How Much Do Rockets Pollute? Are They Bad For Our Air?

[@bradcoon5226]

I am totally digging the - "Source : Tim Dodd" video footage. That's gotta feel good to know it's your footage. That's a total milestone for Everyday Astronaut

[@JJodalen]

He makes the music as well, I think it's really cool.

[@exoplanets]

Yes

[@barrymacockiner3825]

the effort behind each of these videos is mind boggling- you're doing an amazing job tim

[@rolek45]

Q

[@Maximiliano.Montero]

People: "I'm becoming crazy after 2 days at home" Same people: "I'd love to go to Mars, it's my dream"

[@ryndrssn]

Introverts: I was born for this

[@thejimmydanly]

As a major introvert, when I read about the psychological issues a Mars mission faces, most of the listed problems look like major benefits to me.

[@ryndrssn]

@@thejimmydanly As an introvert myself, i rather be isolated, especially on another planet. Plus I am onboard with Elon's " I'd rather die on Mars, just not on impact" thing. I-got-hit-by-a-car death is boring.

[@totalermist]

The introverts often forget that they're anything but alone on Mars. Pressured and temperature-regulated real-estate will be a scarce commodity during the first years (decades?) on Mars. You'd be sharing a small habitat with dozens of people with very little privacy. Think Antarctic research station or submarine, not city apartment or loft. Oh - and pretty much no Internet as bonus - no Netflix, no YT, no Disney+, no Snapchat no TikTok.

[@AndyOO6]

lol before the "event" and after the "event" my life is more or less the same so far, stay at home all day, and only go out when I must get things... I think I've spent years training for life in space lol jk.

[@nobodynemoq]

I'm really late here, over a year late. Your videos are literally HUGE. But these are also that comprehensive, with so much information provided, that every minute spent on watching them is worth it! Thank you! 😁

[@darklight2k79]

One small upload for man, one giant leap of watch time for mankind

[@Rasheed1494]

darklight 2k7 clever I love it

[@dismiggo]

a man*

[@darklight2k79]

@@dismiggo sorry I was sleepy

[@dudezgamez550]

Raipers

[@exoplanets]

True

[@zachm4635]

This will be a easy quick video- Tim March 2019

[@dabaschti9814]

Insert picture of Tim 50 years in the future, where he's still Not done Researching

[@ValentineC137]

@@dabaschti9814 as he publishes re-upload no. 74 with new data and corrections

[@tiagol8200]

Next video is going to take him until next year.

[@demonsagex]

Super easy, barely an inconvenience!

[@chloewebb5526]

I'll start chiseling the tombstone

[@bmet001]

Thank you so much for your time and stress making this. I'm an atmospheric physicist I’ve been wondering the same question for years and haven’t even dreamed of having the time to investigate all the complexities. Honestly this is enough research to be published into a paper. It makes me want to turn all my research into videos rather than papers that nobody will read... much more impact through a video!

[@BradleyG01]

Go for it man! I know nothing about atmospheric physics and would love to learn some!

[@weatherwaxusefullhints2939]

Yes, give me those vids!

[@weatherwaxusefullhints2939]

You only have other stuff on your channel. Boring stuff like survival, sports and drones. Where are those sweet sweet lectures???

[@bmet001]

Weatherwax 😂 sorry my bad, let me whip one up for ya 😘

[@ChadDidNothingWrong]

You should do both!

[@Voyager_AU]

I am 35 minutes in and I just realized the sign behind him changes colors. Great job with the video Tim. You make boring stuff interesting.

[@Aerospace_Gaming]

yea, same I am only 30 minutes in though

[@azerwhite8870]

55 minutes...

[@Voyager_AU]

@@azerwhite8870 LOL

[@dlt074]

spoiler alert

[@Benoit-Pierre]

Because it does not change before that point.

[@wannabecriminalman]

"Why is there smoke coming out of your rocket, Elon?" "Oh, that isn't smoke, it's steam! Steam from the water deluge system. Mmmm, water deluge."

[@randomguy-jd8su]

MmmmmmMMMMMmm

[@Adi-rz2ye]

Mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

[@davisdf3064]

Mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

[@essence6603]

MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM

[@hilbertmanalo5850]

MMMMMMMMMMMMMMMMMMMM, A WATER DELUGE

[@LisaStojanovski]

This was such a fun video to work on with you, Tim. Rockets are awesome!

[@andylaweda]

I wish I knew how to boost this comment somehow!

[@tuberroot1112]

Big thanks Lisa, Tim seemed pretty well informed about the basics of climate - sadly quite rare because of all the partisan shouting that goes on - and I'm guessing that is largely due to your work ( plus Tim having the sense to employ someone do the research ).

[@pranavkonatham2428]

Thank you Lisa

[@HarryPorpise]

Thanks! :D

[@michaelbalty2750]

Lisa Stojanovski Finally got a chance to watch this in it’s entirety! Great job, Lisa! Hard work pays off! Good work as always, @EverydayAstronaut!

[@nickvangeel]

Lets just be clear, it took a global pandemic for Tim to finally finish this video. Love you Tim

[@exoplanets]

.

[@staph8022]

.

[@small_SHOT]

.

[@lennargon5755]

When 55 minutes feel like 15 minutes, you've probably watched a video from Everyday Astronaut

[@Houtkabouter123]

That is so true. Well done Tim! Keep them coming.

[@confusedaardvark7662]

whilst playing kerbal

[@ianmangham4570]

Just found this channel and I'm impressed

[@KasperLidegaard]

True true, I didn't realize that it was that long before I read your post. Again I love these videos.

[@niclasschulz6142]

or smoked weed

[@mayankshrivastava3554]

I can't thank you enough for this video, I have been in arguments with people about rocket pollution, trying to explain them how they are not half as polluting as they look at launch. And how the value that we generate from a launch outweighs the negatives of one. You put it all together really well. I am going to share this everywhere and will use your video every time I get into an argument regarding rocket pollution ever again. Also, I have said this before and I say this again. What an incredibly researched video. Tim, you are setting the gold standard for KZbin production quality. Videos so well worked out we can learn a lot of rocket science by watching them and reading the resources. Great graphs this time around(animations otherwise), very well crafted and amazingly structured. I love everything you do, have been doing that for a long time and intend to continue it for the foreseeable future.

[@EverydayAstronaut]

🙏🙏🙏

[@AngelLestat2]

@@EverydayAstronaut Nice video!, here some questions and some things that you might add: 1-Why you use the case of a single starship without the booster for long range passenger transport? Elon used the booster for that, not sure that an starship loaded with 400 passengers (around 50 tons of payload) could reach very far being reusable. I don't know, I am asking. 2-Water vapor is not even comparable with co2, it is a more potent greenhouse gas, but it last only from days to few months (depending the altitude) vs hundreds of years of co2, then we also consider that most of the emissions happen at lower altitude instead at higher altitude. 3- Electrolysis does not consume much energy, today electrolysers are at 90% efficiency, current liquefaction plants are at 70% efficiency, but just scaling up (which you need to make rocket fuel) you can have a plant with 85% of efficiency. One more case, you need to store solar and wind energy one way on another into hydrogen to solve the seasonal disparities and to clean the other 50% of global co2 emissions that came from the utility transport sector and the natural gas grid, those thing can not be solved with batteries (is not practical neither cost efficient). 4-You mention how many football fields of solar panels are needed to make enough fuel for the starship on mars, but you did not mention how much time it would require to fill those, is not the same that amount of panels to refill a starship every 1 month than every 2 years.

[@hemprope4326]

This dude makes fantastic videos.

[@almondpotato9483]

I didn't know what "in detail" meant... until I watched a 55-minute video to answer a seven-word question.

[@kokofan50]

Simple questions have some of the longest answers. Some even have whole fields of studies dedicated to them.

[@limiv5272]

I take it you're new to the channel. I recommend the equally long video about the different types of rocket engines

[@lancereaudamien]

And he didn't take the manufacturing into account. ^^ That's why people do 3 to 8 years PhD to answer a question.

[@gavinmcintosh7022]

CO2 to CH4, can home solar do that to run small engines? Big CH4 plants can power gas turbines etc? Methane powered container shipping? Pollution from latest rockets is so small. Thanks for the numbers.

[@mdeblan]

The lovely life of studying through problem oriented project work 😂 my life for the last 4 years

[@洪旻勝]

This is beyond KZbin level. This is a Ken Burns-level documentary. Amazing work! :D

[@ethannorton564]

Watch the aerospike video it's longer and better

[@rodolfoyoshii8345]

Hahaha "Ken Burns" haha

[@chrisrandom7409]

I love these long videos, Tim. They obviously take a bunch of work to make them, great job!

[@14rs2]

Rockets aren’t the problem. There are so many other things to focus on before people start complaining about pollution of rockets. This video is amazing man and so insightful. You are a legend! Keep up the brilliant videos man.

[@mron-2617]

Java Man True. Rockets do not launch frequently either so rockets are one of the last things to worry about

[@thethirdman225]

14rs2 Depends on the Rocket. Anything using hydrazine (UDMH, MMH) and di-nitrogen tetroxide are pretty bad no matter how you look at it. The fuel and oxidiser are both extremely dangerous and their by products are extremely dangerous. They are also hypergolic. While it’s not pollution in the generally accepted sense (growing problem, contribution to global warming, etc.), all of those things post immediate problems before, during and after launch. But they are used because they still give very good performance.

[@TroySavary]

Rockets are not a problem if we continue to use them as we do now, taking payloads to orbit. If we try to implement Elon's dumbass idea of replacing airline travel with rocket travel, then the number of launches increases to the point where it becomes a huge problem. The ozone layer would be decimated by thousands of re-entries a day. But as long as Elon gets his daily fix of Twitter attention, he doesn't care if his ideas are feasible or not.

[@Schmidtelpunkt]

Rockets aren't the problem yet. And that is why now is the perfect time to discuss those issues so the companies don't start their usual song of how much it would cost and the economic loss of switching to better methods, like those people always do when left unattended for to long.

[@extrastuff9463]

@@javaman4584 Like Joe Holland stated, they aren't "completely unregulated" but definitely aren't without their issues either. Like in certain territorial waters strict rules are supposed to be in place with regards what one can do with the various byproducts leftover after water and fuel filtering. I don't know if it's strictly speaking legal to dump certain of those things in international waters or other places with less strict regulation, but let's just say I wouldn't be surprised if quite a few companies save some money doing it the easy or cheaper way. I'd definitely consider it to be a sector where improvements would be meaningful.

[@danielgn6227]

These documentaries are so well made and full of useful information, they put to shame almost anything you can find on TV.

[@adamkerman475]

I like how you can call it a documentary it’s just that good

[@0netom]

TV? What is that? :)

[@theEWDSDS]

True

[@williamcarney6561]

Ps zzz

[@subwax]

Completely agree - this is my go-to for info on space.

[@pyrusrex2882]

I don't know of anyone who puts their whole heart and soul into their videos like Tim does. That's what you call CONTENT.

[@jackspropulsionlab8653]

I might just make a list of people, but he works really hard on these for sure. You know, considering this video is an hour long. Why can't you be more like chris random, he is like two comments down.... ps. what is your stance on politics. :)

[@ymefg]

whats so funny tho? peace

[@EverydayAstronaut]

I should have pointed out the source that Starship Point to Point likely won't use a booster, here's the source for that! “Add 2 to 4 more Raptors for Starship point to point on Earth. You can go surprisingly far, even with low lift/drag. This was an unexpected result." - twitter.com/elonmusk/status/1134023034908446723?s=20 "Ah, so single-stage point-to-point? That sounds way better." "Yeah, *way* better. Dramatically improves cost, complexity & ease of operations. Distances of ~10,000 km with decent payload seem achievable at roughly Mach 20." - twitter.com/elonmusk/status/1134025184942313473?s=20

[@vambat1890]

Everyday Astronaut why does this comment have 1 like and no comments?

[@Gamer-rs6ti]

Well the dragon 2 capsule can actually handle 7 passengers, Ik it has four seats for ISS config but it can be configured for seven seats

[@N0Xa880iUL]

Um, I think we need another video on that.

[@RazzUK]

New video out today from SpaceX, using a booster

[@tomasgomez2624]

Of course there should feel use when the Starship

[@benni1951]

It's late in Europe so i'll watch the video tomorrow and I'm really looking forward to it!

[@linecraftman3907]

Muhaha I'll spoil it for you IN THE END HE TALKS ABOUT HIS MERCHANDISE STORE

[@lewismassie]

True, but I have nothing to do tomorrow so away I go

[@linecraftman3907]

@cake Someone has to be evil to keep the universe balanced

[@sheggle]

Bitch just watch til 2:00, bit of persistence mate

[@bruce206]

@@sheggle Actually 01:52 now and I just finished watching the video :D

[@KingArthurWs]

I love how long these videos are. Sometimes it is annoying, but it is great when I want to learn the content of an academic paper without having to dive through some high number of paragraphs, each containing words none of my family members nor me have ever seen in our lives. My mother is a lawyer, and even she has no idea what they are saying, despite knowing 90% of Latin roots and memorizing a large portion of the dictionary to heart.

[@hello12229]

8 minute intro

[@Tubluer]

Is it just me, or is everybody wandering around, unable to get that leafblower/F150 comparison out of their head? Anyhow, the obvious solution is a full flow staged combustion cycle leaf blower.

[@DunnickFayuro]

You'd then have to be careful not to launch yourself into orbit by accidentally hitting the throttle :)

[@deanmichalos6848]

I have always thought leafblowers were the most stupid, anti-environmental invention ever. Use a rake!! An LB has no advantage over a rake at all. It's not even faster or easier to use. You can't even gather the leaves together for composting with an LB! People typically just blow the leaves off their property and onto the road. Stupid.

[@Tubluer]

@@DunnickFayuro According to the back of this here envelope, you'd hit Mach 1 in 0.3 seconds. Now THAT is a leaf blower!

[@AaronSchwarz42]

@@deanmichalos6848 corded electric models not that wasteful, the idea is that your blow all the stuff into a pile, then use your rake & shovel to load the stuff into the yard waste bin // if you for example use a push reel mower (hand foot human power rotary blade) to cut grass & want to clean up the grass clippings, a rake does not really work very well, but an electric leaf blower in yard vac mode works great // after your blow all the grass into a pile to suck up //

[@swapshots4427]

@@deanmichalos6848 always felt same.

[@filipskotnica971]

*Thank you for bringing space down to me, Tim* - an everyday person

[@SapientPearwood]

This was so interesting! I have a phd in propulsion fluid dynamics, and actively work on rocket propulsion research, and a bunch of this was brand new information to me, and also so good to know about. It's one thing to say you care about the planet, but it's more important to make sure you don't have a blind spot to your own activities. Seriously great job!!

[@Arturo-lapaz]

design the expansion side of the nozzle using the axisymmetric method of characteristics, corrected by BL displacement thickness. ?

[@AndreasStr]

I paused this to go get some snacks only to realize I had been watching for 40 minutes already. Goes to show how interesting this video is :)

[@2001maurits]

Tim Dodd you did it again! A proper professional scientific study with a clear and nuanced explanation. I absolutely love these type of videos and I admire the effort you and your patrons put into making these videos. Keep up the great work! I'd love to support you on your next video's as soon as I have money to spare.

[@johndoepker7126]

@EverydayAstronaut this has to be one of the best vids I've watched to learn about rocketry and its environmental impact.

[@Jak_Extreme]

-"It will take a solar farm the size of 6 football fields!" -"So be it" I love this guy

[@dronillon2578]

6 football fields is not that much, only 345600 square feet. If we take 2 lbs per square foot of solar panel, it weighs 313.5 tonnes. That is 3 Starships to LEO, let's double that for Mars. That is considering the weight of solar pannels you put on your roof, I bet they can make them lighter if you do not mind paying extra.

[@Jak_Extreme]

@@dronillon2578 couldn't we use a more powerful energy source before solar? Like using a small reactor or something, then start sending solar panels?

[@dronillon2578]

@@Jak_Extreme Maybe we could, and if it was just about visiting Mars couple of times maybe we would. Heck, for that you could just ship the fuel from earth. But that is not Musks goal. His goal is permanent human presence on Mars, that is why his response is "so be it". Because in the grand scheme of things, couple hundreds square feet of solar panels is nothing. For this goal, solar panels are ideal. They are very simple, last decades, do not require much maintenance, except wiping the dust off (which can be dealt with, look at Mars rovers). When they break, they are easy to replace (keep in mind you have to do this wearing space suits). Their support structures and soon probably the panels themselves can be 3D printed. Once some infrastructure is in place, they are likely to be manufactured on Mars (maybe not all parts, but most of them). Similar process of manufacturing fuel can be used for Earth (where it has to be perfected before shipping to Mars anyway). Moon and larger stations in orbit of Earth will also benefit from this process of creating solar panels. And possibly lead to creating power satellites to beam down the power back to Earth. If a technology is multi purpose and can be used in multiple applications, then it is likely to advance more quickly (seems to be Musks way of doing things). That is at least my understanding of the issue.

[@Jak_Extreme]

@@dronillon2578 but if we send a reactor first then start sending solar panels,the reactor gives power to the methane producer and only that so that starships can return

[@dronillon2578]

@@Jak_Extreme Those 345600 square feet of solar panels whould produce around 5MW on Earth, and 2.5MW on Mars. Equaly powerfull Radioisotope thermoelectric generator using Plutonium-238 would require almost 5 tonnes of Plutonium-238. I have no idea if this is even possible to work at this scale. Granted, it would last almost a century, but I doubt anyone would be fine launching this ammount of radioactive material into space onboard a rocket, that can explode and scatter that into atmosphere.

[@colevanwyk3056]

As soon as I see the video in my notifications: YESSSSSSSSSSS

[@RarestAce]

That was my same reaction and I immediately started watching it!

[@colevanwyk3056]

@HO LAM YIU lol

[@thismonstrosity2137]

I'd like to say thank you for spending so much time just for us

[@ralfsz95]

How is this quality of content not getting more views? Awesome job, thank you for your work!

[@Misheva]

the effort behind each of these videos is mind boggling- you're doing an amazing job tim

[@ataphelicopter5734]

00:07 I didn’t know you could grow rockets

[@tomvarga5515]

Yeah, how do you think SpaceX are turning out so many Starship prototypes?

[@small_SHOT]

how do you get the seeds

[@isaquest134]

@@small_SHOT they are stored in the copvs and when rockets explode and die, they fire their copvs and make them go in every direction spreading seeds

[@user-ss6gp2gu6r]

@@small_SHOT in nasa’s secret vault

[@jellygiraffe5754]

yes you can grow rockets in your backyard using a hydrogen bottle and then just wait around 3 years and you have a rocket

[@d3fect521]

Quality over time indeed. You really did this good, Tom Didd

[@georgeweed]

this is funny

[@benjaminchristianhay]

This video flew by, am so grateful for all your effort and dedication. Thank you as well to you Patreons. Love your content Tim, keep on keeping on - I'm excited by the prospect of a potential future follow up about surface pollution and/or space pollution. YOU'RE THE BEST! :D

[@shannonparkhill5557]

Your deep dive videos are awesome, helping me get through another 2 months of lockdown here in Melbourne, Australia. Great music too. Cheers mate, loving it

[@paintballercali]

Thanks man my 11 year old son was just asking me about this a week ago and I was like I know a guy who is working on the answer I'll get back to you.

[@hypeninja4786]

*_And today on, Things That Totally Happened_*

[@THIS---GUY]

@@hypeninja4786 I started asking questions on space and creation at 10 some kids are really curious

[@patrickstephen8236]

I’ve been waiting so long for this! :D

[@seattledanr5363]

That was fascinating! An incredible amount of research. Thank you and your team for all that hard work!

[@MrXtacle]

Me: Oh wow, 56 minutes? This is going to take a while to get through. Me, 54 minutes later: Hol' up, that's it? It's already over?

[@Abel19129]

this... lol.. i thought that this is gonna be loooonnngg video (well,, it is), lets watch it for a few minute... and i suddenly realise,,, i watched the whole video xD

[@THIS---GUY]

Every single video lol captivating stuff!

[@1000dots]

That shot of reentry from the fairing's point of view blows me away every time. Looks like the stargate from 2001

[@daveincanada4794]

Your best ever Tim! You nailed some complex ideas like radiative forcing in completely understandable language. Not easy to do.

[@megamegamind6793]

Tim, you're an amazingly passionate guy, and that passion is contagious, and in the tough times we are living, it's great to have moments of relief such as watching your shows! Keep up the GREAT GREAT work, we all love it! 😊👍

[@ydresssmith459]

Hi Tim you have worked so hard on this video I literally stopped everything I was doing to watch it😀👍🚀

[@JayPatel-ug1nh]

Wow Tim! I really enjoyed the video! Thank you for the amount of time, money, effort and research you put into this. It's really an eye opener! You are an inspiration!

[@jakob_cubing]

idk when exactly I subscribed last year, but it feels like this video has been announced since I know this channel...

[@linecraftman3907]

Hahaahah

[@kylekingsberry5680]

It's been a long time in the making haha

[@rand314]

Hey Mr. Astronaut, I watched the whole thing. I spread it out over a week, and I enjoyed it very much. Thanks for all that research and giving us the actual numbers!

[@coreyrobinson9010]

Just wanted to shout out a thank you! Been watching this channel for a few years now. Its been so great to watch you explain these topics in a Saganesque manner. Thanks for giving us QUALITY content during this crazy time to be alive. See you on the moon ;)

[@lewismassie]

"Get your periodic tables ready" This chemistry student has been ready for years btw, polybutadiene acrylonitrile is pronounced poly-buta-di-ene acrilo-nitrile. The break is where the descriptive factors are 14:24 you nailed this one though

[@michaelgian2649]

@Lewis Massie: well done on the 11:30-ish pronunciations

[@Sal3600]

TTS can easily help with these. I'm sure he made use of that. I do it all the time.

[@angelosmavropulos9804]

Why is this channel soooo good at its job? Proper, in depth study from every point of view. Simple to grasp yet technical explanation. Non-biased points of view. Great video editing. Excellent public image and inspiring attitude.... aaand time stamps... something often neglected by other youtubers... is there anything missing here?

[@myggen2111]

1:14 why was that so satisfying?

[@Britishdumber]

I know right lol

[@jamesrwinters]

Me: *this 3 minute KZbin video is too long, click away* Also me: "Oh, Everyday Astronaut dropped another 55 minute video, let's watch that all the way thorugh in one sitting!"

[@Pslytely_Psycho_GreybeardGamer]

Followed by hitting 'replay' to make sure you didn't miss anything the first time around!

[@inabothwick6353]

ronn kelley haha

[@shoam2103]

Me: only videos

[@mdrocketry]

Tim: *posts pollution video *everyone liked that*

[@GermanYinzer]

Thank you so much for these videos! I basically binge-watched your videos the past couple of days and they re-ignited the fascination for space travel and rockets I had as a child. The quality of the videos is outstanding, they are like documentaries. Best online-class ever. Even though I should probably get back to studying for my exams now.

[@RarestAce]

This video was just great brother. Thank you for all the hard work that you've done on this one. Very much looking forward to your next one as well as your DM-2 coverage!!

[@jesusmora9379]

19:55 that footage of starhopper looks like an UFO, the birds just add to the effect.

[@liamwhite2700]

Thank you so much! This video and the article version were a huge help for one of my university essays!

[@FreeRadicalX]

My man Tim with the real talk about the externalized costs of manufacturing and complete supply chain ecological economics!

[@cantabrian1009]

Thank you Tim. It's hard to not feel a bit bleak at the moment - your enthusiasm always helps lift the mood.

[@cavallo696]

Great concept for making this topic understandable and absorbable - brilliantly executed

[@joelwill6021]

Yo, so glad you posted this today, I really needed it:)

[@Touay.]

If starlink can help people work from home, and therefore not have to drive o work, maybe those launches will reduce overall co2 output.

[@auzzaboz]

Epic video and so informative! Love how all the knock on effects and bigger picture points have been covered

[@chuckfirman3249]

Awesome job as usual, Tim! Going to be deep-diving into the research tomorrow but we just used your video on “Is Raptor king of the rocket engines?” today as our science class and we had to compare turbo chargers to turbo pumps, went over the 4 rocket engine cycles, etc. Have you ever considered doing a video on rocket engine gimbals?

[@chris-hayes]

21:00 I've never seen a sooty super heavy render, cool! It feels so much more tangible not looking impossibly pristine.

[@sherrysyed]

32:28 I’m so glad you’re about to get a lot of numbers out there and explain lots of quantitative facts as the last part of this hour long video on literal rocket fuel components and the chemistry underlying them

[@sherrysyed]

So that I get to know what is put in the air when a rocket launches. It’s very significant I know which is why this is how I will spend my 9 pm on a Sunday as an unemployed third world immigrant with an interest in only fashion.

[@sherrysyed]

Oh wonderful. A comparison of the stats of six different vehicles . Thrilling

[@sherrysyed]

Yes yes that is one way to use the word fun.

[@sherrysyed]

Re 32:50.

[@RRC6490]

Keeps politics out of videos? yep, you have my subscription. I'll even ring the bell

[@awhahoo]

Yep

[@pegleg2959]

Yep yep

[@jackspropulsionlab8653]

Okay.... What's your opinion on the vegans.

[@MattZaycYT]

Check @TheUrbanist his channel is about architecture, art, food and travel. He has the same policy.

[@FilipMacuka]

Pollution is politics.

[@hugowijk3676]

This is great, I'm writing a school paper on the sustainability of Starlink and this, with all it's wonderful sources, and new perspectives is an amazing help in tackling the ecological sustainability of Starlink. Did you find any relevant sources on the production of Falcon and Starship/Super Heavy? I understand that you didn't have time to include, or research, too much on that for the video, if you found anything though that would be a huge help! It's amazing to see the content that you can and get to produce these days, with you very own footage for all kinds of things, and such incredible research and detail on the subject. I'm loving these longer videos!

[@georgefan2977]

The insane amount of information is just facinating. Can't believe I actually sat here for an hour watching

[@DominikJaniec]

Eh, finally I've found time to watch this video. Great presentation! Thank you very much :)

[@shaexplr]

I am curious to look at the KZbin statistics for this video. Particularly the average watch time for this video.

[@mumblbeebee6546]

Ha! Yep, and how many commented before having watched a significant portion of the video :)

[@bigpapa3708]

Far too long I skipped 98% of it

[@Starkl3t]

As much as I’d love to watch the whole thing, there are countless other hour-long things I’d prefer to do instead.

[@baqcasanke]

Shabdhu 55:40

[@ВалентинРазумнов-ц4к]

Robert Kissler: People who used to swallow fast food in McDonald's can't appreciate delicious dishes in 5* restaurant.

[@masonrawson7576]

Thanks so much! I am an engineer at an aerospace company and Ive been looking for this exact information! This is the best content I have found thank you again!

[@zane422]

Tim this is an incredibly informative video. Thank you so much for the time and effort it took to make this. Understanding what it takes to make your videos and especially this one have given me a new appreciation for what you do. Count me in on Patreon!

[@Ryan-do3ro]

I’ve been waiting for this moment..!

[@modalmixture]

I've always wondered about this - thanks for such a detailed video! Must have taken months to research.

[@martinwessely3000]

OMG FINALLY I love these long documentaries.

[@filipskotnica971]

Please Tim, make a video about nuclear propulsion in rockets. That would be so awesome :) Also, amazing work on this mini-documentary, great job.

[@karbear7679]

My favorite thing about your videos is how you timestamp each topic. It makes it so easy to return or skip to a section you’d want to hear.

[@azerwhite8870]

EVERYDAY ASTRONAUT SAVES ME FROM MY SOCIAL ISOLATION🙏

[@The_Yeetmeister]

I've never been this early! Thank Tim!

[@zapfanzapfan]

The effects on weather of the current collapse in air travel will be interesting to study.

[@lengould9262]

The response rate of climate systems is likely too slow. The effects will be smoothed out over the next decade, making them barely measurable distinct from other effects.

[@jpatricklloyd7360]

Great work! I love the deep dives into the numbers. "I'm Johnny 5, need more input."

[@Agingisachoice]

nice and long format! i love it! i dont have to look for anything else to watch for long time! appreciate the research you put into it!

[@cybertronicghost4004]

2:50 Red 29:21 Green 32:03 Blue 51:16 Green 51:48 White

[@robossbomb0000]

Yes finely I waited for ever for this yay

[@aidanh.2677]

Tim: "you need 12500 rocket launches a day to match airliners" Me in ksp with 25000 launches a day O.o

[@zhurs-mom]

Kerbin is 10 times smaller than earth

[@Teddy-bg3bo]

@@zhurs-mom Its a game.......?

[@THEDARKILLERS46]

@@Teddy-bg3bo yeah, Kerbal Space Program, great game to wrap your head around rocket science.

[@xylisisvarlett3734]

My Kerbin doesnt have ice caps anymore

[@adamkerman475]

Rookie numbers

[@AndyOO6]

Congrats, you can now put your new computer together! lol :P lol

[@skelten454]

Yes!

[@AndyOO6]

:ppps: this is why I have an electric leaf blower lol.

[@madgaming3172]

@@AndyOO6 Tesla garden equipment? In cybertruck style? Would be cool :)

[@subwarpspeed]

I work in an office complex. When the left blower every few weeks start running I get "insane" because of the sound. I know there are battery electric ones and I wish they would switch to that. Now I'm wondering if it's a 2- or 4-stroke engine they use.

[@davidb1013]

Love the sly dig at chem trail theories 😂 Good job 👍

[@CallistoPili]

Fantastic explanation, I didn't realize the video was so long!! but it seems so well done and interesting that you don't notice the time spent to watch the video at all.

[@dxkaiyuan4177]

15:55 next thing you know Elon has a massive cow farm so their farts can fuel starship

[@even9374]

Mars has a 95% CO2 atmosphere, so shouldn't be necessary

[@racingtothelimits6702]

@@even9374 I think he means for Earth

[@scottorton482]

Well, Elon has now solved one of the Green New Deal's problems with eating and raising beef cattle,COW FARTS. Elon is going Green. Lol

[@RWBHere]

Of course! Take cows to Mars. Ummm....

[@jamesmihalcik1310]

@@RWBHere , The amount of byproducts that we get from cows makes that statement totally feasible :) From jello to rocket fuel. From feed grains to fertilizer, the perfect Martian companion animal. Now we need a marketing strategy for the chocolate martian milk :)

[@GwahirW]

Been looking forward to this! Time to settle in for Space!

[@DuesenbergJ]

This is one of your best work. Deserves more views.

[@mrsnow61]

Outstanding video.. especially the in-depth research, presented for everyday people.

[@clairehiggins7120]

I’m stuck home and this video is great timing, my daughter is having treatment for a tumour and my mother who is 72 is staying with us. I’m one week into self isolation along with my family and really loving it, I’m probably a little on the old side for Mars but if I can get Tim’s videos, Netflix and good books on mars I’m totally up for it 😀

[@AndrewBlucher]

Best wishes ...

[@dvoutsin]

I like this video alot and love space exploration. And so I wish that it continues and continues to improve on emissions/efficiency. Great job Tim on a difficult matter.

[@SpookyBoson]

Me: In quarantine for 4 weeks now. Also me: Watches Everyday Astronaut any time that I'm not doing online school or sleeping.

[@andylaweda]

This is the response I'm sure he's very grateful for. Source: I'm currently one of the editors of his website, and have been granted KZbin moderation access. So thanks!

[@SpookyBoson]

@@andylaweda OK thanks

[@julerohana1232]

The guy who disliked was loving the video so hard, they couldn’t tell that it was a dislike button

[@ryndrssn]

They love it so much, they thought spamming the like and dislike button would increase the amount of likes

[@angelalondon1098]

Tim, keep flying. You are a great commentator. Look forward to meeting you someday.

[@trentthomas7848]

I just saw your appearance with Third Row and wanted to make sure you knew that I watched you pollution video in it’s entirety when it came out, and found it very information and comforting to find out the rockets don’t cause much damage to our planet. Thank you for the informative and well made videos and please keep them coming. We love them very much.

[@Hugh-Jorgan]

@Trent Thomas No no. That's not what he said. He actually showed rockets pump out tons of pollution every single launch. More pollution in such a short period that nothing on this planet can compare to that. Nothing on this planet can pump as much pollution into the atmosphere at such a high rate as a solid fuel rocket. Hands down the hugest amount of pollution in the shortest time span, we're talking seconds. However when compared to what other industries, as a whole, produce in the course of a year, it looks much less offensive. Please don't misunderstand, solid fuel rockets are Champs of the polluters. So to compare rockets are like getting hit by mike tyson. Takes a split second and delivers a huge blow. An airplane is more like getting stung by a bee. Takes a split second also but it won't knock you out. Yet if your next to the hive it's buddies will overwhelm you rather quickly.