Is Lagrange L2 Point Getting Crowded?

[@SML783]

This is the beginning of a new Era in Space Exploration. Exciting times.

[@Cosmoknowledge]

Indeed.

[@JohnSmith-eo5sp]

I hope so

[@mvs9122]

I am so happy i am young enough to learn what JWST finds out

[@n1k32h]

I reckon this is fake cus you can’t pass the dome

[@paalmuru9598]

🙏🌎🌟🎉💐💐🎉🌟🌎🙏🎵🎆🐦💯 full enjoy the future okay thanks again by the by Paalmuruganantham India 🙏

[@josephpacchetti5997]

Thanks Russell, That was a great explanation of a Lagrange point, I don't like to admit it, but up until the launch of the JWST I did not know what a Lagrange point was, Thanks everyone for this excellent video, and I'll see you soon, keep looking up! 🇺🇸

[@Cosmoknowledge]

A day spent without learning something new, is a day wasted. Well, my friend, you just won the day. ❤😌

[@tsandiego6594]

"I don't like to admit it, but up until the launch of the JWST I did not know what a Lagrange point was" lol - nothing wrong in admitting things you dont know.

[@rogerthomas169]

Same here, Lagrange points are new to me and it's fascinating, I'm 70 years old and just got my first telescope...YIKES everything is new again

[@book3100]

I'm 56, started into amateur astronomy a few years ago, now I'm starting to learn physics. Why? People ask me that a lot. Because i want to know. The first step on that journey is the willingness to say " i don't know " Look up the story of Socrates going to the Oracle at Delphi. Oh, and have fun :)

[@jake_]

Currently, only Gaia , Spektr-RG and JWST are at L2. Plato is scheduled for 2026. WMAP, Planck and Herschel Space Observatory were moved from L2 at the end of their mission.

[@Cosmoknowledge]

❤

[@JohnSmith-eo5sp]

The gigantic LUVOIR is scheduled for the late 2030's?

[@ok-hl4zj]

@@JohnSmith-eo5sp probably yes.

[@lymancopps5957]

L2 will never become crowded. The orbit circumference is comparable to earth geostationary orbit, and its unstable requiring craft to have adequate station keeping fuel to stay in L2. As the fuel of these craft deplete, they will exit L2 and become heliocentric. So L2 will never become crowded.

[@Cosmoknowledge]

True. ✌

[@danasmith8950]

That was my first thought exactly.

[@dannyish2006]

What if the fuel could be refilled or replaced? Then it stay in L2 orbit as long as there is fuel.

[@OfentseMwaseFilms]

Thanks for the update

[@Cosmoknowledge]

Of course. Thanks for watching!

[@tridibroyarjo418]

You are such a great explainer, A Cosmoknowledge a day keeps the fear away

[@Cosmoknowledge]

So kind of you. Thank you!!!

[@tridibroyarjo418]

@@Cosmoknowledge Very welcome sir

[@matthewhyungjunahn]

I assume it also allows for very long image exposures because it won’t get occluded by the earth

[@ivanscissorhands2008]

Great video, thank you! I'm so excited to see what Webb will show us!! 💯👏🏽

[@Cosmoknowledge]

It's gonna be so interesting. Thank you for the great words!

[@dannyish2006]

An alien should photobomb the Webb telescope.

[@sbove]

Best explanation of the Lagrange points and why/how L2 is used by WMAP, Webb etc. Beautiful graphics!! Thanks a millionx!

[@Cosmoknowledge]

Oh, glad you like it. Thank you so much!

[@subhasisbhowmik7778]

Mathematician extraordinare. In fact most of the mathematicians of yesteryears were great scholars. Amaze to see a concept proposed 250 years ago is finding application now. Hats off 🙏🙏

[@Delta-1X-Ray]

A good question would be. What is the distance of the ORBITAL Radius in L2?. And which point does 5 probes are orbiting right now.

[@Emdee5632]

If I am not mistaken the average radius is about three quarters of 1 million km. It's not a perfect circle.

[@JohnSmith-eo5sp]

0:36 The trailing point behind the primary is also known as a TROJAN POINT. 2:11 That spacecraft looks right out of that TV show Space:1999

[@Cosmoknowledge]

😄😄

[@bestsources]

great illustration of L2 point. cool video. good work

[@Cosmoknowledge]

Glad you enjoyed it. Thank you so much!

[@attiliobastosguarnieri5416]

É um pouco difícil achar que cinco probes iriam "engarrafar" L2. Mas sempre rola esta dúvida. Obrigado por postar.

[@dranuradhagupta6748]

Ur work is really great, i must suggest everyone to get knowledge about the truth of solar system and universe 😊. Its fascinating. Good work. 👍

[@Cosmoknowledge]

Oh, that's very kind of you. Thank you! ✌

[@MusicEchos]

Thank you for telling us about it. The "live" sites show tiny tiny tiny pictures and titles. If I move them around and enlarge them I accidentally drag the video position gets picked up and loose my place on the video. Then a commercial comes on.

[@Cosmoknowledge]

Hahaha, I feel you 😄. Hey, glad you liked this. Thank you! ✌

[@HotelPapa100]

"1:59" Would plummet irreversibly towards sun or earth" This conjures up images of objects crashing into the sun or earth (may not have been meant that way, but it does). This is not what is happening. Lets say an object in L2 were not well controlled and lost its balance. It would slip out of the point either towards earth, or away from it. Once it has moved away from earth to be out of its closer gravitational influence, it finds itself on a trajectory parallel to earth's, slightly outside, and slightly too fast. Which means it enters a slightly elliptic orbit around the sun just outside of earth's. Similarly a straggler from L1, or L3 would enter an elliptic orbit inside of earth's.

[@felipaorfr]

Also, it is moving fast relative to the sun, it has a lot of angular velocity. It would never crash into the Sun directly. It is pretty difficult to launch something to crash into the Sun, it would take several gravity assists to lose angular velocity to crash into the Sun.

[@GururajBN]

Wow! You guys are so knowledgeable. Good clarification. 👌 Not so easy to escape from Mother Earth.

[@gmeast]

Joseph-Louis Lagrange ... amazing to have realized this without first having been in space.

[@Cosmoknowledge]

Indeed. What a mind.

[@joeyp6056]

Great video and very helpful!

[@Cosmoknowledge]

Thanks a lot. Great you like it. 😌❤

[@MrGaborseres]

Awesome explanation 👍👏👏👏👏👏❤️

[@Great_America]

Simple answer, no. There is a lot of area available within the L2 point. Illustrated orbits of existing satellites is deceiving as the sizes of the satellites are greatly exaggerated in most videos and reference material. This same rule also applies to the Geo (synchronous/stationary) orbital plane.

[@Cosmoknowledge]

True. ❤

[@garyz777]

Extremely interesting, thank you!

[@Cosmoknowledge]

Thanks a lot! ❤

[@garyz777]

@@Cosmoknowledge again you have my genuine thanks. I never understood L2 and Lagrange points before this video that was SO very well done. Many thanks!!

[@Cenotaur1]

What volume is a lagrange point? We talking about 100's km on each axis?

[@Syokool]

100 k to 200 k to be exact.

[@tinkmarshino]

L-3 is great.. I keep my expressive beer and comic book collection there.. Best hiding place ever.. my brother still hasn't found it yet!.. Dang I am just getting over a real nasty flu.. congestion like to make me cough my head off.. But I took precautions I taped my head down to my shoulders just in case.. I don't look so bad with a shaved head now... as long as no one see's me that is.. hope your year is off to a bang brother! Carry on!

[@mamatarout3278]

🤣🤣🤣

[@Cosmoknowledge]

Haha, I guess every human has the flu by now. I wish you recovery, Tink. Thanks for the kind words! Enjoy this new orbit around the Sun all over again. ❤

[@stephenbruner5820]

PLATO is set to launch in 2026. It's not there quite yet. I'm not very well studied in the subject so when one thing is off, it makes me wonder about the rest of the Video.

[@krkgiveaway]

Waiting for aliens 🥳

[@Cosmoknowledge]

😄

[@johndd9140]

Thanks for enlightening me! 👍

[@Cosmoknowledge]

Thanks for watching, man. ❤

[@2010sunshine]

Very informative.. thanks ,,👌👍

[@Cosmoknowledge]

Oh, glad to hear that. Thank you! ❤

[@ProOverthinkerr]

I read it "Webb is here where are you"

[@Cosmoknowledge]

😂

[@kylebecker9673]

Only had to wait four and a half minutes through a five minute video to get the answer to the question in the title.

[@Cosmoknowledge]

Well, you learned some new stuff along the way. Time well spent, I would say.

[@luudest]

4:07 What is the radius JWST and the other spacecrafts orbit around L2?

[@Cosmoknowledge]

It's the same as the distance from Earth to L2.

[@luudest]

@@Cosmoknowledge I meant the orbiting radius around L2. (not around the sun, which is of corse always constant)

[@Cosmoknowledge]

@@luudest Yes, the orbiting diameter of L2 is bigger than the distance from Earth to L2.

[@DJeimaXe]

*It should make James Webb a part time job "repeater" for other units.*

[@HartlandOrchard]

The orbit of Webb around L2 is larger than the moon's orbit around earth. You could fit thousands of things there without a problem

[@Cosmoknowledge]

So true.

[@KenPaulsenArchitect]

Why a "halo" orbit around L2? Why not a "stationary" orbit like the earth? To maintain a halo orbit, thrust must be required to change the direction up or down from the ecliptic plain.

[@romanbaumgaertner3230]

Please recognize The GAIA Probe is also placed at L2

[@Cosmoknowledge]

That's correct.

[@meditatingstuff]

Ok, the last part was a bit short on explanations. That's what I'm here for 🤷‍♂️

[@gregmonaghan]

0:33 "Liberation points" - LOL

[@Cosmoknowledge]

Libration. Sorry about our silly humane mistake.

[@juandominguez5885]

Thank you for this video

[@Cosmoknowledge]

Oh, thank you for the kind words! 😌

[@zone8848]

I like the voice behind this video

[@Cosmoknowledge]

So glad to hear that. ❤

[@Abhijitdas8710]

I have a confusion ..As the animations suggest, Are these satellites orbiting around L2 point keeping L2 at the centre of mass or is it orbiting with earth keeping barycenter at the centre or what??....And what causes this dip in the orbit??

[@Cosmoknowledge]

Webb is orbiting around the L2 point.

[@Abhijitdas8710]

@@Cosmoknowledge how is it orbiting a point... shouldn't it supposed to orbit with earth...??and what causes these dips in oribits??

[@akanshakukreti2570]

Love ur content!!

[@Cosmoknowledge]

Thank you!!! ❤

[@stuniversalsoldier]

Maybe I've missed it in the comments or the explanation or we don't understand gravity, but can someone answer the following: Is there no gravity at a Lagrange point or is there competing forces cancelling the effect of gravity? As an analogy, are you standing in the surf at a beach after a wave has crashed and is about to suck back out of are you on the beach, out is the water?

[@Cosmoknowledge]

There are competing gravitational forces at the Lagrange points that cancel out the need for the smaller object to move relative to the two larger bodies. It's not a zone of "no gravity," but rather a unique balance of gravitational and centrifugal forces.

[@stuniversalsoldier]

@@Cosmoknowledge thankyou

[@somegirl558]

I learned more during JW tracking and from talking around than troughout my whole life, school included.. I mean strictly space. :P

[@Cosmoknowledge]

That's awesome to hear. 😍

[@jimmyriddle4159]

“3D expanses that cover quite a large dynamic region.” ….. How large? “… won’t get too crowded until many more probes move to these areas”…. How many more probes?

[@Cosmoknowledge]

Webb's orbit around L2 is about the size of the moon's orbit around the Earth. So, there can be thousands of satellites orbiting there. And also dead satellites should diverge, avoiding any possibility of Kessler syndrome at L2.

[@dudicrous]

I would expect L2 to be different for every object with a different mass?

[@curious815]

Wow I suddenly feel so much educated about space 🚀😸

[@Cosmoknowledge]

Glad you learned something new.

[@MyRobert626]

“By the pricking of my thumbs something wicked this way comes” Elizabeth Holmes is the pricking of the thumbs so ware is the wicked? Lurking beyond this shadow ?

[@eduardokorganoff7512]

Es muy interesante ,pero qusiera que se agregaran subtitulos en español. Gracias y Saludos.

[@DaJuan681]

I would hope the conjoined space agencies would’ve thought of that before sending a $10 billion telescope out there

[@Cosmoknowledge]

Well, it's not crowded at all now, that's why they sent it. But by the time it gets crowded, we'll come up with a solution.

[@thedynamiteAttitude]

It's begging a new era of astronomical science 🔭

[@Cosmoknowledge]

😌❤

[@rflynn1974]

So the JWST will have to make adjustments so it doesnt fall into the sun?

[@Cosmoknowledge]

Yes, it will use its propellants. It has enough propellant to keep working for over 10 years.

[@marcwilliams9824]

Or possibly drift into the outer solar system. That legrange point is on a balance between gravity pulling things in and centrifugal "force" pulling it out.

[@ทักษินธุ์แก้มุงคุณ]

Wow Amazing successfully

[@Cosmoknowledge]

❤❤

[@whyjaywonders]

The video did not exactly answer the question it posed :) There is no way it can get crowded for millennia. The JWST oribit around L2 point is about of diameter about 1.3 million kilometers with a thickness of the orbit shell variation of about 200,000 km!! That is a huge, huge volume of space available for occupation and for rentals :) You can have millions of telescopes, satillites, O Neal cylinders etc.

[@Cosmoknowledge]

True. Plus, dead satellites will diverge.

[@iamvalenci4]

Bro Sincerely the video at the minute 0:18 from de NASA. Don't give you a strike? hahha

[@niketariq]

Where is the pictures of web?

[@Cosmoknowledge]

Coming soon.

[@BritishBeachcomber]

0:33 They are not "liberation points", but "libration points". Classic rookie error.

[@Cosmoknowledge]

How unprofessional of us. Sorry about that!

[@laniakea31]

Why is L2 point rotating and making circles around Earth-Sun axis?

[@Cosmoknowledge]

Well, you can't stay put in space.

[@Syokool]

It's not recommended to be in the exact point because it will not be able to get sunlight. From an engineering point of view, you won't be able to detect any problem related to the propulsion, and stability systems. Even though it seems a hassle, we expect there to exist problems during the missions, and fixes are to be made. If you don't get any data, you are incredibly lucky or the spacecraft is already doomed. You can also make corrections to the orbit, if you detect that, for some reason, the satellite is begging to fall to Earth's surface.

[@metatechnologist]

Nasa has "deorbited" another spacecraft at L2 and they'll probably do the same for JWST when it's mission is over.

[@Cosmoknowledge]

Yes, no danger.

[@jamiewatever]

Just reached a million kms now

[@Cosmoknowledge]

❤

[@hermes2050]

This is the marvel of history. To deepened our understanding about God magnificent and limitless and infinite power. The more we explore.. the more we discover the awesomeness of our creator God and his creation..

[@muhammadsafdar74313]

How big is the L2 point I mean area of L2

[@Cosmoknowledge]

About the size of the moon's orbit around Earth.

[@muhammadsafdar74313]

@@Cosmoknowledge wow so big,,,,,, I was worry about place left after JWT parking.

[@unclelar2731]

I wonder ... is there a chicken ranch at L2? 😳😎

[@Cosmoknowledge]

Oh, no. 😂

[@astrorakshith]

Let's wait till jwst will see anything But what if it parts or jwst will be pulled by sun to it

[@Cosmoknowledge]

That won't happen.

[@chrisbragdon5901]

Your thumb-nail picture is incorrect as it is showing L-2, not L2.

[@Syokool]

Not incorrect, it literally says "Webb here" which is true, it doesn't says "L2 is this". It's misleading tho.

[@chrisbragdon5901]

Well, it appears they fixed the thumb nail picture! It’s ok now! The original clearly showed the earth/moon L-2 zone that was incorrect labeled as L2.

[@stark20ful]

Pluto is a planet Face

[@Cosmoknowledge]

😄

[@sastrykganti681]

why can not some one simply say that L2 provides 24 hr dark sky to WEBB? DONT mean any offense

[@Cosmoknowledge]

No, Webb will not be in darkness at all. It will not be in L2, it will orbit around L2.

[@sastrykganti681]

@@Cosmoknowledge yeahhh, that is a detail, but does not take away the reasoning, the 3 deg dolid angle shade of earth will flare up a bit and will contribute to the functioning of Webb. Of course the dead line center behind the earth will be most ideal, and it should be mentioned, that it cant be there for MANY reasons, is a minor point

[@d.haroldangel241]

How con you "halo orbit" around a non existing object or mass? I

[@Cosmoknowledge]

Well, you see? Physics is amazing.

[@BrokenCurtain]

Webb's orbit around L2 will be larger than the Moon's orbit around Earth. So no, it's not getting crowded. Saved you five minutes, you're welcome.

[@Cosmoknowledge]

❤

[@Syokool]

I'm having Muv Luv Alternative headaches now.

[@Cosmoknowledge]

😄😄... Sorry about that.

[@davidvaughn7752]

Wow! Lagrange was a genious when you think about it! He had an insight from almost 200 years ago that comtemporary man (flat-earther Trump Humpers) can't even begin to, or hope to, understand. I hope Webb can play a major part in bringing mankind into a new Renaissance leaving the trappings of nations state/parochial beliefs in the dustbin of history. Ad Astra!

[@ritemolawbks8012]

His Action Principle and Theory of Mechanics make both _Newtonian_ and _Relativistic_ physics much simpler and "solvable," for mere mortals like myself.

[@davidvaughn7752]

@@ritemolawbks8012 Certianly extraordinary. Couldn't have said it better myself. Hopefully a new age awaits!

[@ritemolawbks8012]

@@davidvaughn7752L2 sounds like a pretty good spot to hide some secret tax-returns from the media and the U.S. House of Reps.

[@geraldleuven169]

Trump humpers ? You are probably one of those guys that think the Capitol occupation was an insurrection.

[@davidvaughn7752]

@@geraldleuven169 Yes, and Democracy survived, The Republic lives on. Science and rational thought will move forward. You lost.

[@adventuresoflife486]

JWST is an inspiration for all of us... Imagine the future- JWST has discovered the real birth of universe and its dimensions and we are able to do anything easily such as creating wormholes and travel easily, we can move with the speed of light easily... Our love and relations has converted to an another material... How beautiful is it! If I die I will want God to make me a part of space where there is only Happiness without any existence as I want to feel the infinity... 💜💜💜💜🙏🙏🙏🙏🙏 Who loves me??? 🥺

[@Cosmoknowledge]

You are loved. ❤😌

[@rabindrapalai9672]

Snake poision make it white.

[@hyperstarheroes551]

L2 point is best than other points

[@Cosmoknowledge]

❤

[@abooswalehmosafeer173]

Columbus found the americas

[@Cosmoknowledge]

No, he didn't. People were already there.

[@kamyjunior10]

🤩😍❤💛💙🧡 James Web

[@Cosmoknowledge]

😌❤

[@emmamorton3718]

worthworth realise realisisisise

[@rabindrapalai9672]

Blue colour Banega

[@josephjackson5330]

It's traveled all that way in all that time"it's moved just a pin prick in space ,I don't think there will be a great deal in what s found,just being 100 times better than other telescopes it will see more but nothing to exiting.other lifeforms can do the same distance in Less than 5 minutes.

[@Cosmoknowledge]

Let's wait and see.

[@josephjackson5330]

@@Cosmoknowledge yes I'm hopeful of something new to us ,I'm stil fasanated how pebbles have been avoided.

[@Sedna063]

You talk about the L2 point crowding problem only in your last 45 seconds. Please get to the point faster

[@Cosmoknowledge]

Sorry to disappoint you.

[@simonmultiverse6349]

0:32 "They are also known as LIBERATION POINTS" No they are not. It's pronounced LIB - RA - TION not LIBER - ATION

[@Cosmoknowledge]

That's true. Thank you!

[@simonmultiverse6349]

@@Cosmoknowledge Recently, I was looking up the mathematics of Lagrange points and I discovered that they're pseudo-stable, and there are some secondary effects which keep a body (telescope, etc.) in the same limited region. My overall impression of Lagrange points is that they are stable... ONLY JUST ... that is to say, a body remains stable only by the skin of its teeth... it's hanging on by its fingernails, so to speak... but it does, in the end, stay near the Lagrange point.

[@paalmuru9598]

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[@Cosmoknowledge]

✌

[@danilorainone406]

aww naww watchit webbers,my mother in law is out there batten down the webb covers,,,,,,,aww sheeit left them out in orbit back home,get ready

[@Cosmoknowledge]

Wow! 😄

[@amjrpain919]

It's safer there from all the junk floating in low orbit...just say'n...🧐👋

[@Cosmoknowledge]

True.

[@aviralmishra7104]

First 😃 ✌🏼

[@zinussan50]

Seriously, Its 2022, still bragging about this? Grow up

[@Cosmoknowledge]

❤😌

[@THIS---GUY]

@@zinussan50 waste of energy man lol like it or not first comment will always be apart of the internet.

[@zinussan50]

@@THIS---GUY 🤷

[@THIS---GUY]

@@zinussan50 ¯\_(ツ)_/¯

[@wrtitanati8781]

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