Hi Everybody, just noticed that around 10m28s into the video I say that Earth permanently eclipses the Sun at L2 point, keeping JWST in shadow. But that's not correct. Earth will eclipse the Sun at that location but not always where JWST meanders. (L2 is a big area in space.) JWST's built-in Sun shade is what will keep it shaded. Thanks to a bunch of folks in the comment thread for noticing that error. -Neil deGrasse Tyson.
Dr. Tyson... I emailed a question to the StarTalk email questionnaire and never got a reply. Just wondering, if I may ask your opinion on changing the units of time going forward in the future. I think my question was pertaining to a recent video you did on how time is relative and the response to Dr. James Gates video you did on "Proving Einstein right." Since planets can become distant planetary rock bodies, such as Pluto being recast from planet to rock body... can we change the unit of a "second" to the Banneker or give some extra homage to the unit measurement of time? Best Regards... -Siray
You were not incorrect Neil. You merely used a word that some people have yet to properly define is all. There remains a level of an eclipse of the sun by Earth at L2 where JWT is located. The center of the sun's disk always has Earth essentially directly in between it and JWT. And since we know that not every eclipse is total, a partial eclipse throughout the entire orbit is still a "permanent eclipse". Just not a full eclipse of which those who mentioned it were thinking. They were more incorrect than you were Neil. For they did not understand that not all eclipses are total eclipses.
But _why_ are L4 and L5 stable? Seems like the gravity from the two bodies (Earth & moon or whatever other pair) would be pulling things at those two spots inwards like a pair of elastic strings.
@@HopDavid I think Neil has no issues admitting any mistakes he's made. In fact he pinned his mistake and explained his mistake: Pinned by StarTalk Neil deGrasse Tyson 1 month ago (edited) Hi Everybody, just noticed that around 10m28s into the video I say that Earth permanently eclipses the Sun at L2 point, keeping JWST in shadow. But that's not correct. Earth will eclipse the Sun at that location but not always where JWST meanders. (L2 is a big area in space.) JWST's built-in Sun shade is what will keep it shaded. Thanks to a bunch of folks in the comment thread for noticing that error. -Neil deGrasse Tyson.
Chuck is such a good other guy to have on the show. He's capable of understanding a lot of the actual science, plus he's really funny with his improv. He doesn't fail to make Neil laugh.
I've seen Mr. Nice go from hardly understanding Dr. deGrass Tyson to keeping up even though he can still be impressed. I've been a fan for years. Comedy and intellect or not exclusive parts of our minds. They both have it all.
Chuck is on fire in this video. He makes such funny comments, he laughs until he cries. I love watching you guys. You two are so Awesome! You both put to such good use your teaching and comedy skills. Thank you!!! ;)
Hello dear Neil and chuck, as a french fan I gotta say, those impressions were… magnifique x) thanks for all the sweet science facts and the sweet jokes always a pleasure to learn something on this channel.
@@thebeast5215 This David is most probably a flat earther or creationist believer, just by looking at his words and his comments on other vids and channels that he's following.
@@waynewynnx7976 He is bar NONE, one of the most uneducated trolls the internet has ever known. You will never find anything factual with anything he says. And absolutely never will any level of education make it through his intentionally think skull which despises objective truth at all cost. He will almost never leave his own comment and will mostly only ever defecate upon other's comments which are based upon undeniable fact. He is a stalker in a sense. If you make the mistake of responding directly to him, he will locate ANY AND ALL of your social media activity in direct effort to attempt to insult and harass with nonsensical ramblings no one capable of critical thought can make sense of. To be honest, I believe that he believes ONLY in opposition, nothing else. He is convinced it grants him a personality. Matters not the topic, he only ever opposes without logical defense of his chosen opposition. He has called airplanes "non-existent". Claimed there is "no oxygen within Earth's atmosphere". And that lizard alien people have taken our brains, but never his. All because he came across a factual post or comment stating otherwise and no other reason whatsoever. It is STRONGLY advised to block him on every social media channel. Sure, it can be fun to poke holes in his nonsense. But that fun is quickly replaced with sheer annoyance, for he NEVER stops once he gets going. If you ignore one of his ridiculous responses, he merely continues tagging while offering increasingly more ignorant responses. And as with ALL internet trolls, he becomes entirely silent when face to face. He ONLY does this when he can falsely believe that his keyboard keeps him protected.
I'm surprised Neil didn't mention the most interesting fact about James Webb's position in L2, and that is it's not put exactly in L2 because it would be in permanent shadow (and it needs sunlight to operate its solar batteries), but that it actually rotates around that L2 point in small circles, so it can strategically catch the sunlight as well.
I am well pleased by these presentations. They are very informative in an entertaining manner. The fact that very complex ideas are presented in such a way, makes it easier for those of us involved in education.
@@HopDavid Good points, but you're being pretty nit-picky. At L1 the acceleration due to gravity is EXTREMELY low, as is the centrifugal acceleration. So, when you say the Earth's pull is much stronger than the moon's, that is technically correct, but both "pulls" are but the slightest of fractions that one feels near the surface of either body. It's a very, very weak game of tug o' war. As for the JWST's orbit around L2, you're spot on. Indeed, the diameter of the orbit is about the same distance as L2 is from Earth; a fact that I think is lost on most folks. NASA intentionally put the satellite into this L2 orbit to improve it's ability to image in all directions.
10:27 Neil is completely wrong on several things here: 1. At L2 the earth does NOT completely eclipse the Sun, the earth disk is smaller than that of the sun, also, the L2 point itself is not stable, it moves. 2. The James Web Telescope is NOT at L2, it orbits L2 as depicted in the diagram at 10:52, and the distance from L2 is so far away that it is NEVER in the shadow of earth, which means that the solar panel will always be able generate maximum power. Also, it doesn't need to be in the earth shade, because it has the 5 layers of sunshield to keep the temperature down on the side that has the dish and the instruments.
I think that his definition of L1 is also wrong. He says a 3:50 that L1 is where the gravity of Earth and Moon are equal (and in opposite direction so they cancel each others). This is an oversimplification because there is gravity at L1. It is defined as a point where Earth gravity is reduced by the Moon gravity thus allowing an orbit with the same period as the Moon orbit. For example, Earth-Moon L1 is at 85% of the Earth-Moon distance. The Moon gravity at L1 is 38% of Earth gravity and consequently the overall gravity is still 100-38 = 62% of Earth-only gravity (so not zero). If you plug 85% of the distance and 62% of the mass in the formula that gives the orbital period then they will cancel each others (e.g. 0.85^3 = 0.62) thus providing a orbit with the same period than the Moon.
He is also wrong when he says that the James Webb telescope was placed at L2 because at that location Earth permanently eclipses the Sun. That would only be true if JW was exactly at L2 but in fact it follows an orbit around L2 that is larger than the Earth-Moon orbit. I would not be surprised if JW was never going through the shadow of Earth. In fact, JW has solar panels so it probably requires sunlight to operate.
10:30 I think Dr. Tyson has misspoken here. The James Webb has a giant orbit around L2 that never takes it through Earth's shadow. So the spacecraft is actually permanently in sunlight.
Yes! The main benefit is that JWST does not have to shield its eyes from 3 heat sources (sun, moon, earth) in different parts of the sky. They are all hidden behind the one “visor”, the sun shield.
Please correct me if I nitpick incorrectly. My understanding is that the JWST is not at L2 but is instead orbiting it. And that orbit is large enough that JWST is actually outside Earths shadow. The reason for that orbit is so that its solar panels (on the hot side of the heat shield) get sun light in order to power the scopes instruments. Being at L2 (even just orbiting that point) is needed because that point is always outside of the Earths and Moons orbit, so JWST can always look outward, without being blinded by light from its two nearest objects.
@@Gregoriobaq I just made a similar comment. It could be that your comment was deleted by TH-cam, I've noticed that a comment is very likely to be deleted if you used copy/paste.
Fantastic tutorial! I am almost 70 (years not months). In the circa late 1970's I attended a few "L-5 Society" meetings at SUNY at Buffalo (Go Bulls.....we did not have a football team back then). I never fully understood the Lagrange points until now. You explained this really cool phenomenon wonderfully and with some good humor too, thank you.
Must have a nitpick with Neil saying that the JWST is at L2 and the Earth is blocking the sun's energy from the JWST. But the JWST is orbiting the L2 point and the Earth isn't blocking the sun's energy because the JWST has solar panels for it's electronics.
Lagrange points have come onto my radar a few times, but I haven't had time to get more into it than the surface. I appreciate you scratching the surface and shedding some light. It catalyzed a few ideas lirking in myind! 🤭😄💙
At first I was like ....i don't know how I feel about chuck....and the relationship between these two...but by the day he's growing on me and the chemistry is so on point....i mean...this is brilliant 😇😃
Thank you for this video. Not only was it really fun, but it also filled in the blanks in my understanding of Lagrange points. I’m absolutely fascinated with rocket science, but I don’t have a background in physics, so I can’t thank you enough for helping me to fully understand many concepts that I’ve struggled with. Neil and Chuck are hilarious as well!
Man f*** all that noise from earlier on in this series this show would be nothing without you thank you for still being here Chuck. you bring a liveliness to the show that Neil would never be able to. hes a great man hes smart and he can hold his own but this show wouldn't be nearly what it is without Chuck Nice. Makes it worth the startalk
This is really entertaining.. This show would be so awesome if there is animation provided. Because everyday people like me, need that to match the great explanation by Neil
Aside from the fact that Neil and Chuck are immeasurably entertaining (mad love guys!), this video turned out to be more useful than I expected. I'm the science freak amongst my friends and family. While I've long since understood the LaGrange points, it's sometimes been tricky to visualize certain concepts when they ask me to explain what they see on the news and stuff. Chuck's grasp of everything along the way just knocks it out the park. Y'all really make life easier for me on a regular basis. 😁💖
Two of the most brilliant minds in the world today, each in its own way, come together for this show. Sorry Netflix, HBO, Disney+... I'll be watching Star Talk! Magnifique!
Best ZZ Top voice! LA Grange (with a twist) "Rumors spread round, about this planet now. About space between the planets... You know what I'm talking about. Just let me know, If you wanna go, To that hole out in space, They gotta nice asteroids, A how how how." Love the explainer videos! 😆 sorry it's what I thought of when you was talking about Lagrange points!
@@HopDavidan object at Earth-Moon L1 feels the Earth's gravity, the Moon's gravity, AND a centrifugal force because the E-M L1 point is moving at the Moon's orbital velocity.
That was quite amazing. Caught me an oh wow fact again, as in "oh wow" I didn't know that until just now. So much we don't know and learn if we don't listen. Amazing!
James Webb orbit around L2 was explained in a previous Star Talk. I think its a little much to go into here and not necessary to understanding the topic but y'all is right!
You guys need a prime time TV show right now. I would put the money if I would just have it. No doubt about it. Thanks for all the science and the laughs. You are great.
@@StarTalk oooooo doctor, doctor! I just read a couple of articles that JWST orbits L2, instead of ‘sits at L2 permanently being eclipsed by the Sun’. Now I’m more intrigued as to ‘how’ the unstable legrangian points (1, 2, and 3) can have their own orbital paths? Much like the JWST has of L2? Or did I mess that question up?
Hey Neil and Chuck, Greetings From India. Isro's Aditya L1 Targeting L1 point. So i want to know about these points. very well explained man. Love From India.❤❤
I _knew_ of L-points but this was just a very brilliantly explained _explainer_ about L-points and I can not ever forget that now. Also Chuck was very much on point in this video, *loved* this video, thank you StarTalk for sharing. 😊
@@HopDavid it seems like you have more than lamens knowledge of the subject. For folks like me with primitive knowledge of this, it serves as a great starting point. Now I can see if I want to wade through the intricacies from here.
Thanks guys for explaining us what in the world is a Lagrangian point ! It makes total sense now ! Just, can someone explain the L4 and L5 points please ? I still don't understand them. See you soon guys, bye !
@Paul Ruiz - check the diagram at en.wikipedia.org/wiki/Lagrange_point#Stability_2 What ever is at L4 or L5 is a tertiary orbiting the primary-secondary system with centrifugal force balancing the combined gravity of the primary-secondary system.
This was very interesting and insightful though I would have liked a little bit about how you can use the Lagrange point between Mars and the Sun to create a magnetic field that can protect Mars against solar wind.
@@louisrobitaille5810 that’s true, i didnt formulate it very well. What I meant to say was the hypothesis about creating a magnetic field around mars to help it being terraformed, but it’s true sadly we don’t have the technology quite yet…
@@adrianwulff2608 We'll never have it... This will always be science fiction. The only way to create such a magnetic field would be to create a make a dynamo out of Mars' core. That's how all the massive magnetic fields in the universe work, e.g. the Earth's, the stars', and even dead stars remnants' like pulsars or more specifically magnetars. For funzies and reference, the Earth's magnetic field is measured in microteslas whereas an average magnetar is 10^15 teslas. A tesla is the unit of measurememt of the strength of a magnetic field. A microtesla is 10^-6 tesla.
What forces are helping to keep L4 and L5 stable if the object gets a nudge? When I think of something at L4 or L5 and if I accelerated towards the moon then it's movement towards the moon means that it has now broken the balance and is travelling towards the moon. I can see that it is now slightly nearer to the earth so the force of gravity from the earth is slightly stronger than the central fugal force pulling it away from the earth, but is this counted by the increase in speed travelling towards the moon? Is that what happens? Is the increase in speed travelling towards the moon and increase in force away from the Earth so that helps to keep it in a geostationary orbit with the Earth but then it's also travelling quicker towards the moon so what's pulling it away from that? I've only spent 2 minutes thinking about it but does it mean the object ends up closing to the moon?
Just so you know... I tried to purchase the Henson razor, using your link, and neither the code "STARTALK" or "startalk" work. A popup says they're not valid.
Hey Mike, for the code to work, unfortunately the 100 pack of blades has to be in your cart with the razor to apply the code. (We realize it's not really intuitive but it's a limitation with how our store handles discounts)
here's a question if virtual particles can pop into existence by splitting into a negative particle and a positive particle is there a possibility that like an atom there's also a neutral particle which can't be cancelled out by a negative particle so we could make a bag made of neutral particles split mass into existence and capturing the negative mass in that bag would that allow us to create mass out of nothing as long as the bag isn't damaged?
02:23 "uhh, so ... it turns out, after we understood what gravity is, and how it worked, primarily through the equations of Isaac Newton ... " Guess what actually causes gravity? Asymmetrical permeative particle fields!!! And just like how the particles we call photons push on a solar sail, asymmetrical permeative particle fields also can push on solid matter. An object creates its own gravitational field by absorbing particle momentum from the background permeative particle fields. The critical piece of logic and reasoning to understand is that an object absorbing particle momentum in this way is BY DEFINITION only reducing its own upward permeative particle fields, leaving its downward permeative particle fields stronger by whatever amount of permeative particle momentum was absorbed. Thus, the magnitude of the object's gravitational field is proportional to the amount of permeative particle momentum it absorbs, and since the amount of permeative particle momentum absorbed is directly proportional to its mass, we suddenly understand exactly why Newton's gravitational equations work the way they do. The stronger downward permeative particle fields around every solid object IS the object's gravitational field, because those particle fields push nearby matter TOWARD the absorbing object. The cause of gravity was literally guaranteed to be particle fields, because particle fields are the only physical element that continuously bridge any two celestial objects. The Law Of Physics is this: Continuous immersion in approximately isometric permeative particle fields automatically causes a gravitational effect. [12-13-2020]
Hi Everybody, just noticed that around 10m28s into the video I say that Earth permanently eclipses the Sun at L2 point, keeping JWST in shadow. But that's not correct. Earth will eclipse the Sun at that location but not always where JWST meanders. (L2 is a big area in space.) JWST's built-in Sun shade is what will keep it shaded. Thanks to a bunch of folks in the comment thread for noticing that error. -Neil deGrasse Tyson.
Dr. Tyson... I emailed a question to the StarTalk email questionnaire and never got a reply. Just wondering, if I may ask your opinion on changing the units of time going forward in the future. I think my question was pertaining to a recent video you did on how time is relative and the response to Dr. James Gates video you did on "Proving Einstein right." Since planets can become distant planetary rock bodies, such as Pluto being recast from planet to rock body... can we change the unit of a "second" to the Banneker or give some extra homage to the unit measurement of time? Best Regards...
-Siray
You were not incorrect Neil. You merely used a word that some people have yet to properly define is all.
There remains a level of an eclipse of the sun by Earth at L2 where JWT is located. The center of the sun's disk always has Earth essentially directly in between it and JWT.
And since we know that not every eclipse is total, a partial eclipse throughout the entire orbit is still a "permanent eclipse". Just not a full eclipse of which those who mentioned it were thinking.
They were more incorrect than you were Neil. For they did not understand that not all eclipses are total eclipses.
But _why_ are L4 and L5 stable? Seems like the gravity from the two bodies (Earth & moon or whatever other pair) would be pulling things at those two spots inwards like a pair of elastic strings.
@@HopDavid like what?
@@HopDavid I think Neil has no issues admitting any mistakes he's made. In fact he pinned his mistake and explained his mistake:
Pinned by StarTalk
Neil deGrasse Tyson
1 month ago (edited)
Hi Everybody, just noticed that around 10m28s into the video I say that Earth permanently eclipses the Sun at L2 point, keeping JWST in shadow. But that's not correct. Earth will eclipse the Sun at that location but not always where JWST meanders. (L2 is a big area in space.) JWST's built-in Sun shade is what will keep it shaded. Thanks to a bunch of folks in the comment thread for noticing that error. -Neil deGrasse Tyson.
Chuck is such a good other guy to have on the show. He's capable of understanding a lot of the actual science, plus he's really funny with his improv. He doesn't fail to make Neil laugh.
He's Watson, only funny.
CHUCK IS THE MAN. NOBODY PLAYS THE COMEDIC TIMER BETTER. CHUCK IS ALSO LEARNING WORKING ALONGSIDE DR. TYSON, HE'S VERY SMART, VERY.
When i look at the top & see all the succesful people.. there is NO mexicans 😩I review weed products on my TH-cam channel .. tryna make it out💯..
I've seen Mr. Nice go from hardly understanding Dr. deGrass Tyson to keeping up even though he can still be impressed. I've been a fan for years. Comedy and intellect or not exclusive parts of our minds. They both have it all.
And he's the only one who can interrupt Neil...
Chuck is on fire in this video. He makes such funny comments, he laughs until he cries. I love watching you guys. You two are so Awesome! You both put to such good use your teaching and comedy skills. Thank you!!! ;)
Same bro
The bromance
Hello dear Neil and chuck, as a french fan I gotta say, those impressions were… magnifique x) thanks for all the sweet science facts and the sweet jokes always a pleasure to learn something on this channel.
French fan approved! Thanks for the kind words, glad you enjoyed :)
@Hollister David could you elaborate on these so called false histories?
@@thebeast5215 This David is most probably a flat earther or creationist believer, just by looking at his words and his comments on other vids and channels that he's following.
@@waynewynnx7976
He is bar NONE, one of the most uneducated trolls the internet has ever known. You will never find anything factual with anything he says. And absolutely never will any level of education make it through his intentionally think skull which despises objective truth at all cost.
He will almost never leave his own comment and will mostly only ever defecate upon other's comments which are based upon undeniable fact.
He is a stalker in a sense. If you make the mistake of responding directly to him, he will locate ANY AND ALL of your social media activity in direct effort to attempt to insult and harass with nonsensical ramblings no one capable of critical thought can make sense of.
To be honest, I believe that he believes ONLY in opposition, nothing else. He is convinced it grants him a personality. Matters not the topic, he only ever opposes without logical defense of his chosen opposition.
He has called airplanes "non-existent". Claimed there is "no oxygen within Earth's atmosphere". And that lizard alien people have taken our brains, but never his.
All because he came across a factual post or comment stating otherwise and no other reason whatsoever.
It is STRONGLY advised to block him on every social media channel. Sure, it can be fun to poke holes in his nonsense. But that fun is quickly replaced with sheer annoyance, for he NEVER stops once he gets going.
If you ignore one of his ridiculous responses, he merely continues tagging while offering increasingly more ignorant responses.
And as with ALL internet trolls, he becomes entirely silent when face to face. He ONLY does this when he can falsely believe that his keyboard keeps him protected.
I'm surprised Neil didn't mention the most interesting fact about James Webb's position in L2, and that is it's not put exactly in L2 because it would be in permanent shadow (and it needs sunlight to operate its solar batteries), but that it actually rotates around that L2 point in small circles, so it can strategically catch the sunlight as well.
I am well pleased by these presentations. They are very informative in an entertaining manner. The fact that very complex ideas are presented in such a way, makes it easier for those of us involved in education.
@@HopDavid
I do not use the information, just the humour.
@@HopDavid Please explain. What information is incorrect?
We're glad you enjoy it! Cheers to you, fellow educator.
Agreed
@@HopDavid Good points, but you're being pretty nit-picky. At L1 the acceleration due to gravity is EXTREMELY low, as is the centrifugal acceleration. So, when you say the Earth's pull is much stronger than the moon's, that is technically correct, but both "pulls" are but the slightest of fractions that one feels near the surface of either body. It's a very, very weak game of tug o' war. As for the JWST's orbit around L2, you're spot on. Indeed, the diameter of the orbit is about the same distance as L2 is from Earth; a fact that I think is lost on most folks. NASA intentionally put the satellite into this L2 orbit to improve it's ability to image in all directions.
I love this show, it's the perfect blend of knowledge and humor! I love Neil's explanations and Chuck is just so fun 🤣
Ah yes finally- Space razors that's what I was looking for more then 20 years
Now my life is complete
Lol bro
it really is the best a man can get.
10:27 Neil is completely wrong on several things here:
1. At L2 the earth does NOT completely eclipse the Sun, the earth disk is smaller than that of the sun, also, the L2 point itself is not stable, it moves.
2. The James Web Telescope is NOT at L2, it orbits L2 as depicted in the diagram at 10:52, and the distance from L2 is so far away that it is NEVER in the shadow of earth, which means that the solar panel will always be able generate maximum power. Also, it doesn't need to be in the earth shade, because it has the 5 layers of sunshield to keep the temperature down on the side that has the dish and the instruments.
You are right Sir.
I think that his definition of L1 is also wrong. He says a 3:50 that L1 is where the gravity of Earth and Moon are equal (and in opposite direction so they cancel each others). This is an oversimplification because there is gravity at L1. It is defined as a point where Earth gravity is reduced by the Moon gravity thus allowing an orbit with the same period as the Moon orbit. For example, Earth-Moon L1 is at 85% of the Earth-Moon distance. The Moon gravity at L1 is 38% of Earth gravity and consequently the overall gravity is still 100-38 = 62% of Earth-only gravity (so not zero). If you plug 85% of the distance and 62% of the mass in the formula that gives the orbital period then they will cancel each others (e.g. 0.85^3 = 0.62) thus providing a orbit with the same period than the Moon.
He is also wrong when he says that the James Webb telescope was placed at L2 because at that location Earth permanently eclipses the Sun. That would only be true if JW was exactly at L2 but in fact it follows an orbit around L2 that is larger than the Earth-Moon orbit. I would not be surprised if JW was never going through the shadow of Earth. In fact, JW has solar panels so it probably requires sunlight to operate.
And Lagrange was italian, he was born in Turin
You're totally right of course, however I think that is the flavour of this channel. If you want something more substantial PBS Spacetime is the one
Do you think it's time to reinstate the L5 society?
Absolutely !!!
As long as it's not controlled by corporate interests...
Help heal the world first before leaving, please 🙏❤🌍🌌
Hahaha. I enjoy jumping up and down and burgers and milkshakes too much.
Only if I can join too!!!
10:30 I think Dr. Tyson has misspoken here. The James Webb has a giant orbit around L2 that never takes it through Earth's shadow. So the spacecraft is actually permanently in sunlight.
Yes Sir.
yeah otherwise there would be no reason for the solar panels or tennis court sized sun shield.
Thank you, I was looking for this comment
Came to the comments to say this, happy to see you’ve done my work for me. I expected better from you, Dr. Neil!
Yes! The main benefit is that JWST does not have to shield its eyes from 3 heat sources (sun, moon, earth) in different parts of the sky. They are all hidden behind the one “visor”, the sun shield.
This was brilliant, I always had a hard time understanding L2
I love Dr. Tyson's laugh, it's so fun and deep, and really conveys his genuine amusement, and pleasure. It's definitely infectious!
Please correct me if I nitpick incorrectly. My understanding is that the JWST is not at L2 but is instead orbiting it. And that orbit is large enough that JWST is actually outside Earths shadow. The reason for that orbit is so that its solar panels (on the hot side of the heat shield) get sun light in order to power the scopes instruments. Being at L2 (even just orbiting that point) is needed because that point is always outside of the Earths and Moons orbit, so JWST can always look outward, without being blinded by light from its two nearest objects.
Right, and my comment was deleted as soon as I pointed that out.
@@Gregoriobaq I just made a similar comment. It could be that your comment was deleted by TH-cam, I've noticed that a comment is very likely to be deleted if you used copy/paste.
That's right! That was a mistake. The spacecraft is actually permanently in sunlight!
@@Gerard1971 I stand corrected, it had link to a NASA blog talking about the solar array deployment.
@@HopDavid Yes, it had a link to a nasa blog talking about the solar array deployment.
Always a fantastic and hilarious way of learning things with these two. Love them both.
So glad you enjoy!
You guys are my sanity! Pure and simple. Thank you!
Fantastic tutorial! I am almost 70 (years not months). In the circa late 1970's I attended a few "L-5 Society" meetings at SUNY at Buffalo (Go Bulls.....we did not have a football team back then). I never fully understood the Lagrange points until now. You explained this really cool phenomenon wonderfully and with some good humor too, thank you.
Awesome Lord Chuck. A perfect reference to an '80s card game! And thank you for giving us an understandable explanation of the LaGrange points.
1:54 The first thing that popped in my mind is *"Have you ever heard of Among us Gregory?"*
*sorry, can't help it.*
Well, I'm French (living in Ireland) and I won't send you any hate mail, don't worry. Great video, as per usual. Keep them coming.
That moment when Chuck understands something and Neil is pleased
"lets think up a few things"
its the little phrases like these that might go unnoticed to a lot of people that i love so much neil
Great video guys! Can you do another video on how JWST is not stationery at L2 but is orbiting it? Thanks
They both smoked a big fat j before recording.
Must have a nitpick with Neil saying that the JWST is at L2 and the Earth is blocking the sun's energy from the JWST. But the JWST is orbiting the L2 point and the Earth isn't blocking the sun's energy because the JWST has solar panels for it's electronics.
Lagrange points have come onto my radar a few times, but I haven't had time to get more into it than the surface. I appreciate you scratching the surface and shedding some light. It catalyzed a few ideas lirking in myind! 🤭😄💙
At first I was like ....i don't know how I feel about chuck....and the relationship between these two...but by the day he's growing on me and the chemistry is so on point....i mean...this is brilliant 😇😃
I’ve been waiting for this explainer since the launch of James Webb! Definitely helps
This was one of the best videos! Interesting how those areas can trap asteroids and hold them there!
Lord Chuck is half of the reason I look forward to these video's.
Whats the other half?
I keep watching because this channel respects intellectualism enough to add the comma in the thumbnail title.
Chuck is the best co-host ever!
Thank you for this video. Not only was it really fun, but it also filled in the blanks in my understanding of Lagrange points. I’m absolutely fascinated with rocket science, but I don’t have a background in physics, so I can’t thank you enough for helping me to fully understand many concepts that I’ve struggled with. Neil and Chuck are hilarious as well!
2 minute add in beginning is disrespectful of everyone's time. Put it at the end. Dr Tyson is amazing
Man f*** all that noise from earlier on in this series this show would be nothing without you thank you for still being here Chuck. you bring a liveliness to the show that Neil would never be able to. hes a great man hes smart and he can hold his own but this show wouldn't be nearly what it is without Chuck Nice. Makes it worth the startalk
@@HopDavid fair point. Also why i have more respect for chuck. He knows where he stands on all this so he only goes for a reach when a joke is there
This is really entertaining..
This show would be so awesome if there is animation provided. Because everyday people like me, need that to match the great explanation by Neil
Aside from the fact that Neil and Chuck are immeasurably entertaining (mad love guys!), this video turned out to be more useful than I expected. I'm the science freak amongst my friends and family. While I've long since understood the LaGrange points, it's sometimes been tricky to visualize certain concepts when they ask me to explain what they see on the news and stuff. Chuck's grasp of everything along the way just knocks it out the park. Y'all really make life easier for me on a regular basis. 😁💖
when you laugh hard enough to bring tears... ALWAYS a great feeling!
Chuck, The only guy that can convince me to change to a new shaving blade.
I don't even skip the paid advertisements.. That's how much love I got for startalk
Two of the most brilliant minds in the world today, each in its own way, come together for this show. Sorry Netflix, HBO, Disney+... I'll be watching Star Talk! Magnifique!
Agreed. But don't forget that Chuck is the new host of Brain Games on Disney+!
@@StarTalk I had no idea I'll check it out thank you
Best ZZ Top voice! LA Grange (with a twist)
"Rumors spread round, about this planet now.
About space between the planets...
You know what I'm talking about.
Just let me know,
If you wanna go,
To that hole out in space,
They gotta nice asteroids,
A how how how."
Love the explainer videos!
😆 sorry it's what I thought of when you was talking about Lagrange points!
I've loved this channel for a long time now, and how it's so positive and has zero negativity.
So good to have you guys, you make my day + learning something very interesting and good, important!
@@HopDavidan object at Earth-Moon L1 feels the Earth's gravity, the Moon's gravity, AND a centrifugal force because the E-M L1 point is moving at the Moon's orbital velocity.
love your guys talks I love the different ideas of a lot of things
Like the little graphic of the Lagrange points the editor added in
Thank you for adding the Lagrange points image.
Just learned about the L points during the JW telescope and just can't get enough of em
My favorite STARTALK so far. Mr. Tyson, great explanation of the placement of the Web, and the humor👏🏾👏🏾👏🏾 Love you guys🚀🔭👩🏾🔬
That’s an easy fix, make your own video explaining it your way🤷🏾♀️
@@katrinamichelle8373 100%
Great stuff. Love having Chuck around. Can't wait until the next one.
That was quite amazing. Caught me an oh wow fact again, as in "oh wow" I didn't know that until just now. So much we don't know and learn if we don't listen. Amazing!
Such a good bunch of actors! Love it!
Been waiting for this topic since long. Finally!
James Webb orbit around L2 was explained in a previous Star Talk. I think its a little much to go into here and not necessary to understanding the topic but y'all is right!
Another GREAT SHOW.
You guys need a prime time TV show right now. I would put the money if I would just have it. No doubt about it.
Thanks for all the science and the laughs. You are great.
I’m so glad that there weren’t any illustrations in this video because you might’ve actually explained something !
I was just explaining these to people at our last star party! Wish this video could’ve come out sooner to show off! Always fun
Thank you. That made more sense than I've heard it before. And it's pretty amazing to boot!
Awesome to hear that! Glad you could enjoy it.
I didn’t realise how important these Lpoints were for our exploration of the solar system. Thanks very much!
Chuck you make this show great.. science is now educational and fun
I miss learning stuff. This is so good!
Learning is fun!
@@StarTalk oooooo doctor, doctor! I just read a couple of articles that JWST orbits L2, instead of ‘sits at L2 permanently being eclipsed by the Sun’.
Now I’m more intrigued as to ‘how’ the unstable legrangian points (1, 2, and 3) can have their own orbital paths? Much like the JWST has of L2?
Or did I mess that question up?
Amazingly interesting! Thank you!
Hey Neil and Chuck, Greetings From India. Isro's Aditya L1 Targeting L1 point. So i want to know about these points. very well explained man. Love From India.❤❤
I've figuered out details of Lagrage points. Thaks Neil and Chuck. :)
Beautiful Video!
Best Lagrange Points explanation ever.
@@HopDavid Well, he oversimplified it AF that might be way
@@HopDavid ook
Chuck should do commercials more often...
He's commercials are good
Chuck must be the only comedian who always crys and sheds tears for his own jokes.
I _knew_ of L-points but this was just a very brilliantly explained _explainer_ about L-points and I can not ever forget that now. Also Chuck was very much on point in this video, *loved* this video, thank you StarTalk for sharing. 😊
i ain’t buying hansen no time soon but thanks to chuck it’s on my radar
Best explanation all the way around. 🤙🏽🤙🏽😎
@@HopDavid such as?
@@HopDavid it seems like you have more than lamens knowledge of the subject. For folks like me with primitive knowledge of this, it serves as a great starting point. Now I can see if I want to wade through the intricacies from here.
The culinary analogy checks out. There are "Lagrange points" on the tongue in regards to taste sensitivity.
Oh man, I love Neil's laugh and Chuck's face when he is laughing :D
Thanks guys for explaining us what in the world is a Lagrangian point ! It makes total sense now !
Just, can someone explain the L4 and L5 points please ?
I still don't understand them.
See you soon guys, bye !
@Paul Ruiz - check the diagram at en.wikipedia.org/wiki/Lagrange_point#Stability_2
What ever is at L4 or L5 is a tertiary orbiting the primary-secondary system with centrifugal force balancing the combined gravity of the primary-secondary system.
Best 16 minutes of my life
seems like you two are having way too much fun....thank you
This video was magnifique!
Chuck’s funny comments in between makes learning fun…
chuck is on point today.😁👍
Didn't know that the James Webb scope was at the earth/sun L2. Absolutely brilliant. Thanks again, StarTalk, for making me just a little smarter. 😁❤️
@@HopDavid I was going to ask for a source, but looked it up myself, and it seems that the scope is not in Earth's shadow. Ty for the info.
Can you have an episode on what it means for humans to live in higher dimensions based on the String theory?
This was very interesting and insightful though I would have liked a little bit about how you can use the Lagrange point between Mars and the Sun to create a magnetic field that can protect Mars against solar wind.
That's... not possible. You can't just "create" magnetic fields to protect entire planets. That's just science-fiction.
@@louisrobitaille5810 that’s true, i didnt formulate it very well. What I meant to say was the hypothesis about creating a magnetic field around mars to help it being terraformed, but it’s true sadly we don’t have the technology quite yet…
@@adrianwulff2608 We'll never have it... This will always be science fiction. The only way to create such a magnetic field would be to create a make a dynamo out of Mars' core. That's how all the massive magnetic fields in the universe work, e.g. the Earth's, the stars', and even dead stars remnants' like pulsars or more specifically magnetars.
For funzies and reference, the Earth's magnetic field is measured in microteslas whereas an average magnetar is 10^15 teslas. A tesla is the unit of measurememt of the strength of a magnetic field. A microtesla is 10^-6 tesla.
Maybe my favorite TH-cam thumbnail of all time as an Amateur Astronomer.
What forces are helping to keep L4 and L5 stable if the object gets a nudge?
When I think of something at L4 or L5 and if I accelerated towards the moon then it's movement towards the moon means that it has now broken the balance and is travelling towards the moon. I can see that it is now slightly nearer to the earth so the force of gravity from the earth is slightly stronger than the central fugal force pulling it away from the earth, but is this counted by the increase in speed travelling towards the moon?
Is that what happens? Is the increase in speed travelling towards the moon and increase in force away from the Earth so that helps to keep it in a geostationary orbit with the Earth but then it's also travelling quicker towards the moon so what's pulling it away from that?
I've only spent 2 minutes thinking about it but does it mean the object ends up closing to the moon?
You are the best Neil you inspired me to go astronomy
Just so you know... I tried to purchase the Henson razor, using your link, and neither the code "STARTALK" or "startalk" work. A popup says they're not valid.
Hey Mike, for the code to work, unfortunately the 100 pack of blades has to be in your cart with the razor to apply the code. (We realize it's not really intuitive but it's a limitation with how our store handles discounts)
chuck is awesome and thats all there is to it..
Another year of Startalk and Chuck'll be ready for his PhD viva
perfect timing going to france friday.
here's a question
if virtual particles can pop into existence by splitting into a negative particle and a positive particle
is there a possibility that like an atom there's also a neutral particle which can't be cancelled out by a negative particle
so we could make a bag made of neutral particles split mass into existence and capturing the negative mass in that bag
would that allow us to create mass out of nothing as long as the bag isn't damaged?
15 seconds into the show you had me wanting to buy a new razor!
02:23 "uhh, so ... it turns out, after we understood what gravity is, and how it worked, primarily through the equations of Isaac Newton ... "
Guess what actually causes gravity? Asymmetrical permeative particle fields!!! And just like how the particles we call photons push on a solar sail, asymmetrical permeative particle fields also can push on solid matter.
An object creates its own gravitational field by absorbing particle momentum from the background permeative particle fields. The critical piece of logic and reasoning to understand is that an object absorbing particle momentum in this way is BY DEFINITION only reducing its own upward permeative particle fields, leaving its downward permeative particle fields stronger by whatever amount of permeative particle momentum was absorbed. Thus, the magnitude of the object's gravitational field is proportional to the amount of permeative particle momentum it absorbs, and since the amount of permeative particle momentum absorbed is directly proportional to its mass, we suddenly understand exactly why Newton's gravitational equations work the way they do.
The stronger downward permeative particle fields around every solid object IS the object's gravitational field, because those particle fields push nearby matter TOWARD the absorbing object.
The cause of gravity was literally guaranteed to be particle fields, because particle fields are the only physical element that continuously bridge any two celestial objects.
The Law Of Physics is this: Continuous immersion in approximately isometric permeative particle fields automatically causes a gravitational effect. [12-13-2020]
I am overloaded with Science in my brains. Damn, how many more things can I learn.
Great Show Fellas!
Now see, I thought I understood Lagrange points until Tyson started showing off. Thanks Neil for keeping me in check.
Great explanation Neil
Awesome episode. Question though... the JWST- correct me if I'm wrong but technically isn't it ORBITING L2 and is not static at L2?
Right, and it is actually outside of earth shadow . It has a solar array and an umbrella.
It is, but it will still need to be "nudged" from time to time because L2 is a static point, not a stable one.
@@HopDavid Apart from JWST-related stuff, can you name some stuff he got wrong?
A Lagrange Point is a location where you listen to ZZTop. L4 and L5 is where they keep rouge horses... because they're stable.
I love these guys! They smart crazy guys!
Merci pour cette émission ;)