Why Doesn't SpaceX Recover the Second Stage

In this animation we look at why SpaceX doesn't recover and reuse the second stage!
SpaceX has made getting to space much more affordable through reusability of its first stage. Why don't they recover the whole rocket and make space that much more affordable?
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Time Stamps
Intro - 00:00
Falcon 9 Details - 00:44
Liftoff - 01:09
Rocket Engine Basics - 01:58
How Does the Rocket Get to Orbit - 06:48
Why a Second Stage is Used - 07:43
First stage landing on earth - 09:08
Review on Why Only the First Stage Is Recovered - 09:48
Note: The physics and numerical data throughout this animation is in no way faultless. Theories have been simplified for comprehensibility.

[@animationsxplaned8835]

Thank you everyone for engaging with this video through views, likes, suggestions and very kind words! I'm really glad to see many of you enjoying it!! Creating these animations alone from start to finish generates an array of challenges like balancing music/voice volumes, depth of details and number of topics covered. I appreciate the suggestions! Stay tuned as another animation is in coming together quiet well! As for the second stage, I believe they are left in their orbit to eventually fall back into the atmosphere where they burn up. Cheers!!

[@jackdoe43]

More videos please! Your explanations are concise and are easy to understand! Not to mention, your animations are spot on, clean and only provide the necessary info to explain a topic. GJ!

[@lordsamich755]

5:36 A better question is that given the drastic effect on their principal objective i.e. fully reusable rockets. Why aren't they using Aerospikes?

[@brandonphillips6342]

Okay but then what happens to the 2nd stage?? Sits in space ? Now you got space junk? would it not be advisable to rather let it burn up in earths atmosphere ?

[@trevormawulana980]

I love the video. Watching from Zimbabwe😊...with love

[@mateny.6770]

@@brandonphillips6342 It will burn in the atmosphere.

[@johnevans6399]

First time in 60+ years I've ever understood what is obvious, when explained so succinctly. Thanks 🤔

[@animationsxplaned8835]

Wow, very glad to hear that, you are very welcome Sir!!

[@harshvardhan4766]

@@animationsxplaned8835 is second stage space junk?

[@mihai.tesla88]

The same for me!✌ But is only one word you didnt use: garbage... spacial garbage around the orbit, right?

[@MK-xc7pl]

@@harshvardhan4766 Nope, after the second stage releases its payload it will be deorbited and will burn up in the Earths atmosphere

[@harshvardhan4766]

@@MK-xc7pl fine I new our engineers will do something

[@alyssapipe6840]

This channel is severely under appreciated.

[@animationsxplaned8835]

Thank you, seeing this channel grow at the pace it has for the past few days has been very rewarding!!

[@garyha2650]

@@animationsxplaned8835 Because for some people, like me, I can barely focus on what you're saying because the background music is so distracting. Try a test, dropping it entirely and re-upload

[@rc7314]

Would you say... it's "under expanded"? :D

[@garyha2650]

@JD Russell Wow I feverishly do hope that happens and I'm not kidding. --Fellow inventive mind, also cursed in that way, utterly underappreciated and sidelined.

[@AlienLogic775]

This is what KZbin should be! Beautiful talent, no clickbait, no ads. Bravo!

[@b.5728]

A haber

[@mm-hl7gh]

And most importantly, directly getting to the point. Not like talking for 10 minutes giving random background info while avoiding the topic of the video and finaly answering the question of the title in the last 30 seconds of a 11 minute video.

[@akselsamuelsen]

I almost never write comments, however, I really feel the need to tell you how much I appreciated watching this video. The animation, the content, the balance between details, and not making too long of a video, all perfect! I look forward to any future video from you.

[@DamBusters]

Same!

[@shreyashabhinav1979]

Relatable I think "Kurzgesagt"will be perfect for you

[@gregg8721]

My dad showed me this video, how does this not have more views?? This is not only an amazing explanation but also an amazing animation Edit: video blew up, comment is outdated, glad I helped push this out into the algorithm!

[@animationsxplaned8835]

Thank you and your dad so much!!! I’m glad you enjoyed it!

[@mitchellmaytorena1137]

That’s awesome man. You have a cool dad!

[@baharuddinbukari3088]

.. why the 2 thumb downs though .. hateful confused flattards?

[@AutarchKade]

I watched the whole video. The question in the title is answered in like 10 seconds at the end of a ten minute video. It's a lot to wait around through when you only want to know what the title is asking about. So maybe that's why it doesn't have more views, over 98% of the video is off the topic of the title

[@Mcdouble123]

I want ur dad pls

[@eugenesesmaiii3278]

I guarantee you this will be shown in many classrooms for YEARS to come! You should be proud of this! 👏

[@maxlab7707]

@Moon shiner This isn’t fake.

[@cosmostoad]

As a graduate student who spent a painful amount of time studying aerospace propulsion, I can say that your video is a great introduction material to space engineering. Good job!

[@crashfactory]

The orbital speed curve as it transitions from a ballistic curve to orbit was really nice. The engine efficiency curves were also, really well described and animated. Well done, and thanks!!

[@modinproductions]

I did not know the main differences between the atmosphere and vacuum merlin engines until now! Thank you!

[@HolySoliDeoGloria]

7:05 Not "lowering its heading," but rather, "pitching down" or "decreasing its flightpath angle relative to the horizon," etc. "Heading" is the direction it's pointed in the horizontal plane (e.g, north, southwest, 133 degrees true, 225 degrees magnetic, etc.).

[@animationsxplaned8835]

Thanks for the note! If you would like to give your opinion on future videos please join me on Kofi or patreon! Would love to hear your feedback in the future!

[@HolySoliDeoGloria]

​@@animationsxplaned8835 You're welcome. Excellent video. Great explanation about the nozzle efficiency and the various constraints related to the engine performance and design! Thumbs up!

[@bigpuff]

do you work at NASA or SpaceX?

[@HolySoliDeoGloria]

@@bigpuff No. Just a tech writer at a different aerospace manufacturer with a degree in aerospace engineering and an emphasis in astronautical engineering, plus a Navy pilot.

[@thomasrogen3739]

wow you must smoke a lot of weed too....lol

[@sidkshatriya]

I’ve watched so many explainers and animations over the years and this one is up there with the best. You have a talent that is world class. Thank you!

[@Lexamus]

I just found a GEM of a channel under 1K. You sir have earned my sub and i can't wait to see where you go. Keep it up. Amazing animations. High quality info. Freaking amazing!!!!

[@animationsxplaned8835]

Thanks for the very kind words and for the suggestions! If you would like to review future animation before they are released, please follow me for free on Ko-Fi where you can comment on ideas, and give me feedback! It would be much appreciated! ko-fi.com/xplanedanimations

[@nehorlavazapalka]

10:07 - not friction but compression, the air can't move sideways quickly enough, it gets compressed -> warmer

[@James42_]

Yes, it'll turned into plasma

[@FelanLP]

Funfact: the less aerodynamic your pod is, the better. It is pretty counter intuitive but you want to compress the air infront of you. If you do it right the air will form a manageable 300+°C warm cushion that keeps the melting hot air away from yours ships/pods surface.

[@colon-Thorn]

@@FelanLP and it will also slow the pod down which helps a lot

[@FelanLP]

@@colon-Thorn yes, yes. forgot to mention that because thats the main thing you want to do after entering the athmosphere; slowing down. this concave and totally-not-aerodynamic shape is ironicly just the most efficient on in that case.

[@zteaxon7787]

What if the second stage deployed a kind of wings which gradually allow reintroduction into the athmosphere over the course of let's say 2 earth rotations? That way the "trauma" of reintroduction can be limited? I don't believe the added weight offsets the needed capacity that much. It may well be worth it compared to sacrificing such a massive investment for every launch.

[@DiabloOutdoors]

Brilliant work! There's not even one flaw. Perfect script, prefect explanations that anyone can understand. Excellent narration, very good animations. Just perfect. You have a new subscriber here and thank you sir for your excellent work.

[@jeffbenton6183]

Great idea breaking this up into multiple parts, visible from the bar on the bottom! This way, people comfortable with rocket science basics and knowledgeable about how the first stage lands can skip to just the right part them, and those who need a refresher or who are learning about this subject for the first time can watch the whole thing.

[@animationsxplaned8835]

That’s the idea!!! Glad it worked!!

[@Tech_And_Biz]

Nicely animated, brilliantly narrated and explained. Your voice modulation and diction are great! Delightfully clear. The only sore point is the loudness of the background music in the initial sections in this video. Kudos.

[@fredsalter1915]

Agreed. Turn down the volume on the ambient background music. Otherwise, great vid!

[@animationsxplaned8835]

Thanks for the very kind words and for the suggestions! If you would like to review future animation before they are released, please follow me for free on Ko-Fi where you can comment on ideas, and give me feedback! It would be much appreciated! ko-fi.com/xplanedanimations

[@dmsaintrain]

This! You had me hooked at the "Xplane" to "Xplaned" segue! :-) And the engine data clinched it. But the music volume :-( Subscribed.

[@whit3rabbit13]

That was an exceptional explanation! I'm going to show this to my nephews in hopes they start following Spacex more closely.

[@alucidrust]

The quality and information in these videos is such high quality, subscribed, keep up the good work.

[@cameronschwarz3950]

This is seriously one of the best if not the best youtubers for these types of videos. Not only are the animations great but the facts and overall presentation is amazing.

[@beneluxia890]

So this guy's an animator, has an understandable voice and accent, does his own research, and explains things so detailed for us to understand? Wonderful channel, would like to see more of these soon.

[@yallowrosa]

he's difficult to understand for a non-native language he's too fast, over detailed ... I don't understand the final point why 2nd stage cannot be recovered

[@melhitchcock4051]

@@yallowrosa Hi yallow rosa. So did you miss the whole point about the second stage being at orbital velocity? It would not simply roll over and return basically to the launch point as does the first stage. It would need to be designed to withstand the very high heat of the supersonic re-entry and somehow "flown" back to a recovery point on earth. Also, the second stage motor would not be usable to perform the landing, as with the design of the first stage motor, as it is optimized for use the the vacuum of space, and would self destruct if operated in the lower atmosphere. Do you still not see why the second stage is not feaseable for recovery?

[@yallowrosa]

@@melhitchcock4051 - thank you, so SpaceX is a downgrade with respect to Shuttle program (which recovered all Stages) !?

[@Krenum100]

@@yallowrosa The space shuttle never recovered the large orange fuel tank, it stayed in orbit after separation and eventually burned up on entry.

[@Bruhza5870]

@@yallowrosa *OH HOHOHOHO* DON'T GO DOWN THAT ROUTE

[@pandabike3826]

This was perfect. The world needs more videos with this level of detail. Thank you for your time!

[@animationsxplaned8835]

Theres another animation heading to the finalizing stage!! Do you have any SpaceX ideas for future videos?

[@Kizu]

Your videos are awesome and the effort you put in to make each of them happen in the ways they did clearly show your commitment and passion. You've mastered the art of explaining and breaking down very scientific and technical terms and logic to layman. Please keep doing what you are doing because your channel has a huge educational value and undeniable potential to bring knowledge to the masses. Thank you for helping to bring difficult to access scientific topics and making them accessible to everyone. Your content deserves more recognition and even more subscriptions.

[@maximopl1892]

Beautiful man, great job with this video. It's amazing you did this all by yourself. Congrats for making such a great content, keep up with it!!! :)

[@joshgray1331]

BRILLIANT!!! Great explanation of the complex physics going on. That is very, very hard to do, but you have done a great job!

[@ruisora5574]

I only wanted to know why they don't recover the second stage but I learned more than that. Thank you for this video

[@jimratliff]

As an ex-physicist, I was gratifyingly stunned to learn aspects of rocket science I hadn't even appreciated existed. Very cool! That earned you my SUBSCRIBE.

[@irwfcm]

I learned more about launching rockets in these 10+ minutes than I've learned in other 50+ years of my life. Very good explanation and well presented.

[@michaelbaker4575]

I learned more from this video than I ever did in my science classes...

[@animationsxplaned8835]

Love it!!

[@casperguo7177]

to be fair tho, you cannot fully appreciate this video if your science class hasn't taught energy conservation, ideal gas law, and circular motion, just to name a few.

[@AerobaticsPilot]

😂. I bet you think we landed on the moon too. And ISS is real. It’s all lower orbit at best. The Red Bull skydiver was technically jumped from space. At 120k ft is lower orbit. Yet no spinning of earth. Took 4 hrs to get to altitude yet the earth stood still. Get this. Landed ahead of the spin. If you think we spin at 1000mph. Go to a carnival ride the attraction that SPINS. tell me if you can move away from the backrest. Remember the park that had the slides and the twirling circle. We get On it and spin it till it threw us off. That’s what would happen but that spins at 10mph It’s amazing people believe nasa lies

[@casperguo7177]

@@AerobaticsPilot ever heard of centripetal force = mass * (angular velocity)^2 * radius?

[@harshtokas123]

This video blew my mind. It has ingrained core concepts of astrophysics in my head in the most effortless way. Please keep up this content!!!!!

[@LukeTalbot]

I don’t know who you are, or where you live, but I found your KZbin channel, and you’re killing it.

[@alrightydave]

Very well explained video! The only thing I’d add would be that, re entering from orbital velocity is not 4 times hotter than coming in at 2km/s in the case of a Falcon 9 booster. Re entry heating goes up by the cube of velocity, so a second stage coming in from orbital velocity would experience 64 times as much heat as a sub orbital falcon 9 booster that is only traveling 25% of the second stage’s velocity. That’s a very important thing to consider.

[@thomasrogen3739]

DUH....

[@biggrizzlybear6774]

@@thomasrogen3739 Let's be nice, okay?

[@MrSTOCKBLOGGER]

i see several comments already pointing out how i feel about this. this all looks like very good work and sincerely i hope you dont stop making these because you arent getting a ton of views yet.

[@MsIs38]

Wow! It´s very difficult to explain such a difficult topic in a simple way, it´s wonderful. Congratulations, the animations and explanations are great. This video answered a lot of questions I had long time ago and I could not understand until now, as I didn´t find the proper explanation. Thanks a lot!

[@mehmatrix]

Brilliant explanation. Seems like you are putting a lot of effort into these videos. Much appreciated.

[@jaritikkanen3958]

It is amazing how low the pressure is in the nozzle. Also, the video explains very well the difference between the first and second-stage efficiency of each altitude or outer pressure. Summary to rocket factory: You cannot get all, have to be some compromise.

[@bunkie2100]

The thought that comes to mind is that with the second stage in orbit, there might be a recovery opportunity using a Starship to capture it in a payload bay and land it back on Earth.

[@johndone5906]

This would all come down to cost and complexity. At the moment there is not enough second stages to make this viable, soon this may change and presents Mr Musk with yet another business opportunity.

[@lil__boi3027]

Just add a little fuel and thrusters to deorbit it anyway so it wouldn't just be in LEO

[@MrLazze69]

If you send a Starship up to recover the second stage, then why not just use the Starship to launch the payload in the first place?!

[@ZeroSpawn]

Starship will make Falcon 9 obsolete

[@topnobau]

To Simplify; Part 1: Falcon1 - Launch a rocket, maybe recover it. Part 2: Falcon 9 - Recover the first stage, then faring, also bigger. Part 3: Starship - This is the next version of reusability, with the whole rocket being reusable/recoverable, also bigger again.

[@lilljav]

This might be the best rocket KZbin video ever! Great job 👏🏾

[@DamBusters]

I am a SpaceX enthusiast. This is the BEST animation, combined with a perfectly paced explanation of the complex 'basics' of rocketry. Thanks!

[@davidsspacecenter5038]

Your animations are great! Did you do these astounding animations by yourself?

[@animationsxplaned8835]

Yes! Research, writing the script, animating, voice over and review all done solely by myself!! Thanks for the very kind words!

[@Murphy252000]

Very good Job!

[@supergames2073]

@@animationsxplaned8835 wow

[@animationsxplaned8835]

Thank you!

[@briocherockets]

@@animationsxplaned8835 Incredible work, great video.

[@tars9668]

This channel is highly underrated. This video is awesome. The only thing that could be optimized is the sound quality. But thats not too bad. Thank you for this amazing animation.

[@jickhertz4124]

Great animation and explanation. I liked how you put the numbers in context! Loved the vid

[@flwi]

What a great explanation! I didn't really know about the details of the different engine designs. Well done!

[@Oxibase]

This channel will really grow if you continue to make content of this quality. Keep up the great work!

[@animationsxplaned8835]

Thanks, will do!

[@monsieurho]

Your channel has huge potential

[@animationsxplaned8835]

Thank you!!

[@EuroFighter59]

Awesome work, I subscribed immediately! Hope to see new videos about space 😍

[@tk2rushernoob919]

This video is amazing. Nicely explained, good pace, fitting animations. Thank you!

[@recifebra3]

This is one of the best, most educational videos ever!! Thank you so much!! This is so much appreciated for everyone a fan of SpaceX, Space or rockets!!

[@animationsxplaned8835]

I’m really glad you think so! Thanks for watching!! 🙏🏼

[@randomramjet782]

Nice video. Covered the topic well. Thanks. One small thing.... turn the background music down or ditch it in my opinion. Look forward to more.

[@rjswas]

why? it wasn't too loud or anything.

[@animationsxplaned8835]

Thanks for the very kind words and for the suggestions! If you would like to review future animation before they are released, please follow me for free on Ko-Fi where you can comment on ideas, and give me feedback! It would be much appreciated! ko-fi.com/xplanedanimations

[@prajitpaul3469]

Thanks for making us all understand Space a better way. Kudos to your simplicity

[@Erwiinstein]

Clicked through the video because of KZbin recommendation. You know, the animations are simple, but often, simple means very easy to understand. Learned a lot from this. Thank you.

[@Crazyclay78YT]

i already knew the answer, but the title and thumbnail caught my eye, good job man, keep this up

[@Boss_Tanaka]

Same for me

[@Gynra]

Well, it's not exactly rocket science.... oh wait...!

[@redactedredacted8434]

Thanks!! I finally found an answer to this question that makes sense. Everybody else gave vague answers or very technical ones.

[@animationsxplaned8835]

Love to hear this!

[@cdrbmw]

Awesome video. Great simple way of explaining this subject. I have subscribed 👍🏻

[@imamfauzi1101]

I know a little bit about atmospheric pressure and density that could burn the 2nd stage at that speed if it goes into re-entry, but I haven't know about that flow separation that could damage the nozzle, I hope that in the future spacex could find a way out to recover it's 2nd stage so that the space junk comes from every rocket launch from SpaceX could be minimized or even reduced to 0, which also could cuts the launch cost a little bit. Thanks for the explanation by the way, really understandable

[@kalanamihiranga544]

This channel going to to have 1 million subscribers soon

[@NitrooCS]

Only a matter of time before your channel blows up :) This video was awesome. Thanks!

[@JoeyBolohan]

What a great explanation of how it all works. Super simple to understand. Great work!

[@dgamezonu2693]

Great work. I just subscribed. Thank you for quality content.

[@briankachelman]

Yo, as a self proclaimed Space Geek, I really enjoyed how you simplified and explained the process involved with recovery of the booster. Great work!!! I found this video on the same day that SpaceX finally tested SN15 and sucessfully landed it!!! Def subbed. Can't wait to see what else you got!!

[@animationsxplaned8835]

Wow Brian, thank you so much!! Yes I watched it land as well through the everyday astronaut live feed! Great stuff!! If you would like to review future animation before they are released, please follow me for free on Ko-Fi where you can comment on ideas, and give me feedback! It would be much appreciated! ko-fi.com/xplanedanimations

[@briankachelman]

@@animationsxplaned8835 Right on. I was watching on Everyday Astronaut as well. Plus I watched the SpaceX feed also. I am checking out your link now!!!

[@briankachelman]

@Lies Exposed I assume you have physical proof to back up your claim? Or do you have a paper written about it and had it reviewed by peers? Or is you religion the only thing you have to make you feel safe in your little bubble?

[@briankachelman]

@@animationsxplaned8835 I am now following your page on Ko-Fi!

[@SorinSilaghi]

I like that you added all the numbers for the exhaust. Puts things into perspective. I also wonder why they don't build some kind of variable nozzle like jet engines have. No the entire thing, just something that attaches to the end of the existing nozzle on the sea level engine.

[@panda4247]

Like a skirt above the engine, that would be lowered to extend the small skirt? I suppose some practical aspects, like impossible (impractical) gimbaling, or the fact that they have 9 engines on the first stage, so doing 1 skirt to extend them all would probably produce some turbulences inside the skirt

[@Let-sGetWicked]

Thanks for your explanation, now I understand these procedures much better! Greets from Amsterdam

[@TheSpatulaCity]

Very good explanation and visuals! Although I previously understood the concepts, it was definitely nice to have a good visual reference.

[@unknowntim]

Underrated Channel! Awesome video.

[@James42_]

Super good quality video! Starship and starlink next? ;)

[@drew8256]

Best mix of animations and explaining a very complex subject.

[@AdvistaVideo]

Wow. Excellent production. Learned a lot. Thanks and keep up the good work.

[@francoisdupreez9754]

You don't mention anything about what happens to the second stage though? Does it stay stay in space or burn up when coming too close to the earth?

[@animationsxplaned8835]

Yes exactly, unlike the payloads, the second stages orbit is not maintained. After a period of time it enters the atmosphere and burns up from its extremely high velocity.

[@73henny]

@@animationsxplaned8835 Do you know how long it is in orbit before it burns up? And is there a possibility that it'd never re-enter the atmosphere?

[@abcdefgh-db1to]

@@73henny it depends on the mission, they are often deorbited straight away and come down fast or sometimes when there isn't enough fuel they are left to decay with their periapsis low enough so that they come down in a few months.

[@kukunishad]

@@animationsxplaned8835 does 2nd stage do deorbit burn to enter in atmosphere?

[@johnwolf2349]

@@kukunishad if they have enough fuel left they will intentionally deorbit over an ocean or the like I believe

[@fodiographer]

Starship will be the first fully reusable rocket in the world. No part will be wasted. I am so excited with the progress SpaceX is making!

[@simonedward6536]

That was a blooming brilliant video. Thank you for explaining it so well.

[@KenoBeatZ]

A brillant video ! I loved it from the begining to the end. Thanks for all those clear informations, you did a great job !!

[@chiefwatta8379]

Hey buddy don't you stop making these you'll make some cash soon enough you got this man's

[@Rodiboy60]

I love these animations keep it up you’ll be huge Edit: reminds me of Mustard and real engineering

[@animationsxplaned8835]

What a compliment! Thank you so much! If you would like to review future animation before they are released, please follow me for free on Ko-Fi where you can comment on ideas, and give me feedback! It would be much appreciated! ko-fi.com/xplanedanimations

[@EliasSchnetzer]

Amazing. Great animations and well researched information. Keep it on! :)

[@adrian.joker1338]

This was such an awesome and cler explanation, definitely sticking around for more!

[@Han_Solo6712]

I hope they launch recovery missions to prevent Kesler syndrome.

[@Sgt_Bill_T_Co]

As a retired engineer (Electronics) I found this fascinating, a huge thanks for putting this out!

[@MorganMadej]

Excellent choice of subject that will be appreciated by millions all over the World! Your presentation style and diagrams are so good that the background music is not necessary as your commentary makes it superfluous!

[@graemesandstrom5654]

Thank you that was very information and answered a lot of questions

[@zeg2651]

Actually: Friction isn't the main cause of heating during reentry. In fact, there is very low friction between the body that is entering the atmosphere, because there is a shock wave formed in front of the body which acts as a wall, seperating the body from the fast moving air. Between this wall and the body there is a pocket of air which moves hardly at all. The real cause for reentry heating is the compression of air in front of the body. The "wall" is a layer of strongly compressed air. The body gives it's energy into the system by compressing the air. So there is a shift from kinetic energy of the body to energy used for the compression which is then given of as heat (thermal energy) because the air doesn't want to be compressed (if you'd like to express it this way). The next time you see a mid to high quality mountainbike look for a sticker on the suspension that warns you from the cylinder getting hot during intensive use. Alternatively you could try using a pump to pump up something as fast as you can and then touch the cylinder afterwards -> You will realise that it becomes pretty warm. And if you could do that with your bare hands it's not hard to imagine what happens when an object going 27.000km/h hits the atmosphere

[@animationsxplaned8835]

Yes as I am aware of that, during production I decided to keep the animation at a specific level of complexity. During researching the topic, I found “Friction” commonly used to describe why objects heat up on re-entry. So I decided to leave it at that rather than going into the great explanation you just gave me!! If you wouldn’t mind, please join me on Ko-if or Patreon to join chat discussions and review pre leased content! Thanks for watching!

[@VinyJones2]

So what happe to the second stage engine ?

[@karimkerachni3939]

This channel is seriously underrated! Deserves way more followers!!

[@kspavankrishna]

Great video Thank you for making it 🙏🏽

[@elonchieftwatt]

This was a great animation. Now my lizard brain finally understands 😸. One question so what happens to the second stage ?is it still in orbit or does it get pushed out into space?

[@animationsxplaned8835]

Hey, thanks for engaging! Great question! They are left in orbit or they relight their engine, called a deorbit burn where they will re-enter the atmosphere and burn up. This is usually timed so any remaining debris that lands on earths surface, is in a designated exclusion zone in the ocean. Stay tuned for a potential video on this!

[@WHYNKO]

How about tempering and heat treatment of Iron and it's effects on the strength of a say blade?.... Along with explaining the different types of tempering techniques used throughout the ages (japanese Steel 👌)

[@animationsxplaned8835]

Love the ideas! I aim to create content that is very applicable to the every day person to increase engagement, but that’s a topic that would be extremely beneficial to have an explanation through 3D animation

[@marnev5245]

Awesome work! Liked & subscribed! Can‘t wait for more of this stuff!

[@bhaskars8552]

If they continue to post videos like this, this channel is gonna be a HIT, Already subscribed👍

[@weltgeschichtliche]

I don't comment on KZbin videos a lot, but when I do, it's because it's a great video. Well done.

[@julianjacobmusic]

Wow 7000 subs now... in two weeks ! 😮 It took me more than the last 2 years... to lose 100 subs 😂 I'm so happy for you. You deserved it. 😃 Keep it up 😊

[@wackySoftware]

Just great and awesome without any other words. You explained the rocket engines in a nutshell. Great Animation and explanation. :-)

[@arystotalloss]

Nice work, thank you! Looking forward for the next one. Stay healthy 😉

[@animationsxplaned8835]

Thank you very much!

[@wagondragon]

8:03 Can someone perhaps explain this? After MECO, how does the 1st and 2nd stage separate, since they are both going as a unit at the same speed? How does, or what enables the 2nd stage "push" away from the 1st stage? Thanks!

[@the65thpotatooverlord15]

IIRC, the decoupler pushes the second stage away. Since the second stage is lighter, the energy from the separation slows down the first stage by a little and pushes the second stage away.

[@morningstarkid07]

There is a big piston on the top of the first stage that goes up into the 2nd stage engine. when it's time to separate they use compressed air to extend the piston and push the 2nd stage away. Here is what the piston looks like: kzbin.info/www/bejne/iHPbnIWBj5hnr9E This view is from the top of the 1st stage looking up into the 2nd stage engine bell. It's hard to see the actual piston extend because it doesn't really move that far. It just needs to give a quick solid push and inertia does the rest.

[@morningstarkid07]

It's not really a decoupler. It's actually a big piston that's mounted on top of the first stage and reaches up into the 2nd stage engine bell. You can see it in their live broadcasts. Heres the view from the most recent starlink mission: kzbin.info/www/bejne/iHPbnIWBj5hnr9E

[@the65thpotatooverlord15]

@@morningstarkid07 TIL that pistons are used to separate the second stage.

[@PS-Straya_M8]

Great video! On the About section of your channel tell us a little about yourself, do you have a science or aeronautical background?

[@animationsxplaned8835]

Thank you! Great idea! It’s updated!

[@craigj6277]

Excellent job on your explanation and graphics. Thanks

[@adrianpreoteasa3880]

Thank you so much for this grate clip! Hope your planing more quality content like this one.

[@liamrobins8789]

I think 3Elon has said that it is cheaper to manufacture a 2nd stage than to get a recovery vessel to pick it up

[@julian5857]

If it fully burns up then it's fine because we gotta be careful with all the space debris...

[@aryjun-845]

Im your 300th subscriber...... I'm sure that you hit 300k subscriber soon....😀

[@lizrichardson6914]

almost at 700!

[@MrHertsenberg]

1,06k now, + 1 :D

[@mohitmishramoit95]

Amazing work, Thanks for sharing

[@germancrisci]

This video is very concise and very well animated. Congrats on a good job

[@gabreiellawissell7310]

you still do not answer the question where do 2nd stage go once separation from payload

[@Mellowyellow8888]

space junk

[@generalcodsworth4417]

They have it reenter the atmosphere where it burns up in a safe place. This is standard practice in the space industry unless you're China, in which case you just let it go wherever it wants and everyone else can hope it doesn't land on them

[@glenchristensen3689]

@@generalcodsworth4417 Now thats a good and true answer