Neil deGrasse Tyson Explains Why The Sky Is Blue

Have you ever wondered why the sky is blue? Neil deGrasse Tyson is here to help you answer that question alongside comic co-host Chuck Nice. And, you’re about to find out why the answer is easy to understand, but not that simple.
You’ll learn how the white light from the sun interacts with the atmosphere through a process called “Rayleigh scattering” that makes the sky blue. Neil tells us why the sky turns different shades as the day goes on, and why the sunset changes from blue to amber.
Discover why the reason we have a blue sky is the same reason you can’t see stars during the daytime. And, how this lead to the discovery of the operational definition of where the atmosphere ends and space begins. Neil explains why he thinks space should be defined by gravity and not by the circumstances of our atmosphere. Lastly, Neil gives us a lesson on the frailty of our atmosphere and our delicate place among the stars.
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About StarTalk:
Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up!
#StarTalk #NeildeGrasseTyson
0:00 - Introduction
1:13 - The Composition Of The Atmosphere
1:44 - The 7 Colors Of The Spectrum
3:52 - How The Atmosphere Creates A Blue Sky
4:35 - Rayleigh Scattering
5:30 - Why Sunsets Are Red
6:18 - Why Can’t We See Stars During The Daytime?
7:11 - Where Is The Edge Of The Atmosphere?
9:38 - Neil’s Operational Definition Of Space

[@Mtrix3345]

Neil actually cures my depression

[@izadave8991]

Yes, Same dude. He gives me hope that humanity will Not die out in the next hundret years or so. NDT 4 president

[@chiranthanmr]

Yeah, he's a source of light in this darkness.

[@ilmanti]

Chuck comes in with "We're all gonna die".

[@aziz7648]

same here

[@vikranttyagiRN]

He is phenomenal

[@EiRodri107]

They went from "why is the sky blue?" to "we're all going to die" 😂

[@matteofaccin6636]

Happens everytime when you ask a question to a real scientist

[@alexispapageorgiou72]

After party to accidentally stepping into a church.

[@deepakh.s6346]

That's the endgame

[@TheDarkLaw666]

Astrophysics in a nutshell

[@ferrdg6479]

@@matteofaccin6636 bienvenido a doc tops

[@florenceojowa7706]

He is such a great teacher. His students are lucky to have him teach them.

[@chf3127]

What a great video, and a great channel. Honestly I’ll never see the sky or the sunset quite the same way again. Thank you so much

[@YousufTauseef]

What are you talking about

[@WildlifeWarrior-cr1kk]

​@@YousufTauseefwhat are you talking about

[@user-dr9gs6wh1k]

*Chuck*: "Why is the sky blue?" *12 mins later* "We're all gonna die."

[@deerockatello]

Aight this cracked me up when they brought up the skin of an apple

[@bullseye6763]

12:25 just about right.

[@Chestnut-xm2pv]

🤣🤣🤣🤣🤣🤣

[@matthewburgess7112]

That cracks me up.

[@deniscall123]

i chocked on my coca cola

[@karwansalih7891]

I remember adults telling me because the oceans are blue and the light reflects 🤣🤣🤣

[@pjmogami3749]

Actually the oceans are black it's just a reflection of the sky that makes it seem blue

[@boudewijndalhuisen6169]

Pj Mogami does that mean that mirrors can be black?

[@gabor6259]

@@boudewijndalhuisen6169 Everything is black in the dark.

[@boudewijndalhuisen6169]

Gábor Králik But when light is reflected it isnt dark. The contrairy. Black is something that absorbes all light. White is something that reflects all the spectrum diffused.

[@RammerMartinezSanchez]

It's the opposite. It's clear and it's reflected by the sky.

[@ey5644]

This was so entertaining, educational, lighthearted, poking fun here, and there, and just a basket of joy. Thank you so much.

[@elainebmack]

I once attended a lecture by Neil deGrasse-Tyson at the University of Chicago. This guy is so down-to-earth, yet brilliant.

[@jeromelj1010]

I’d be a scientist if I had him as a teacher

[@mdecimal]

Jerome Jacobs yeah me too

[@bruhhhhh2768]

You wouldnt if you see the math involved in the stuff he speaks

[@neonowl777]

true he really makes it more interesting!!

[@goktimusprime]

Only that teachers (and people in general) haven't used inches and miles for over half a century! He had me totally lost until he said it was 1mm.

[@jeromelj1010]

Goktimus Prime luckily in South Africa we use kilometres. Miles and inches confuse me

[@mr.balawis9948]

Elementary schools should have passionate teachers like him. That is how we build foundations for learning.

[@-.-5107]

Starts spinning earths globe as the kids freak out about dying

[@nicksinclair1666]

Totally true

[@chrisborsberry6593]

I rly wish my middle school had a since teacher like this

[@Huncho_Pancho]

Mind ya business 😂😂🤦🏽 his teacher was black or Mexican

[@sandraloginovaite4012]

Unless America educational system is different than in Lithuania

[@YouTuber-mc2el]

Two things...first, I love how Neil can be so intelligent and in a blink can come down and enjoy humor that most of us share. Second, I had always thought that the sky was blue because sunlight was being reflected off our oceans into the atmosphere. Makes me start rethinking what else I have so drastically misunderstood.

[@KiraBKADestroyerOfWorlds]

So, when it's cloudy, and the ocean is gray, or it's night, and tge ocean looks black...what did you think was happening?

[@gabrielguidarelli7031]

I went to like this video once finished, but I already liked it probably 2 years ago! Great content! Also great to refresh simple but incredibly ignored concepts ! Thank you to both of you

[@Tsomy]

I love how their personalities complement each other perfectly😂😂

[@lancer717]

*Complement

[@victornaut]

@@lancer717 not so suave man

[@lancer717]

@@victornaut grammar 🤷🏻‍♂️

[@therealjake3288]

👀👀

[@iracknads]

Patronizing Luciferians who belly laugh at us "unwashed masses" every moment of every day as we believe their lies.

[@mcwix5429]

I love how turnt Neil gets when talking about the color blue

[@TheLucieFurr]

Them Blue Pills are Magical, Man

[@samlee7420]

If all my teachers in my lifetime was neil which is BTW a very popular jamaican name?... I honestly believe I would grow up to be a very successful investor. I lost the drive to be an inventor after 5th grade.

[@kersaherpafuqer784]

@@samlee7420 wait did you want to be an investor or inventer?

[@gumunduringigumundsson9344]

Deep blue is so awesome.. sometimes estatically and sometimes literally. Deep blue man.. awesome.

[@samlee7420]

@@kersaherpafuqer784 inventor, mistyped. I used to take apart all the toys and electronics in the house and put them together in different combinations. My 3rd grade science project was a wind powered table lamp. But failed the paperworks part of the project along with discouraging teachers that made you feel worthless. Neil needs to make a master class for current teachers.

[@TheGympert]

I remember my history teacher for ever. The only "teacher" I had during "middle school" (how we call it in the Netherlands) who could always keep the whole class curious every single time. He was a story teller and left it all to us what we thought of it. Bless him

[@hanamantmunnolli6381]

One of the finest explainatons of a "technical subject" in "non-technical language".

[@ryzenx1471]

I love how Neil can chuckle through the wise-cracks yet stay on topic AND not arrogantly sound like a know-it-all. The perfect balance for learning.

[@markthompson6123]

He's only a know-it-all when he's with other scientists. Lol. He schools them all

[@natemickens88]

Solid

[@frankdimeglio8216]

​@@markthompson6123 The ultimate mathematical unification (AND UNDERSTANDING) of physics/physical experience combines, BALANCES, AND includes opposites. The BALANCE of what is gravity WITH what is inertia/INERTIAL RESISTANCE requires and involves TIME AND time dilation ON/IN BALANCE, AS gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE); AS this CLEARLY explains the fourth dimension; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. INSTANTaneity is fundamental to what are TIME AND time dilation ON/IN BALANCE. Accordingly, ON BALANCE, INSTANTaneity is fundamental to what is the FULL and proper understanding of physics/physical experience; AS the extension of what is SPACE is CLEARLY (AND NECESSARILY) electromagnetic/gravitational ON/IN BALANCE. What is GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. What is E=MC is taken directly from F=ma, AS the rotation of WHAT IS THE MOON matches the revolution; AS the stars AND PLANETS are POINTS in the night sky. Great. INDEED, c squared CLEARLY AND NECESSARILY represents a dimension of SPACE ON BALANCE. ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE), AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. “Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/AS what is BALANCED electromagnetic/gravitational force/ENERGY, AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE (ON BALANCE). A given PLANET (including what is THE EARTH) sweeps out equal area in equal TIME. Great. What is E=MC is taken directly from F=ma. Consider TIME AND time dilation ON/IN BALANCE. INDEED, consider what is THE EYE ON BALANCE !!! Notice WHAT IS the fully illuminated AND setting/WHITE MOON ON BALANCE !!! NOW, consider what is the TRANSLUCENT AND BLUE sky ON BALANCE !!! So, consider what is the orange AND setting Sun ON BALANCE. ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE), AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. Inertia/INERTIAL RESISTANCE is proportional to (or BALANCED with/as) what is GRAVITATIONAL force/ENERGY, AS the extension of what is SPACE is CLEARLY (AND NECESSARILY) electromagnetic/gravitational ON/IN BALANCE. Consider TIME AND time dilation ON/IN BALANCE, AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. Gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE). GREAT !!!! BALANCE AND completeness go hand in hand. Carefully consider, ON BALANCE, why and how it is that there is something instead of nothing !!!! By Frank Martin DiMeglio

[@anthonybriones1117]

The reason he can do this,he says it over and over again it's memorized in every video down to the action of his hands ,this is a joke ,earth is / a PLAIN / HORIZONTAL/ LEVELED WITH MOUNTAINS, ECT.

[@RustInPeace2490]

@@anthonybriones1117 etc.*

[@karenmarsh1067]

If he is a kindergarten teacher the kids will leave with a PhD

[@maureenmiaullis6427]

I wish he'd do some episodes for elementary school kids. And not dumb it down for them.

[@jerryharrison870]

Are you kidding? Neil deGrasse Tyson's intellect is so dense, one could get a Ph.D by locking eyes with him!

[@Stark81766]

It's true.

[@enzoocampoiii2881]

He scares me when i was a kid because i look dumb compared to him so many sleep less nights thinking about him as a 5 yearold

[@vullmetal]

Enzo Ocampo III wow that’s harsh bro. I hope you’re better now

[@TopLevelJiuJitsu]

Such a wonderful show. Your energy together is so good!

[@maxfri6680]

Now this is what I call an efficient way of learning. It’s fun, engaging, easy to digest and informative. 👌🏻

[@JWhitePWC]

These two are honestly so cute together

[@giornogiovanna5539]

Yeah they seem like great freinds and they hang out off the podcast

[@gumunduringigumundsson9344]

The force is strong with them.

[@gj9157]

@Max Kellerman 🤯

[@jamarrobinson8241]

Jonathan White pause

[@titoarmstrong6507]

Max Kellerman maybe you can ride along too

[@03pontiac]

Man, this dude has such a freaking gift of gab. He eases us in to a complex idea, then blows our minds, then brings us back down to earth and calmly wraps up his lesson. He literally teaches astrophysics to the layman without the slightest condescending tone and totally gets off on sharing the knowledge he's labored so intensely to acquire. Just... I dunno... what a gift. What a guy!

[@trishbirchard1270]

Yes, I entirely agree !

[@03pontiac]

@@trishbirchard1270 You should listen to his podcast Star Talk

[@kevinblackburn3198]

Agreed 100%. I could sit in a room and listen to him all day. Wait I work from home so I already sit in a room and listen to him all day. 😀

[@jameswinchester9405]

You only think that’s Bc you are uneducated. He is not that funny.

[@03pontiac]

@@jameswinchester9405 yikes, have some coffee brother. No need to come in hot with insults, Haha. Neil is an incredible teacher, whether you choose to acknowledge it or not.

[@Nyinxie]

I am so glad they didn't cut out the comedy. It's priceless.

[@joshdobbin]

I absolutely ADORE how Chuck makes you *genuinely* laugh. There's such an easy, sweet friendship there.

[@fortunatejeremy]

I love how people often ask "why is the sky blue" in response to a question they don't know the answer to - as if it's some unanswerable question. Now when someone says that we can be like "Bam! Science!"

[@boy638]

why is water wet

[@vincevvn]

Never heard anyone ask that

[@dontbotherreading]

@@vincevvn Whenever someone asks a question I find to be ridiculous or obvious, I usually ask them why the sky is blue just to see their response.

[@anthonyweber4986]

@@boy638, water is not wet

[@jeffs6090]

@@anthonyweber4986 - correct! Water makes things wet because wet is the adjective used to describe an object with liquid on it.

[@gracejones-parker2348]

I literally asked my dad why the sky’s blue and he picked up my phone and put this on.

[@alphadragonn3685]

your dad is awesome lol

[@aawnwjua]

Best dad

[@victroiki7321]

Clever dad ...

[@gbadeoluwaadedigba8168]

Best dad in the world!

[@godspeed7717]

Foolish dad ever.

[@PuzzleKitten.0000]

Love Neal's passion for information and sharing it!!!

[@saptarshidey7672]

Just love the way Neil explains things, great video and awesome channel!!!

[@Ambrose2002]

"If we didn't need atmosphere I'd wanna get rid of it!" -Chuck Nice , 2020

[@mmbelle]

Throughout everything I've watched with Neil, every time Neil hits Chuck in the arm or anyone else, it means he's about to blow your mind with a scientific fact. It's like a 'shut up, immabout to educate you' hit. Not mad at it at all.

[@bobm4378]

:) hey stop me laughing, I wanna talk!!! :D :D :D

[@rolando2392]

My wife used to do that when we were dating lol ( the smack on the shoulder) untill it got annoying and i told her to stop hahaha I love my wife😗

[@WomenSense1]

I think Neil is just an affectionate person and shows it through touching.

[@alwaysrockn2009]

Neil rocks! I always enjoy and learn something new listening to him.

[@BJsThisThatAndTheOtherThing]

Very educational and entertaining. I thoroughly enjoyed it. Thank you!

[@DevilGeneImbued]

1:39 Particulates... Neil looks so proud

[@XTibbs1]

Ether📺

[@kxngdavid]

I can't wait for a kid to ask me why the sky is blue! I'mma be like: YES!!! I know the answer!

[@Maziedivision]

Me2

[@-Sober-]

KXNG DAVID yup. Ima be waiting for the day someone asks or says why the sky is blue

[@jarr5648]

Let’s here the answers why is the sky blue? And go!

[@TGrampage]

Lol, u ain’t explaining all this

[@tilenkobe]

and he'll be sorry for asking

[@joshshani2562]

I love how Neil can make the audience pay attention all the way

[@twatpopper72]

I could sit and listen to Neil for hours on end. I love science, particularly his field of science and, I wanted to study physics in college but I couldn’t do the math.

[@kitlangdon9796]

Thanks for this! I'm a science teacher and had the privilege of naming our first-born daughter, Rayleigh. She's heard me say several times that I'm reminded of her whenever I look up at our beautiful blue skies and our equally majestic sunrises and sunsets. She now has a much better understanding and appreciation for why that is.

[@danielpierce922]

That's a pretty name

[@wade1419]

You're welcome!

[@BluecollarJ]

I hated school growing up most of all I hated science but the way you teach is amazing I'm completely interested in all things space and stars. Keep it up.

[@upaymetv4978]

The way he explains this doesn’t make sense for the earth 🌎 to be blue from outer space. Water is clear, and most swimming pools are blue inside. The paint 🎨 color inside a pool, makes the water seem like it’s that color.

[@rianmacdonald9454]

me too - however, i only hated science at that point, because it could not answer the things i wanted in sufficient depth to fully grasp and understand the universe we live in - now however, i envy those going to school, as the amount of knowledge gathered since i was in school, is mind blogging. and in case i am 38, so was a long time ago. hence, science can now answer to the degree of understanding i want/need. Biggest issue i had in school, was the way it was taught, never taught to understand, just taught things to repeat, so i would sit there and say how is that, how does that happen, why does that happen, and as you can guess couldn't get an answer, so lost interest in it. And at risk of repeating, now they can fill in those blanks and explain things fully, like evolution, and my passion for learning is re-ignited.

[@SameLif3]

U PayMe TV black hole s are fake though. Just planets in the dark

[@jonathansolero7]

rian macdonald try Advaita

[@titoarmstrong6507]

Richard Ball because he was more interested in bullying you around and flushing your head down the toilet in the boys bathroom

[@Indyg0]

I love Neil so much. Troughout why whole childhood I've never had teacher with such a patience, passion and flow in explaining.

[@ciscoben6430]

What a wonderful way of teatching people . Many thanks from morocco

[@soapyseth]

7:30 I laughed so hard when Neil smacks Chuck twice then he stops talking after the second smack😂

[@dhumtana1247]

Even i was thinking that. He keeps hitting the guy. I was feeling them.

[@Boo13Hiss]

I still love the Dad joke with this one. :"Daddy why is the sky blue? Because if it was green you wouldn't know where to stop mowing. "

[@guld1999]

I will remember this and use it on my future kid

[@rockngelement]

Lol.

[@kyriekwsta770]

Mowing to the horizon? :P

[@yonisabrha8887]

Was the yard was uphill

[@kennyhalltotga2272]

The sky’s blue is the light bouncing off & through the earth. A beautiful glow.

[@davidwilkinson1480]

"If we didn't need atmosphere, I would want to get rid of it" These guys are the best!! Thanks.

[@arcaneiconoclast319]

Dude wore a body armor shirt sweatshirts and a jacket to repel Neil's bear hands from hitting him.

[@aniqshardin]

that's legendary gza

[@wasntme9153]

Yeah, wow. Didn't know Mr. Tyson was so loose with his hand, I know I would've had to ask him not to do that.

[@rtyuik7]

Neil's just knockin some sense into him: "you think Space begins based on where our atmosphere ends? get outta here!"

[@shavonne4831]

I really like his passion for the things he talks about.

[@rubinpg8468]

Awesome

[@plazmavortex9919]

Same! He is so cool😊

[@janrico904]

i just love these two . more GREAT INFO VID

[@anthonyfisher5189]

That’s impressive Neil, but can you explain why my dad hasn’t come back with his milk yet?

[@badhabit714]

Oh Shoot!😂 Maybe he s in the atmosphere.

[@dothestankyleg6089]

💀

[@ozskipper]

Because he is finding you a new, hotter and younger mummy..

[@pvvineet1722]

He never left... But the particles are preventing you from seeing him

[@jakeh4068]

"Daddy wasn't there, to take me to the fair."

[@ongeziwegodlwana7674]

Science has never been this fun. Wow! I wish I had such fun and great teachers during my school years. I flunked Physics/Science and literally had anxiety when I had class. I'm relearning everything anew. Thank you so much for this channel 🙏

[@christophercuston]

It really does come down to having fun. As a kids (9 years old and younger), school was fun. As I got older, it seemed like a job I wanted to quit from.

[@mjmeternal2696]

It is actually fun because we can relate easily to it. The problem is that we have teachers who spend quality time discussing unions issues and never teach learners properly.

[@BhuvaneshwariMurthi]

Why is the sky blue explained by a 6 year old with a DIY to demonstrate the same kzbin.info/www/bejne/bqGyiXptl7eaeM0 #ScienceWithSana

[@matiasmiranda446]

It's fun and if you like maths it's even funnier

[@ongeziwegodlwana7674]

@@christophercuston so true

[@madlatino4615]

you two are the best team to keep us resl with facts!! love your vibe!!!

[@Sodeggy]

This is the best explanation I've seen, where I actually understand and grasp it, rather than just repeating "because, because."

[@salvatorezagra864]

Truly smart because he understands complex things and can explain them in simple terms

[@davidsheckler4450]

He regurgitates whatever NASA pays him to

[@kyle-7107]

Diversity hire

[@Ofdensen]

@@davidsheckler4450 cringe

[@michaelwhite832]

Was anyone else told the “sky is blue because it’s reflecting off of the ocean”

[@marceldhaini3363]

its the other way!

[@jaykun182]

I was.... hahaha

[@TheX0000]

My teacher told me that

[@saffronezro4876]

Riiiiggt

[@zeezee796]

thats when you ask "then why is the ocean blue?"

[@achromatic0229]

I use to think it's the atmosphere reflecting blue wave length also with the atmosphere being water but neil explains everything

[@dannywaya7347]

What a great teaching moment.

[@Josh-kn5wn]

Take a shot every time Neil hits Chuck

[@desertflower3996]

🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃

[@goodcustomer4823]

@@desertflower3996 😂👏

[@kenrow3604]

I treid ti and onw I catn feel my faec

[@manictiger]

loook.... ervyone sais teh skiiie is belue, but... it is balck! Oh wiat. My eyes wer clsed. i am not as drunka tyou think i am!

[@speeddamon5609]

🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥃🥂

[@hustlehard4251]

Although I'm a scientifically literate person and happen to have already understood the answer to why the sky is blue, I still click on these videos with Neil because of his excellent use of words and clarity in explaining

[@mingosutu]

Very interesting stuff. Thanks a lot.

[@tvtime6558]

My child talks about science with the same amount of passion and wonder. ❤️

[@mikecar9899]

The way Neil is so vibrant and happy when he talks about atmospheric science is so awesome and wholesome

[@BhuvaneshwariMurthi]

Why is the sky blue explained by a 6 year old with a DIY to demonstrate the same kzbin.info/www/bejne/bqGyiXptl7eaeM0 #ScienceWithSana

[@Tanishq.A]

I wish this is what science class was in school.

[@kevingregory6436]

Sooooooooo true

[@thecomplimentking]

Brilliance unbound and legendary segment!

[@tanmaydeshpande7528]

Neil actually nailed it, those who must have ever thought about this pertinent question they all have the answer right here on social media and cheers to such channels who are acting as a knowledge distributors. Can't thank enough to Neil deGrasse , eminent (Astro Physicist) for enlightening us.

[@AldoConstenla]

Impressive how Neil can blow my mind with such a "simple" thing as why the sky is blue

[@rg7846]

i remember asking my teacher in elementary about that and all she said was its a reflection of the ocean. and i went with that through adulthood. public school system failed me.

[@jdnoflegend9719]

its the other way around. the ocean is blue because the sky is blue.

[@billytheog4792]

Deadass same

[@DarthMajora]

I feel like..it was the opposite but because you were a kid, it didnt make sense so you made up another answer that DID make sense to you lol.

[@apophisxo4480]

But why are glaciers blue?

[@zthecat]

@@jdnoflegend9719 That’s actually not why the ocean looks blue either... Water is just blue! It doesn’t reflect that much blue light, so that’s why you can’t tell when it’s in a cup, or in your bath tub. But you can tell when it’s deep in an ocean, or a lake 😁 It’s kind of like how he just assumed you couldn’t see the stars because the sun is bright. We would think that’s the answer, but it’s not!

[@BallsFireMotorcycle]

I'm a big fan of the great Neil 😀 super smart and good educator. Really easy to understand 👌

[@fsexpresscleaningservices5720]

Love that Neil's co-host totally gets him❤️

[@cmdrbnd007bond8]

I love how Neil answers the question and then starts going off on interesting tangents. You guys are great.

[@jonnlloyde]

"Why the sky is blue?" "We're all gonna die" 😂

[@rowdywolfy7831]

JONN LLOYDE lol😂😂😂

[@haciendohora2711]

that was a great conclusion xD

[@josephnyongesa193]

Just brilliant! Great job guys.

[@Synystr7]

That man is wearing: 1. A dress shirt 2. A sweater 3. A suit jacket The question of this episode should have been "Why arent you dying?"

[@faisalalha1786]

Are you a woman? Scientifically and curiously asking...as I am a man and unti l read your comment I had no idea what either of them wearing.

[@jjaammeess84]

It's a... Shirt and tie A possible hoodie?! And a Jacket! Looking at him..... there may even be a vest :P But the question is no less valid!

[@troyhunte2259]

Sooo???

[@barrybenkendorf672]

Dress shirt, hoodie (are you kidding me?!?), and suit jacket? What is wrong with this guy?!?

[@MaryAnnNytowl]

Likely the air conditioning is turned down to about 62°F, and if you're skinny, you feel the cold more intensely. That's my hypothesis, anyway. Since NDT is wearing a long sleeved shirt of some type under a short sleeved shirt, so he has at least 2 layers on, himself. Maybe a 3rd, if he has an undershirt on, too.

[@vinkuvinku]

I can attend his classes all day long 😀 he is my hero since my childhood

[@MURPHSLIFE]

The atmosphere apple skin length part at the end blew my mind

[@benouaafrika6609]

Many thanks. Asante sana.

[@rawtv520]

This quarantine has me deep into youtube deeper then ever

[@Cheffkid]

honestly this aint that deep

[@rawtv520]

M00N deep

[@gabor6259]

@@rawtv520 *than

[@rawtv520]

Gábor Králik no fella 😂

[@winning77th]

already went to the bottom and now working my way back up

[@WhoamI-tv7rx]

I love to listen Neil. He explains everything so well. He is a great teacher. 🙂

[@BhuvaneshwariMurthi]

Why is the sky blue explained by a 6 year old with a DIY to demonstrate the same kzbin.info/www/bejne/bqGyiXptl7eaeM0 #ScienceWithSana

[@dantejuantrelgeorge4126]

It was hard to make up that lie.

[@user-vm9hh2se7s]

@@dantejuantrelgeorge4126 hard to hide that fading hairline

[@Truthisstrangerthanfiction8]

Neil is a great liar 🤥. The sky is blue because it’s water. Next question.

[@NanocDark99]

@@Truthisstrangerthanfiction8you know that water is not blue right?? It seems blue for the exact same reason why the air seems blue.

[@bobszurek3247]

I would love to have a beer with Neil. I love how well he can explain his topics.

[@andrewemery7459]

Boy these two are funny and such a joy to listen to not to mention informative

[@JasonBryantGreen]

Can’t believe school taught me it was the reflection from the ocean.

[@claudylove3315]

Yes that was my original taught

[@magnetarstar9329]

In school they taught us the opposite actually... That is why the ocean is blue

[@picklefish74]

All teachers should be scientifically fluent, for that reason.

[@gagerutledge4620]

I was always told the opposite, the the ocean is blue because it's reflecting the blue sky. Which is why water, whether in a cup from your sink or a cup of ocean salt water, is not blue.

[@HayderAbdulridha]

The Albedo effect? Isn't that a little different from this.

[@mgcnashville6615]

Would love to see Neil debate a flat earther 😂

[@MaynardGKrebs-gv4vy]

Wouldn't be fair. A flat earther ALWAYS brings a knife to a gunfight.

[@chiodarelli]

me too! he would get destroyed

[@riasasselman4528]

@@chiodarelli The flat earther or Neil?

[@mgilbert9004]

@@riasasselman4528 the flat earther with evidence, neil for stooping to have that conversation.

[@carlmabiog]

@piet simons how can you explain that even the bible says that the heaven expands? Like our universe :)

[@user-rb8lt3sb8j]

you make learning so fun

[@DASDOS]

That's an informative video. Thanks Dr. Neil, I liked it so much!

[@Chestnut-xm2pv]

Neil: "White light comes down from the sun." *intense hand gestures casting a spell on the globe*

[@kevinfish4489]

I love listening to this man explain things. It's always from a point joy and amazement that he teaches. It's very refreshing to see someone who makes you wanna learn and genuine enjoys it.

[@mwituamweene9850]

Imagine learning physics/chemistry with these 2. So much fun.

[@RS-lq6zm]

“Daddy, why is the sky blue?” “Rayleigh scattering - look it up and explain it back to me”.

[@dalleyounes9066]

Why is everything racist to you..."cause I live in America" that makes a lot of sense these days

[@jimmyz7218]

It's that mentality that causes a lot of problems.

[@nathanmurray4185]

These days? When did it not?

[@jimmyz7218]

@@nathanmurray4185 When black people weren't constantly lied to and tricked.

[@AwibaeGibbon]

@@jimmyz7218 they werent lied to and tricked they were just simply *segregated and enslaved*........ i think the vast majority would rather be lied to, dawg

[@user-ol4rl9ex6j]

How does it make sense? The media is just brainwashing everyone and apparently you too that all white people are racist. If you actually believe that you must be a very ignorant individual

[@boredpete1825]

Neil De Grasse: Says science things Chuck: N I C E

[@samnnamani]

Blessed are the past, current and future students of Neil, for they are experience AWE like no other.

[@carolinevela6577]

wow, I didn’t think learning wouldn’t be so much when I started to watch this videos. They should use this channel to teach at schools.

[@wow_cultures]

1:38 GOOOOOLD GOOOLD GOLD 🔥⚡ 1:57 11:55 12:22 and OF COURSE 🔥🔥🔥

[@allsampleremixes3287]

11:59 think Neil is trying to tell Chuck that it’s time to take their conversation to the court! 🏀

[@e1123581321345589144]

lol, drop the last "the" and that sentence get a much darker meaning :))

[@Nobleman99]

Beautiful explanation.

[@onlythebestentertainment]

Dr Tyson your wealth of knowledge to me is amazing. I wish I young now and seeing your youtube channel . It would have drove me to be some kind of scientist. Thank you for inspiring teh millions of the planets youth. Be well Jim NYC

[@ToriYamazaki]

Three eighths of an inch. What I want to know is when is the USA going to start using metric?!

[@jefflane8272]

It is used in some areas. Neil doesn't like the metric system though.

[@JH-fk8ow]

@@jefflane8272 he does like it and he prefers the metric system.... im pretty sure 99.9999% of scientist do

[@picklefish74]

The answer is: NEVER

[@PafMedic]

randall davis ,and Thats Sad.When Its Used Everywhere Else

[@andychen5368]

used millimeters in the end anyways

[@jude_foster280]

I’ve definitely learned more from Neils books shows and podcasts than my actual science teachers .

[@wildlifewarrior2670]

I hope you know there are many different types of scientists right I doubt your teacher they planetary scientist

[@paternyao]

“The Operational Definition of the Edge of the Atmosphere.” I gave up from there 😂

[@shimronnetia]

his explaination is so well understood

[@Mixitrion]

"Why is everything racist with you?" "because I live in America" 😂😂😂

[@ChickenPermissionOG]

maybe because all he sees is race.

[@antoniorivolta]

Best Moment lol

[@CrippleX89]

@@ChickenPermissionOG Indy 500, F1 you name it. He sees all the races!

[@UrszulaWszebora]

The best “insult” ever: you’re such an astrophysicist 😂❤️