Comet Mining

[@Aerostarm]

I jut wanted to say this because i felt like and i doubt anyone will care but I'll say it anyway. For the past couple of weeks I have been trying to start my own educational KZbin channel and have been trying to upload videos regularly. I sent Emails to many of the KZbinrs I liked including one to Isaac Arthur. I didn't get a single reply from any, except one. That was Isaac, who not only took the time to read myemail and reply to me, but he also watched my video and wrote back asnwering my questions and giving me helpful constructive critisisms on my videos after he watched them. It's just really nice to see and shows that he is not only a good youtuber, but also seems like a really nice guy. Thanks Arthur.

[@Aerostarm]

this video was good too btw

[@isaacarthurSFIA]

Thanks, and thanks, and good luck!

[@Eldagusto]

This was a really good episode because comet fundamentals are something so many of us are ignorant on. Let’s support new horizons!

[@potatosalad68]

There are like 12 comet related tabs open in my browser right now. This video couldn't have come at a better time. I'm in comet mood right now xd

[@supersleepygrumpybear]

great for cleaning tubs, sinks, showers and counter tops!

[@sicksock435446]

There's a game that just released recently called "ΔV: Rings of Saturn" based around being an ice miner. It's quite good with a lot of realistic physics and interesting but grounded ideas like "nanodrones", which are palm sized, laser powered robots which miners dispatch to rocks and are used to maneuver them via ablative surface paneling. Edit: It's also free to play right now

[@OpreanMircea]

free to play? on what platform?

[@sicksock435446]

​@@OpreanMircea The game is free currently. PC only as far as I know.

[@OpreanMircea]

@@sicksock435446 the demo is free, but but I checked on steam, epic games store and GOG but it's still 8 Euro, cheap but I don't think I'll buy

[@FiNiTe_weeb]

i checked steam, gog, and itchio and i dont see it being free, only a free demo on steam, which, well, is a demo

[@MehNamesKing]

On steam, it is currently $10. Definitely a steal, but certainly not free lmao

[@Nk36745]

Big improvement in reading speed including pauses. Feel like I can follow and appreciate the material because of this

[@theOrionsarms]

I remember that I read a book named "The heart of the comet" wroten by David Birn and Gregory Benford, was about a group of colonist that landed on the Hayley comet in 2061, and started drilling into the ice using microwave projectors to make tunnels and collecting the gasses to make polimer foam to insulate those tunnels, that was a nice example of living of the land, because if you live inside very cold chunk of ice you cannot live without insulation.

[@marklunn41]

Fun book

[@kaylinevans2017]

I have been looking forward to this since you announced it Literally my favorite topic on outer space just so happens to also be my 30th birthday today thanks for the informative gift

[@47DKDS]

Happy Birthday!

[@isaacarthurSFIA]

Glad you enjoy it and happy birthday!

[@kieranhosty]

Space mining is still a massive question mark when I consider how feasible it is with our current techniques. So many of our chemical and industrial processes require access to oxygen to react with, convey away heat, manage cooling, and so on. We could probably get a lot of raw elements by just heating up comet rock, but I imagine that can be a lot less efficient, meaning that if we want larger scale space manufacturing (e.g. megaton cylinders, Dyson swarms, etc.) We will be relying on lots of cheap energy. I'd love to hear more about the specifics of how we plan to refine moon rock into usable materials as a future episode. Love this stuff, thanks Isaac!

[@TheEvilmooseofdoom]

And on the flip side so many things in industrial techniques would like a lack of oxygen especially when smelting things. What IS handy is some gravity which is why I figure gather rocks in space, haul to moon and refine. I would not want to be the guy trying to invent ways to handle molten metal in zero G. :)

[@Rapt0rham]

@@TheEvilmooseofdoom Most space construction would likely be 3D printed sintered metal which potentially LOVES 0G, but if it had to be cast, then a sealed crucible, heated via induction coil, and shot directly into a mold is pretty much the the only option. The idea itself is pretty basic, but as usual it's just a matter of material science, also not to mention how much more potentially catastrophic factory accidents in space could be.

[@lukethedank13]

If there is one thing that this chanel thought me is that if its gravity you need you can always just put the thing in a drum and spin it.

[@innocentbystander3317]

As for energy, harnessing the abundant power of the sun is so much easier without a planet in your way.

[@TheEvilmooseofdoom]

@@Rapt0rham There are pro's and con's to 3d printing in both gravity and no gravity and I would guess that it depends on what you want to make. I was more thinking in the processing of raw materials into something you can 3d print or even cast. That usually involves some kind of smelting process for either purification or making alloys. Those jobs are a lot less complicated if you have a bit of gravity.

[@samyamamoto6613]

The best content on KZbin. Thank you mr Isaac Arthur.

[@markschroter2640]

Isaac I am sure you hear it often, but You're Awesome. Why doesn't anyone else talk about this kind of thing? Keep it coming.

[@jaycordray3642]

Agreed. Isaac is awesome! As a writer myself, his videos are a treasure trove of ideas!!! Really inspires and encourages creativity!

[@HamCubes]

You are too good to us, Mr. Arthur. I just realized that your name means _noble bear who rejoices_ or _noble bear who laughs._

[@peterxyz3541]

It’s not a comet, it’s a Vogon construction fleet! Beer, nuts and towel!!!

[@hamanu666]

A lots and lots of paperwork!

[@comentedonakeyboard]

So long and thanks for all the fish

[@ChrisHarmon1]

Bet the dinosaurs wish they had anti comet pills, and for the bargin price of 25 cents!

[@chaptermasterpedrokantor1623]

+1 for the petition. Keep New Horizons going!

[@JTL1776]

Can we get a video on Deep Sea Mining. Maybe even a remake of asteroid mining 6 years is like a millenia in technological and informational advancement in modern times.

[@isaacarthurSFIA]

Yes to both, though it might be a bit and deep sea mining is likely to be generalized ot ocean planet mining :)

[@acadiano10]

I really like this video, especially as a nitrogen source. My favorite comet fiction is the away team of Star Trek Enterprise building a snowman on what was named Archer's Comet while the Vulcans looked on, judging 😂

[@innocentbystander3317]

If governments are to be believed, Nitrogen is baaaa'a'a'ad. 😂

[@wascalywabbit]

I watched Halley's Comet in 1986 from the Marietta College Marietta Ohio telescope, at 1 time it was one of the largest telescopes east of the Mississippi River

[@DeltaVTX]

I caught Halley’s Comet on the way in and on the way out from the same field out in the country. If I’m very lucky, I’ll get a third view in 2061. Dad might not be there for that one…

[@lealeawalker1820]

Here after just hearing your incredible interview with Andrew Gold, fascinating stuff!!! ❤

[@isaacarthurSFIA]

Welcome aboard!

[@isaacarthurSFIA]

Thanks for swinging by :)

[@bbartky]

Thank you, thank you, thank you for sharing Dr. Stern’s message about restoring New Horizon’s mission. I just signed the petition and urge everyone else to do so.

[@BitcoinMeister]

I signed the very important petition mentioned at the end!

[@georgewindsor2667]

Issac Asimov did a specific book on Halleys comet, and in it he says that the comet would have been much brighter in the past, and on some occasionally come closer to us.

[@joz6683]

Will they find Frank Poole? Thanks in advance for another thought-provoking video. Day off from work, so chilling out, catching up on a few things.

[@isaacarthurSFIA]

maybe circa 3001 :)

[@Anuchan]

I'm also old enough to remember Halley's comet. In the northern hemisphere, it barely rose above the horizon, hardly impressive. The next one should be much more impressive, but I'm not expecting to live that long.

[@theobserver9131]

I love the stories that P.E. Rowe is writing based on the ideas he finds here!

[@johndawson6057]

Ooh any good ones?

[@theobserver9131]

@@johndawson6057 Well yeah...all of them!

[@theobserver9131]

@@johndawson6057 Check 'em out!

[@theobserver9131]

@@johndawson6057 I should have specified; they are available as audiobooks right here on youtube. He's a talented voice actor too... he does all the reading himself.

[@greggweber9967]

Comets do get into the inner solar system, but unless you're content with just impacting one, you'll have to basically match its high speed.

[@puddlejumper3259]

I'd love to turn these ideas into a game

[@sulljoh1]

Imagine seeing a truly great comet in the next decade

[@bitbucketcynic]

Nothing we know of is expected to put on a good show. The next great comet will probably be a first-time-in-history visitor that only gets discovered a year or two before the big show.

[@mtpender69]

ROCK AND STONE!

[@NinjabeeRedtricity]

Rock & stone foreva!! 💪⛏️🪨

[@jeffrogers210]

Comets are going to be expensive/difficult to catch up with in the inner solar system.

[@DanielGenis5000]

My favorite ice balls after snow balls!

[@scotteagle3597]

So my thoughts are more to using it as a "booster" more than a mine. If we put a lander down while it's close and headed out, and plot the course correctly, you just kick it out of it's orbital path and use the natural momentum to get something well out of the inner system before it even has to boost, if not use it as the fuel/ray shield/base for your out-bound shot... Just a thought, maybe it's not new, but I don't hear many people mentioning comets as more than resources, not as transport. Until 23 minutes in, just in time for you to end the video! More! Lol! Love your content, nobody else makes me think about the universe on the scale you do!

[@horsemumbler1]

3:07

[@james3876]

Been interested in this topic for some time, about to dig in!

[@brokeneyes6615]

“It’s the safest job out there!” -Professor Farnsworth

[@Emcee72]

Long time fan, love the content!

[@jonathanhensley6141]

There is so much resources in our stellar system is enormous. Why choose one over the other when you mine both over time. Awesome video.

[@Shatterverse]

I suspect that if _any_ comet gets spared, it'll be Haley's. Sorta like Yellowstone and Old Faithful - essentially a legally protected preserve and tourist attraction.

[@digitalnomad9985]

Do you think that the solid part of comet tails is a major source replenishing the inner system's supply of micrometeorites?

[@the_sage_of_dragons1881]

Notification Gang!!!

[@whoareyouyouareclearlylost323]

Hell yeah

[@GODOFEARTHREALM]

Lol😂

[@caitgems1]

Here

[@Oshidashi]

Petition signed! The 'comet fundamentals, as the top commenter called it, were really interesting and good to follow for a non-scientific, casual viewer like me, although I did have to rewind to watch it twice to absorb the info, because it went a little too fast for me (which by the way is not critique at all, I'm just sharing how it is for a somewhat lower educated person like myself).

[@davidbrin1]

At 9:30 into this fine episode Isaac goes into the dust crust model of comets... that I originated in my 1981 doctoral dissertation... and portrayed in Heart of the Comet. And leapfrogging colonization via the Oort Cloud was also innovated in that novel. Come on Isaac! Plug your inspirations!

[@MikeMuntDesign]

I'm sure it was nothing personal. Thank you for your many contributions to science and imagination.

[@isaacarthurSFIA]

Sorry David, I've noted that and pinned it in the comments, it really is one of the most thought-provoking books on the topic :)

[@lexpox329]

this comment comes off as a bit arrogant, you should know better at your age.

[@TheEvilmooseofdoom]

@@lexpox329 My thoughts exactly but then I realized he might just be a bit cheeky and was twisting Isaacs tail playfully.

[@greggweber9967]

Inclination of orbits and orbital mechanics is very important in space navigation.

[@Section8Spectre]

You sir are brilliant. One of the best channels there is in a sea of madness and mediocrity. Keep it coming 😊

[@deant6361]

New horizons needs to keep going !

[@antoniothegunexpert5955]

I feel lucky finding this before it blows up

[@paulwalsh2344]

I LOVE "Mining The Sky" by John S Lewis. One of my very favorite books !

[@pailsOfGrease]

"Additive Construction on the Moon and Mars with Melodie Yashar - not recorded due to proprietary information" ARRRRRGHHHH!

[@WFKURadio24]

John Lewis, Mining the sky....Great book! I have it on my shelf. Hard to find though.

[@davidbrennan660]

The IA Algorithm has a new resource and terrifying delivery system.

[@sarcasmo57]

Pretty exciting to think about.

[@jimpatterson5524]

has anyone noticed that whenever IA uses the term AU, he explains its meanimg -- and surely all regular watchers know it by now and probably have for thirty years (if they are 45 or so ), but, on the other hand he used the term "scattered disk" for the first time several episodes ago without explaining it and then the second time he used it (same episode as the first time) he did explain it. (he used it this episode, with no explanation) --just an interesting point since "scattered disk" is not as commonly used as AU.

[@donkalzone6671]

I prefer to imagine a tube-formed spacestation in which several industries are housed. Industries that can produce everything whats needed and refine all kinds of material from comets, Asteroid or planets. This spacestation carries a whole fleet of smaller miningships. Ships that can directly mine on moons or transport comets to the spacestation. This giant tube like spacestation can be increased in length or diameter if enough resouces are gathered. Its goal is to grow, to build a second one if it and all other kind of ships and needed material. This tube started as a combined rocket to reaches it target. When there it parts are remoduled to a rotating ring for artifical gravity. From there on, its main goal is to grow.

[@isaacarthurSFIA]

🌏 Get Exclusive NordVPN deal here ➼ nordvpn.com/isaacarthur It’s risk-free with Nord’s 30-day money-back guarantee! ✌ Sign the New Horizons Petition: chng.it/DPQ6cSWGk8 NSS Space Forum Registration: us02web.zoom.us/webinar/register/WN_7ZU_C6VHSkyoS91zVtPKkg#/registration Also with everything else getting mentioned in this episode, I somehow managed to forget to recommend Heart of the Comet by David Brin and Gregory Benford, which maybe even more than Mining the Sky is the big influence on a lot of our discussion of Kuiper and Oort Cloud colonization approaches... I especially recommend the audiobook as it's got some of my favorite scifi narrators performing it. Also-also, welcome everyone coming in from Andrew Gold's most recent episode that came out this afternoon, he is always a lot of fun to work with and if you missed my interview with him, check it out: kzbin.info/www/bejne/m2HPc52udruhhM0&ab_channel=AndrewGold

[@Eldagusto]

I signed up and donated. I’ve been frugal with money this summer cause of vet bills but I feel strongly about this to afford to support it.

[@caitgems1]

I remember when Haleys comet went past. I watched Sir Patrick Moore narrate its passage (I was 9) but didn't quite understand its importance at the time.

[@genericscottishchannel1603]

8:55 That measure of 1 AU seems a smidge off

[@SomeoneExchangeable]

Apart from being a really good episode, finally a genuinely good sales pitch for a private VPN with some good reasons to use it (often the reasons presented conflict with the little "inconvenient" fact that VPN providers often do have to work with local law enforcement, or they wouldn't be up for very long; and also that they do get hacked occasionally).

[@jonathanhensley6141]

I have the book mining the sky and loved the whole book. I wish Lewis could do a collaboration with you.

[@isaacarthurSFIA]

I asked if he was interested but he said his health doesn't permit it anymore :(

[@Yezpahr]

19:30 This seems crazy enough that it might just work...

[@generalnawaki]

3:41 giving mars water and air would be irrelevant due it lacking the magnetic field that would keep the suns wind from scouring both away AGAIN.

[@davidhenry5128]

This is a very slow process, and artificial magnetic field is an option for mars.

[@davidhenry5128]

By a slow process, I am referring to the solar wind removing the lightest elements such as hydrogen.

[@shardinhand1243]

something i almost never really get a chance to talk about is planet building, something entirely possible thanks to all the big but not to big to move asteroids wev found, simplest way to make a new world, is to lob a bunch of asteroids togather, we can make it any size, or shape we want... well... with enough time... the really cool planet shapes like star, cube, and double helix... :V yeah thats right my costum planet is double helix shaped! not becuase its practical but becuase it would look so damn cool!

[@TheEvilmooseofdoom]

You would need a LOT of asteroids to make an earth sized planet?

[@shardinhand1243]

oh god yeah, it would take tons, yeah it wouldint be fast to do it, but i just love the idea. since watching hichhikers guide to the galaxy.@@TheEvilmooseofdoom

[@shardinhand1243]

small side note on the topic, you ether want to maximize the bone density and muscle strength of a man made planets population by building the planet as larg, or as dense as the human form could tolerate, or you want to maximize fuel eficiancy of launching rockets by building a planet or planetoid with minimal gravity, of course you then have to compensate for a weaker population with powered exo-suites for visits to any other world.@@TheEvilmooseofdoom

[@comentedonakeyboard]

Earth Mk II (with improved geography)

[@shardinhand1243]

now with more columnar jointing basalt... :V columnar jointing basalt as far as the eye can see!, i love that stuff!@@comentedonakeyboard

[@Shatterverse]

Personally I expect that our oceans formed by all the water in our planet's makeup working its way up out of the inner planet and getting barfed out through very early volcanism. After all, heating up all that water is gonna build up pressure and encourage the mantle and crust to extrude it - agressively.

[@christophermeyer5986]

Have you anything planned for Halley's Apihelion? It is somewhere between Oct 29th and Dec 9th. (Sources vary on the date). It seems to me worth celebrating the return journey.

[@Runetrantor]

Gotta admit that though I never seen the comet, having been born a couple years after the last pass, I tensed a bit when you mentioned disassembling it. Like, there's many more, can we keep the posterchild? :P Kind of reminds me of when you speak of using the Sol planets for materials, and I feel like 'noooooOOOoooooo' about it. Maaaaaybe Mercury since its basically iron, but surely Earth, Luna, and Mars at least warrant keeping for cultural/historical reasons, even if they lose their importance in the far future. Specially since its not like any of these has some unique material we cant easily get elsewhere, like Earth has the sole source of some material that allows FTL or whatever. When I can begrudgingly accept we may want to dismantle it if its a benefit. Guess Im a bit sentimental about our important planets.

[@gammasea]

Something that really stuck out to me was what Alan Stern said at the end, that the New Horizons mission cost nearly a *billion* dollars. Is that all? Could Elon have theoretically funded 44 of these kuiper belt missions for the amount he pissed away on twitter? I know it's not so simple in practice, but that's just absolutely insane to me.

[@GotMyTowel42]

yep

[@james3876]

The people he bought twitter from can fo it now if they want...the money is still out there in someone's pockets😆

[@biosecurePM]

It's much more valuable to own twitter and have taken it away from the evil people.

[@leonardbakers]

It's not your money.

[@saurabhdas3412]

Hail(ey) Yeah!

[@isaacarthurSFIA]

nice one :)

[@Pacbandit13]

This made me think of the Europa universalis commet doom event

[@YellowJack1020]

The ice cream analogy was from a book called "lucifers hammer" , That's a deep reference

[@jimpatterson5524]

Came out in the seventies, didn't it? I read it, but fifty years later don;t remember that particular part. Always good to run into a fellow sci-fi reader..... However, I saved all the .vtt files (subtitles) per episode "I’ve ... heard it compared to ice cream being deep fried ...; ... or dipped in chocolate."

[@caitgems1]

Happy Arthursday fam

[@whispererofshadows2501]

I remember seeing Hale-Bopp beautiful with three tails in the half twilight crystal clear sky from England in 1997 😇🥰🖤☯️☮️

[@Andrew-zq3ip]

"One nitrogen and three oxygen..." Woopsie

[@isaacarthurSFIA]

Shit, where was that in the video? I assume that was supposed to be hydrogen and referencing ammonia ?

[@williansnobre]

Personally. I would love to hollow out a comet and make a farm on the inside and maybe make a station for space truckers on the outside

[@robert8659]

5:20 consider hundreds of thousands, PPSSIBLY millions. (bad English, just kinda stuck in my brain after you said it. )

[@ABQSentinel]

It's really obnoxious that we seem to have unlimited money available to send to Ukraine (a country that is not an ally and is of no real benefit for us to support), but no money available for our own citizens on Maui, and we're still giving NASA only a pathetically small budget in spite of the potential benefits to all humanity.

[@g.f.martianshipyards9328]

You don't send money to Ukraine, you send equipment. While the people of Maui deserve help of course, tanks and missiles aren't exactly useful against wildfires.

[@annalorree]

Maui doesn’t need 30 year old missiles that were about to be demilled because they are at the end of their service life.

[@daveharrison61]

​@@annalorreeplus it's always cheaper to spend treasure so someone else can fight a war for you, than blood AND treasure to fight it yourself.

[@lexpox329]

most of what we have sent to Ukraine was slated to be destroyed due to age or change of US war doctrine anyway. Ones mans trash is another mans treasure, as the saying goes. But I agree on the pathetic NASA budget when we have huge budgets for numerous ineffective government programs for various things.

[@mobydick5046]

By spending money on wildfires how to siphon 10% for the big guy?

[@vincentcleaver1925]

I hope we have people at Mercury and Venus in 2061. The view will probably be spectacular!

[@CeceKruchkoSmith]

Here from Andrews live. Another voice to add to my treasure box ❤🎉

[@isaacarthurSFIA]

Thanks for coming!

[@Cain1500]

Wouldn’t it be interesting if we used comets to reach the juicer belts like a free spaceship with resources?

[@altha2008]

I remember that Mark Twain was born on the day that Halley’s Come died the night it came back

[@isaacarthurSFIA]

I remember hearing that once, I have to admit I assume it was apocryphal, pretty nest coincidence.

[@jeffperteet2327]

I won't make it to Hailey's next, but I hope that somebody decides to catch it, or direct it into Mars to be mined

[@sethboyle778]

Hello, I love the channel and have binge most of them. Would you mind creating a video that gives your favourite books?

[@Allan_aka_RocKITEman]

I just started watching this video. Issac, you could have subtitled this: *_"ICE, ICE, BABY"_* {I will see myself to the door now...😉}

[@seanhewitt603]

Just watching the starship drive compendium, and a thought occurs about terraforming venus. The drive mbpt(?), the one that accelerates lithium through a drive nozzle, could it be used to mine, say sulfuric acid( mixed as sulfur dioxide)out of an atmosphere by pointing the exhaust directly upwards?, using a charge frequency that moves just the sulfur molecules...

[@petedude2lu3]

taking a comet ride could be a good way to leave solar orbit, but the mining ROI would take 100 years by Halley's. It takes months to get earthbound mining equipment running, most comets are only visible for a few days.

[@gabrielalejandrodoldan4722]

Yes

[@gaming_henry]

A civ mining comets and asteroids on mass using the body’s as the thrust would generate odd dust clouds visible as a tech sig. now where have we seen that?

[@swedichboy1000]

I do wonder, would it be possible to create a electromagnetic field on spacecrafts to "drag" metal rich asteroids?

[@Zetverse]

Hey Isaac, have you covered a list of books or tv series you'd recommend that viewers of yours should read or watch? I've been looking into foundation series and it has become a favorite (kind of ressemble Eve Online, which I've enjoyed so far) and I'll be getting into Babylon 5 after hearing a lot about in your videos. But there is this thirst, so I'd appreciate if you could point it out if you have made a list. Loving the content as always ❤

[@gareth5000]

Maybe it would disturb the delicate gravitational order of the solar system and cause another bombardment in years to come...

[@Byronjesk6004]

You should do a show on the people who might remain in our solar system after the sun dies, living off whatever matter and heat remains.

[@isaacarthurSFIA]

That has a real appeal, if you can suggest a good episode title I will seriously consider it.

[@jeff8267]

@@isaacarthurSFIA Dead Star Scavengers

[@isaacarthurSFIA]

@@jeff8267 That's a good title, sounds interesting and matches the topic. I will stick it on one of our image polls Byron. If you see it on there and it does well, shoot me at email at [e-mail] if you want to help review the script. And thanks!

[@toddzircher6168]

I saw Haley's when I was a young man, it was just as underwhelming as five year old you remembers it being. 🙂

[@MrBkbnk]

Thanks for reducing the use of A.I art in this video. Again, I'm a big fan, but I do really want to see the ethical issues of A.I generated art addressed. Thank you

[@TheEvilmooseofdoom]

How can you tell when the art is AI?

[@MrBkbnk]

​@@TheEvilmooseofdoom Generally once you've seen a lot of it it's pretty obvious. A.I art has a certain look to it where at first it looks like it makes sense but the more you look shapes seems to be overly complicated yet lack detail and flow into each other in jumbled and hard to read ways. The image at 21:40 is the most obvious example.

[@TheEvilmooseofdoom]

@@MrBkbnk Computer generated, but how do you know the creative mind behind it isn't human?

[@MrBkbnk]

@@TheEvilmooseofdoom Someone typed a prompt at some point sure, but that doesn't resolve A.I art of its ethical issues

[@Eldagusto]

Yeah let’s goooo!

[@Echo_Online]

"there's no safer occupation than mining..."

[@hamanu666]

😂

[@darreneriksen]

What's the music used in the very beginning? It's been in a lot of the newer videos, but isn't listed in the episode description.

[@jerryhoward6007]

Plasma Moon/Infinite plane/Flat Earth Reflection/World Map/?/ & The Nos Confunden Map/?/ - duck duck go!

[@drmwpn]

You would've been more impressed by it if your parents had bought you a sweet Halley's-themed Matchbox 1980 Chevy Pro Stocker.

[@RLDragonStrider]

Isaac. Started watching your channel a few days ago. Really, really good stuff. Love the voice. I want to ask, is there a way to ask you for direct advice regarding some tech stuff? I really am not that good at physics and math. Is there a way to ask a few questions? Are you willing to? I dont know how this works. Cheers!

[@robert-zg8or]

Love your videos

[@nyrdybyrd1702]

In 1986 (age 9), my parents told me I'd probably never see Hailey's comet again.. of course they also told me I'z gonna burn in Hell so yeah, not the nicest people on he planet & I grew to question errythang.

[@douglaswilkinson5700]

As I understand it Earth's water did not come from comets because their isotope mix does not match that of Earth's.

[@andypanda4927]

Well, problem of low grav/nul-grav environments leading to physiological problems for us humans will be a long term issue. On-going research may provide humans the necessary work-around.

[@congchuatocmay4837]

If there was an earth sized planet and you attached a rocket to its surface to move it slightly, would that work at all? Okay the rocket exhaust would fire out but the exhaust gas would not have enough escape velocity to leave the planet. It seems like nothing would happen?

[@Anthrofuturism]

How do you upload so frequently?

[@isaacarthurSFIA]

I honestly have no idea :)

[@Anthrofuturism]

@@isaacarthurSFIA legendary