, it is a challenging type of performance.

I got to watch Dr. Wile E Coyote's lectures as a kid, and I attribute that to my fascination with (and failing of) physics.

the onion is so good that last time i opened it, i couldn't stop tears coming out of my eyes, accompanied by a burning sensation

@a-blivvy-yus

3 жыл бұрын

It's a great read, no matter how you slice it... lots of layers to every story.

I am sure the late, great Douglas Adams would be thrilled to know his name was mentioned on a science show along side the eminent W. E. Coyote.

I love this channel. Thank you for making space time a compelling and engaging subject for those of us who opted out of higher level education!

*This made me think of when I was ten years old and the Andromeda Strain (1971) made its first appearance on tv. Good movie, too.*

Thank you for keeping Douglas in your thoughts and in your programmes. I am a lifelong disciple, and it cheers the heart. May Oolon Colluphid feature you in issue #42 of his "God could never have made Earthlings THIS cool" series.

I’m a biology student watching these videos with my physicist dad, and it’s nice when our fields come together like this :)

That outro was great

I was wondering how he is going to get to "space time " from viruses

@mishael1339

3 жыл бұрын

Same, it took 4 sentences lol

@hhaavvvvii

3 жыл бұрын

You could even seen a head nod when he says the inevitable. It's like he's thinking "they know exactly what I'm about to say".

Please remember to keep your 6 light-years distance

@kyjo72682

3 жыл бұрын

solar distancing

@adm0iii

3 жыл бұрын

I'm looking at *you*, Alpha Centauri b!

Thanks again Matt!! For giving us yet another excellent extremely thought provoking presentation. :)

Man I love these videos. I spend a lot of time on the platform trying to learn as much as I can about science and math and by far this is one of my favorite channels I've found. Keep up the out of this world content!

@RSHastingsIV

3 жыл бұрын

Numberphile is another channel you might find interesting. A bunch of mathematicians playing with the more curious quirks of math like children in a sandbox.

@tonydedoscortados217

3 жыл бұрын

Sixty Symbols is very good too

@tonydedoscortados217

3 жыл бұрын

And Anton Petrov for the latest space news and he posts daily his channel is incredible too

@ChkSumErr

3 жыл бұрын

Thanks for the replies. I'll get around to checking them out.

Gravity from consciousness!? Good answer Matt, a good dose of scientific sarcasm it’s all it deserves.

Dr. Wile E. Coyote is my favorite experimental physicist. I love the quantum levitation experiments conducted at the tops of cliffs. Only when his consciousness revealed the quantum state he was in did gravity manifest itself. The fact that he survived each experiment is also conclusive proof of the many worlds interpretation!

First video you've done where i understood a 100% of it! Maybe more videos for people like me in 'the slow class' Love PBS

Always a pleasure to see a new video drop! Stay safe...

I loved the jokes at the end with the Looney Tunes reference. Brings back memories.

i'm comming to really like that background

@jameshallam3221

3 жыл бұрын

looks like it is made from bread

@Cronos804

3 жыл бұрын

@@jameshallam3221 i was just about to say : that art could just be a coffe stain and you would never know.

@happyputt9709

3 жыл бұрын

It makes me feel like alcohol

@thebrainless1

3 жыл бұрын

I'm coming to that background

@konoha1993

3 жыл бұрын

Looks like a NiN cover

Thanks buddy. Very informative, I learned a lot

I just discovered this channel and I'm hooked!

Yes I played Saya no Uta. RIP

I swear I've read "ASTROLOGY" and I was "WTF Matt!?" 😂

@andrewjacks2716

3 жыл бұрын

I'd love an April fools video where he explains concepts from Astrology with his usual scientific air and dry whimsy while citing ancient and medieval scholars as sources.

@SunOfG0D

3 жыл бұрын

But there is logic to stars and galaxies no? And quantum entanglement suggests perhaps there is a correlation between planets and stars too? Perhaps the universe isn't 95% dark matter but we're 95% blind? Perhaps there is no such thing as chaos/randomness? Maybe evolution isn't driven by random mutations and perhaps there is a mechanism to evolution/devolution?

@GalacticWoman

3 жыл бұрын

dont knock it lol it works;) pandemic was predicted in 2019 ..check out Leo King videos..he was spot on.

@briandiehl9257

3 жыл бұрын

@@GalacticWoman Yeah, we knew about it in 2019. That's why it's called covid19

@GameTimeWhy

3 жыл бұрын

@@SunOfG0D I don't know if you are making a joke or not but what you just wrote is word salad and doesn't mean anything. It's like it could have been written in "I'm 14 and this is deep". No offence.

I come here for the science but the humor makes this so much more wonderful. Thank you, Dr. Matt.

this channel is....just amazing.

Next episode: Did COVID-19 come from outer space?

@xevira

3 жыл бұрын

Must have been that Oumuamua turning all the frogs gay!

@gklnth187

3 жыл бұрын

1:09

@jenaf372

3 жыл бұрын

It came from space riding retrocausal 5G waves emited in the upcomming apocalypse caused by the new world order. (Also called 'the human instrumentalliy program')

@ememmeme8722

3 жыл бұрын

YES! remember that the universe is a Chinese territory since ancient times.

@tsanghin866

3 жыл бұрын

@@ememmeme8722 You got the right point LMAO

"I'd like to share a revelation that I've had during my time here. It came to me when I tried to classify your species and I realized that you're not actually mammals."

Thats so great and informative.

Now that's a backdrop. Thanks for keeping up production quality.

So, we can have an asteroid impact and alien virus wrapped up in one convenient single apocalypse? Oh please don't give 2020 any more ideas D:

@vucubcaxis

3 жыл бұрын

2020 seems quite creative.

Additionally even if they used DNA/RNA the Codons would very likely be different.

@JordanMayjor3p7

3 жыл бұрын

Indeed. It would be like a virus that only affects cats not being able to infect humans, but even more extreme.

@FirstLast-ll8zq

3 жыл бұрын

Not to mention there could be a left/right hand version of DNA, making it impossible to synthesize new ‘alien’ virus’ via Earth’s biology

That ending. Gold. Pure gold.

I love your videos because of your passion and technique. Yet my brain hurts after every episode. Lol, that means I'm learning, right? Anyway, thank you for not dumbing it down for me. I love learning the correct way, and have nothing but the up most respect for you. Keep up the amazing work.

I know it can travel from Uranus to anywhere

@WHYNKO

3 жыл бұрын

Yeah definitely from Uranus to Uranus too😝😝

That coronearth virus in the thumbnail though

@TheRABIDdude

3 жыл бұрын

I guess it's showing a virus leaving earth rather than arriving, but they left it intentionally ambiguous for clickbait.

Amusingly, "throw yourself at the ground and miss" is a somewhat apt description of orbital dynamics - the miss just isn't because of distraction, but because of speed not aligned with the direction of the fall.

Excellent video on the speculative field of Astrobiology. Speculation on virion particles being associated with the gas giant's moons having oceans and thermal plumes emanating from said oceans is interesting and worthy of investigation decades from now when a capable probe can be sent. The Virology course by Vincent Racaniello at Columbia University's Medical School is very interesting, informative, and worthwhile, and is comprised of nearly 30 well-illustrated lectures each being over an hour in length. Vincent co-authored a leading virology text, Principles of Virology, about 1000 pages of state-of-the-art information on virology.

11:37 Even if life somehow must end up using DNA or RNA it is astronomically improbable they would evolve the same code so even if it manged to get into your cells your cells would make something way different (not more viruses) than what would be made by the alien cells that virus evolved with.

@RSHastingsIV

3 жыл бұрын

It is entirely possible that there is a limited number of viable proteins when it comes to life. Life on earth may or may not be near that hypothetical limit. If this is the case, there is no guarantee that life on earth is immune and may even imply it's far more likely to happen than not. Until we find some alien life to compare ourselves with, such confident absolutes of yet or no are not viable.

@irvingchies1626

3 жыл бұрын

Well, if you compare yourself with the only alien life form we know (illegals) we are kinda sure we can infect them and they to us 👽

@goldenwarrior1186

3 жыл бұрын

WarmWeatherGuy “astronomically improbable” pun intended?

@rmsgrey

3 жыл бұрын

RNA codes for proteins through the existence of molecules that connect specific nucleotide sequences to specific amino acids. The range of such molecules that are possible is going to limit the number of possible codes. If there are relatively few possible codes (or some are much more likely than others) then the odds are a lot more in favour of independently evolved life using the same code.

@cppguy16

3 жыл бұрын

Even if each amino acid had the same 3-letter code as on Earth, that wouldn't be enough. Life is far more complicated. A protein is a folded chain of amino acids, and the precise folding depends on enzymes. Most letters in the DNA aren't even coding for amino acids. The mRNA needs to be trimmed, small chunks have to be cut from the middle and reassembled before translation can be successful. There's a code for start and stop, which would have to be identical as well. There's error correction and housekeeping built in. There are enzymes to pack the DNA tightly, untangle any knots. Then the same proteins don't function exactly the same way in every animal. There's a reason why viruses have a hard time jumping even from chimps to humans. Most viruses are completely harmless to us, unless they come up with a random mutation that turns out to be the jackpot. If you inject a random mRNA into a complex organism, chances are it's going to be completely harmless. Modern life is very effective at finding intruders. A successful virus would have to be incredibly effective at deception and reproduction. It also has to convince the infected cell to package it into the perfect protective bubble, and it needs to be escorted out of the cell in one piece. Alien life would have to be exactly like ours for that to work.

0:47 was that animation necessary? lmao

16:10 Epic burn! I shall study this approach and apply it :D

This is such an excellent, accurate, interesting video!

He said he would provide some links to expert analysis of the virology in the description but didn’t 😞

@goldenwarrior1186

3 жыл бұрын

Jeffrey Arana Guys, like OP’s comment so he sees it! Edit: nvm it’s here

@vblaas246

3 жыл бұрын

RCSB website - Virus Structures poster

@pbsspacetime

3 жыл бұрын

Sorry about that! Links are now the description as well as here: Dr. Vincent Racaniello's Columbia University virology course: kzread.info/head/PLGhmZX2NKiNldpyRUBBEzNoWL0Cso1jip PBS Eons Where do Viruses Come From? kzread.info/dash/bejne/imdlyZeNcpCzgtI.html

@vickyprabhat

3 жыл бұрын

@@pbsspacetime Thanks team!

@vickyprabhat

3 жыл бұрын

What the heck, its a complete lecture series with 20 hrs of contents.! I was hoping for a little more elaborate video, but that is like the whole information known to humans!

You'll definitely need a "Sarcasm Warning" at the end of the video, tho.

@photinodecay

3 жыл бұрын

It's not sarcasm, it's legit literary reference :D

@benrichardson7306

3 жыл бұрын

I thought the same. Guaranteed there's someone out here who didn't get it as a joke and now thinks they can fly, if they just concentrate hard enough, and jump off a cliff.

I saw Radio Pandspermia last week at the Tacoma Dome, in fact. You've heard them -- they had that one video that went . .. No I can't do it. You win this round, decency!

I forgot that bit from hitchhiker's guide! Always so clever. Isn't falling to the ground yet continually missing just a stable orbit? It seems, in fact, the missing that presents the difficulties.

"We're a virus with shoes" - Bill Hicks

@TPerm-hj4sf

3 жыл бұрын

Refer to yourself.

Your teleprompter (or cue-card) was a bit more to the left of camera. Thus it was a bit difficult to focus. But great content. I listened to it twice. 👍🏽

@cortster12

3 жыл бұрын

Can't unsee.

@TheAmazingCowpig

3 жыл бұрын

The visual equivalent of having slightly de-synced audio.

@Ohmloud

3 жыл бұрын

Yep can't unsee..

@prabhat1729

3 жыл бұрын

@@TheAmazingCowpig Aptly put :)

i had this question like 4 months ago couldnt find much on it nice video

Awesome show as ever. Stay safe guys.

PBS space time: virus can come from space Pokemon: created Deoxys as a space virus/DNA space creature years ago Me: they knew!

"The viruses aren't coming to us. We have to go get them!" Let's not.

@BlatentlyFakeName

3 жыл бұрын

To late, China just opened a space market

The last 90 seconds are the best part of this entire video.

I just wanted to comment how cool the thumbnail design was. Good job!

Oh cool, just what I want to spend some time thinking about

@Bigbuddyandblue

3 жыл бұрын

🤣👍😝

@BoxStudioExecutive

3 жыл бұрын

Time to watch The Expanse

Astronomers: Can viruses travel between planets? Deoxys: Allow me to introduce myself.

Mind blowing hearing you talk about astrovirology in place of astrophysics. In my humble opinion, you did a stellar job with your presentation and information provided as always. Regarding the general topic of virions being able to survive interstellar travel... is rhetorical, Of course it’s “possible.” Specifically those virions that are equipped to overcome the extremes of space (temperatures, radiation, gamma rays and microwaves to name a few). Said virions are more statistically possible to survive panspermia than the virions not equipped. However, its’ survival depends first on the droplets ability to be intact within the environment then we are concerned about the virions virulence. In other words, no droplets=no virion transmission. You may hear the term virulence interchanged, referring to the strength of infection associated with a specific virion as well as how the virion survives within an environment. As do extremophiles need the proper structures to thrive within harsh environments, so do virions; and as you you pointed out, there are a plethora of known organisms able to survive the unthinkable (tardigrades, bacteria and viruses). Whether we define virions as living or non living, they have the ability to propagate utilizing the host cell; sounds like a definition of life to me. . Virions came before us and will continue to survive after us. As I always say... If there is one, there are many. Peace. Dr. Breaux

The tree of “Life” Love it ☺️

If viruses really predated cells: how would they survive and replicate themselves?

@n0tthemessiah

3 жыл бұрын

There are RNAs which are self-replicating, as well as RNAs that can manipulate/modify other RNAs.

@swlk9996

3 жыл бұрын

There are many hypotheses for the origin of viruses. In A couple of them viruses did NOT predate cellular life, exactly because of this reason. Viruses nowadays need cellular life to replicate. So (in those hypothesis) viruses don’t predate cellular life.

@netkosent1620

3 жыл бұрын

He answered that when he brought it up. :P RNA-based viruses.

@knyghtryder3599

3 жыл бұрын

Infecting weaker puny viruses yo!

@killthemwithfirelol

3 жыл бұрын

They didn't predate them so much as branch off from a common ancestor. Remember, a virus isn't quite living, like a cell is. Cells are made of many different components, but none of the individual components are living, either. If you take away some of those components, the cell stops functioning properly, but doesn't always stop existing. Some components can be preserved by the cell wall and such, functional or not. Now rewind back to when cells weren't very complex. There were many things that contained genetic information that weren't very viable in their own right, yet stuck around anyway. Things like protobionts were very similar to viruses, and they contained very little in the way of complexity, but they eventually came to be cellular life. Just as humans departed from other apes, so too can viruses depart from a primitive common ancestor that weren't quite cells, but getting there.

Space, other planets, worlds: exists* Viruses: Hey that's free real estate

@sdfkjgh

3 жыл бұрын

*G E K O L O N I S E E R D*

Thanks for the Great Video :)

I loved your response to "Gravity is the result of consciousness".

Scientists: Let’s look for space viruses! Everyone else in 2020: No! Please stop!!

Me reading the title : "oww.... crap!"

@thebammer5166

3 жыл бұрын

Me reading the title: FRAK!

Good research

Great video, just a couple of corretions. Viral genomes can be composed of double stranded RNA or single stranded DNA - positive or negative polarity (yes they're wierd), also most viruses do not integrate their genetic material into the hosts, that is manly a characteristic of retroviruses such as HIV. All the best!

Thanks for watching....This episode of space time was sponsored by the Wuhan centre of virology

@RSHastingsIV

3 жыл бұрын

@Ψ I've been pretty settled on my opinions of the viruses origins for a while and figured I'd leave it at that, avoiding most the political hype surrounding it... but yours is like the 5th comment I've seen in under a minute blaming 5G. Am I missing a punchline or is that really a current theory people are sharing?

@JeanPierreWhite

3 жыл бұрын

Wuhan has a secret portal to a parallel universe. Obviously.

the ending was brilliant! lol :D

You guys should do an episode about possible postulated alien life. Like Sagan Floaters and Hunters and weird stuff like that.

One of the very few Space Time videos that I completely understood!

@theobserver9131

3 жыл бұрын

....virology is as fascinating as astrophysics. I still want to know what made nature decide to begin assembling protein codes for no apparent reason. Especially if viruses predate cellular biology..... one of the biggest WTFs in nature.

I vaguely recall reading an early proponent of panspermia posited that viruses and bacteria raining from the heavens was why our noses evolved to point downward. I also recall something about a camera brought back from years in space having stretococcus in the lens housing... I'm going to take a rain check on the nose design thing despite that though.

always gotta stay for the bits at the end

Well done covering this topic, it seemed out of the range. People will still think of aliens though, they are like a deity, they are there as an explanation when we're too lazy to search for one.

This idea was explored in Crichton's book, The Andromeda Strain. The universe has a lot going on and we only see a tiny bit of it.

Slight correction from a virologist in training: Most viruses do not integrate their genomes with the host DNA. This is only retroviruses like HIV. Most DNA viruses replicate their genomes as extrachromasomal, circular DNA called an episome. Most RNA viruses replicate in the cytosol, not even entering the nucleus (with the exception of influenza). RNA viruses generally use their own polymerases to replicate (with the exception of Hepatitis D Virus). What all viruses rely on from the cell is the protein manufacturing machinery, which is the ribosome, which is complex, requires a lot of genetic material, and has lots of associated regulatory factors. It also includes all the tRNAs that carry amino acids to the ribosome, the tRNA synthetases that link amino acids to the tRNA, and amino acid synthesis machinery. As @Drakenkorin27 pointed out, organisms on earth have specific codons encoding for amino acids which were apparently decided in a somewhat arbitrary manner early in the history of life, therefore it would be surprising to find life on other planets using the same code. I think a still unlikely, but slightly more likely threat of alien infectious disease would be prions. These are protein only infectious agents that have the ability to induce misfolding and aggregation of host proteins in a way that resembles the original prion. Then these prion proteins can then be transmitted from person to person, continuously inducing these protein misfoldings. Mad cow disease is an example of this. I think this scenario is more likely, because it doesn't really demand many similarities between earth proteins and alien proteins. Plus, some proteins can form highly stable crystal structures, like the ones in tobacco mosaic virus, which would help them weather space travel.

I read somewhere that astronauts often start to shed VZV immediately after space travel. Perhaps a follow up video? Including the Immunosuppressive effects of space travel.

“Definitely, sorta, maybe” is my new favorite answer :D

I let all the ads play fully.... your welcome...no need to re-pay... Your videos will do. p.s. the CGI was really immersive!👌🏾

Fun(or not so) facts: Apollo11 crew have been quarantined after returning from moon, to minimize the risk of lunar viruses oubreak.

Of panspermia is an actual mechanism then if its quite common there could be a back and forth between planets and perhaps different star systems that would allow dna and rna to be somewhat compatible depending on how much they would mutate when in different planetary environs.

I assume I am not the first one to point this out, but many viruses do not insert themselves in the genome (on purpose st least). Arguably the simplest viruses just hijack the cellular machinery directly. Inserting into the genome is actually an extra step requiring extra proteins to accomplish.

...14:00 thank You for the answer!!!!...:D

I like this format. Feels a bit more personal.

Regarding the last comment response on this video I agree with the question as is everything not measurable because we are conscious? Based on ideals relating to Superposition.

Hey thanks for the great video. Related to this topic, I wonder if you would be interested in covering Quantum Biology, specifically the topics in Jim Al-Khalili's book: Life on the Edge: The Coming of Age of Quantum Biology. Since this channel covers quantum mechanics, I think it would be both fascinating and educational topic. I don't know how much of established science it is yet. Cheers from Finland.

Funny. These ideas have crossed my mind many times before.