The Timeline of the Universe | Neil deGrasse Tyson Explains...

How far back in time can the JWST see? On this explainer, Neil deGrasse Tyson, Chuck Nice, and Gary O’Reilly break down the timeline of the universe, looking at when the solar system started, when life began, and other highlights.
We dive into the gridiron timeline of the universe. If the timeline of the universe we mapped out on a football field, where would human civilization be? We go through all the landmark points on the gridiron timeline: When our solar system was born, when life started on Earth, when humans arrived, and how far back the James Webb Space Telescope will let us see. Was the universe just right for life?
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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
1:06 - Age of the Universe
2:01 - Timescales
5:04 - Age of the Universe in Yards
6:07 - Solar System
7:05 - What JWST Is Observing
7:58 - Life
8:49 - Cave Dwellers
9:32 - Development of Agriculture
9:50 - Religious Figures
10:32 - Advancement of Civilization
12:25 - Cosmic Perspectives
13:06 - Cosmos
14:21 - How JWST Will Change Our Notion Of Time
16:00 - Predicting the Future
17:40 - Closing Notes

[@StarTalk]

Would you rather look into the past or the future?

[@pranavnath8732]

Only by looking into the past can we understand the present. I'd appreciate the present in its entirety before trying to look or extrapolate the future

[@errolwilcox747]

I'd rather know how we got here, than where we're going.

[@TheDunlopdude]

If we look into the future, we can understand what the past caused, and make the present our future.

[@Boballoo]

@@pranavnath8732 "the present in its entirety" Cool, but I think the present is gone already. Ooops! There it goes again.

[@breezy8105]

Past FOR SURE. Who wouldn't want to see The Library of Alexandria? Or the Roman empire? DINOSAURS AND NEANDERTHALS?!

[@studiocordesvocalles]

Let's all take a moment to cherish the fact that Neil deGrasse Tyson popped into existance in our universe

[@jezlawrence720]

That we live *right* at the point where the moon & sun are the same relative size in our skies, allowing us perfect lunar and solar eclipses, is not as miraculous as us all happening to cross world lines at the same time as N dG T. :D

[@brianstrutter1501]

@@jezlawrence720 - not perfect eclipses

[@Belphegor-jq4uf]

Nigel deCrass Byron isn’t anything that you need.

[@leesadillman4443]

💥🌟✨🎉😘♥️💜♥️💙🧡💚♥️

[@MarleneMeier]

THINKING OF THIS EVERY TIME I WATCH THIS SHOW!!! ❤

[@JasonTylerRicci]

The football field/universe analogy is brilliant. I love when Neil breaks down the complexity of the universe into terms we layman can easily understand.

[@amberlynn147]

"Laymen" (or, preferably, "laypersons"). 🙂

[@TheDunlopdude]

What a perfect time to have the best person to interpret the universe, at the same time as the James Webb Telescope giving us the data to interpret.

[@StarTalk]

What a timeline to exist in!

[@beermerican]

Yeah and the JWT proves he is wrong. ( and an idiot)

[@jameslacy679]

Disagree. Sounds like he’s talking to a bunch of kids

[@Tech.Library]

On Religion, Neil twisted facts and was not fair to Islam when he talked about the 100 yard line... The Quran corroborate with the 100 yard analogy where it says; "Has there not been over man a period of time, when he was not a thing worth mentioning?” [al-Insaan 76:1].

[@big0ben209]

@@Tech.Library how can man exist without a surface in which to roam? It took time for such a planet to come into existence and a framework of atmosphere, weather, vegetation and such before man can even take a breathe on the planet.

[@owensingh]

The best group of people ❤️, Its a great time to be alive. Remember, The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself - Carl Sagan.

[@fulstaak]

Cosmos is an exceptional series. Just beautiful and fun to watch, and you learn quite a lot along the way. Loved it, each time I watched or rewatched it. I don't buy a lot of digital movies, I think I have less than 5, and these are one of them. The cosmic calendar was really well done. Thanks for this work Neil, hope there will be a 3rd season!

[@davidsheckler8417]

You're not learning anything 😅🤣😂 you're continuing your indoctrination 🤤🤪🤡

[@AttilaDuka]

Same opinion here.

[@davidsheckler8417]

@@AttilaDuka So you're also indoctrinated 🤦‍♂️

[@michaelbariso3192]

Time, space and distance are independent of each other, space-time is a fabricated construct humans invented. If the universe were expanding at 186,000 mi./s from a Big Bang the unimaginable centrifugal forces of gravity would bend, crush or flatten stars, planets and galaxies into infinite density, expanding and imploding before time existed and the earth would be flat as a pancake. If space was curved gravitational waves would throw planets out of orbit, altering time as galaxies and planets ascend and descend gravity waves, cause gravitational lensing in the Hubble and James Webb telescopes. Gravity expanding at the speed of light would make gravitational waves scientifically impossible! Einstein was either an imbecile or a fraud. Big Bang theorists bring new meaning to the term Flat Earthers :-). A Big Bang singularity would expand, implode in all directions before time existed so obviously measuring time would be scientifically impossible as time would run forwards, backwards in all directions and would have no beginning and no end. Without a universal time, past and future events would be relative to distance, so time would be relative-imaginary depending on the observers vantage point. Einstein was either an imbecile or a fraud. It is scientifically impossible for a universe to create itself from nothing, reside in nothing or expand into nothing since nothing has no properties. Out of nothing nothing comes. Explain how you can see and feel the infrared warmth of the Sun coming up on Earths horizon when light-speed (Einstein's space-time) tells us the Sun is supposedly 8 minutes and 20 seconds in a past dimension of space-time. The speed of light and gravity are both 186,000 miles per second, if the speed of light slows with the stretching of space-time, gravity must also slow as well. Explain how the planets in our solar system can maintain orbits if the gravity from the Sun slows down. If the Suns light, gravity and images are in a past dimension of space-time using the same frame of reference, all the stars, planets and galaxies in the universe would have different coordinates than Earth and would thereby violate the law of conservation of energy also making celestial mechanics of solar systems impossible. The communications delay between Earth and Mars is approximately 20 minutes. We're either viewing the light from Mars in the future, Einstein's past dimensions of space-time or in real time, which do you think is more logical? Einstein's relativity is wrong light has no limitation of speed; it cannot be slowed down because it isn't moving. From every vantage point in the universe light is omnidirectional-instantaneously traveling in both directions. Light and electromagnetic waves are independent of each other. If the speed of light is constant then past and future dimensions of space-time and an expanding universe would not be possible. From every vantage point in the universe light is omnidirectional-instantaneously traveling in all directions (forwards and backwards through Einstein's space-time) while violating the law of conservation of energy. Explain how Einstein's projectile light particle proton can travel in all directions having a (constant speed) of 186,000 miles per second. The speed of light according to Einstein's relativity is 186,000 miles per second, but according to physics if two mechanical watches were synchronized on earth and one traveled across the universe and back, there would be no difference in time between the mechanical watches proving the speed of light is instantaneous as the only way a mechanical watch will run slow is if you tighten the main spring :-). Time, space and distance are independent of each other, space-time is a fabricated construct humans invented. If the universe were expanding at 186,000 mi./s from a Big Bang the unimaginable centrifugal forces of gravity would bend, crush or flatten stars, planets and galaxies into infinite density, expanding and imploding before time existed and the earth would be flat as a pancake. If space was curved gravitational waves would throw planets out of orbit, altering time as galaxies and planets ascend and descend gravity waves, cause gravitational lensing in the Hubble and James Webb telescopes. Gravity expanding at the speed of light would make gravitational waves scientifically impossible! Einstein was either an imbecile or a fraud. Big Bang theorists bring new meaning to the term Flat Earthers :-). A Big Bang singularity would expand, implode in all directions before time existed so obviously measuring time would be scientifically impossible as time would run forwards, backwards in all directions and would have no beginning and no end. Without a universal time, past and future events would be relative to distance, so time would be relative-imaginary depending on the observers vantage point. Einstein was either an imbecile or a fraud. It is scientifically impossible for a universe to create itself from nothing, reside in nothing or expand into nothing since nothing has no properties. Out of nothing nothing comes. Magnetron Time is an abstract thought process of a conscious mind, where physical and nonphysical realities exist in a physical and nonphysical system called the universe. Is God Electromagnetic? sciforums.com/threads/is-god-electromagnetic.76891/?msclkid=536745d7b1bf11ec9e6fbe125fbe9860. Geniuses notice patterns or discrepancies that are not obvious to average minded people, they do not accept or take for granted things that other people do, they question why things are the way they are instead of following like sheep. "Intelligence sees the reality of what ignorance cannot, knowledge can be both painful and hilarious. While a fool follows others in the path of stupidity, a genius walks alone and laughs. Einstein Relativity 1=2 Fantasy Physics, Wave-Particle Duality, Photon, ... kzbin.info/www/bejne/ZpTNc5eKrKtprJo via @KZbin (Part 2) Einstein Relativity 1=2 Fantasy Physics of Relative Simultaneit... kzbin.info/www/bejne/iIfcm3aHi9t1iNU via @KZbin Special Relativity is Einstein's Biggest Blunder! kzbin.info/www/bejne/eZTRqpyCe9Z_Y7M+via+%40KZbin&feature=youtu.be The Scientific Evidence Against the Big Bang lppfusion.com/science/cosmic-connection/plasma-cosmology/the-growing-case-against-the-big-bang/ The Theory Of Everything According To Humans That Believe Their Intellect Evolved From A Monkey Brain www.academia.edu/79900784/The_Theory_Of_Everything_According_To_Humans_That_Believe_Their_Intellect_Evolved_From_A_Monkey_Brain?source=swp_share The first cells were simple so the nonintelligent process of evolution evolved life by adding millions more nonintelligent cells :-) This is like thinkin a TV will evolve if you bury a bunch of electronic parts in your backyard adding water, topsoil and Stardust. Explain how a nonintelligent unguided process with no eyes to see can evolve eyes without first having the concept of sight. Can you guess the reason why there are no blind brain surgeons :-) Once people been conditioned to believe an ideology all evidence to the contrary is rejected. Scientific evidence against evolution - the clash between theory and reality www.newgeology.us/presentation32.html B

[@davidsheckler8417]

@@michaelbariso3192 Lovely regurgitation of NASA

[@The_SCPFoundation]

My dog, (my 3 year old daughter's best friend), is turning 15 this February. I don't envy the equivalent human age of 105. And I now have major respect for his energy and health to keep up with my daughter. I can't see him passing within the next 2-3 years but with this perspective, it's unbelievable how old he actually is. 2 years would make him 135 😳😳 sonny Bono is getting major belly rubs and some baked chicken and rice today after work

[@johnb2706]

Neil Degrasse Tyson is amazing at explaining space and time so well we can almost literally see it.

[@quintenkortekaas2018]

This one of my favorite shows the explainers and the cosmic quaries are so damn good

[@mattevans-koch9353]

Thank you for another eye opening explainer. I recall a similar discussion of just human history when I was in high school history class. It was based on the length of a mile in yards and it was astonishing how short the present was. Have a great weekend all.

[@StarTalk]

Thanks, Matt!

[@andagain21]

I remember that cosmic calendar on Cosmos. It was really helpful and provided a lot of perspective

[@michaelnelson7240]

That calendar explainer video was my first time watching Neil very cool I can’t get enough

[@billross9744]

What an amazing explanation of how far back in time the James Webb telescope can go by using a football field analogy! Knowing that it can look back from the 7 yard line to present is now understood mind-boggling impressive!!!!! Thanks so much, Neil!!

[@ejmtv3]

That's why every time I hear a friend talk about Mercury Retrograde affecting their life, I slowly fade out of their lives.

[@Freelancer.Warzone]

So essentially, mercury being in retrograde did actually affect their lives lmao

[@StrawberryEyes0]

My dog was killed 1 month ago and everything in my life, every thought, every video has to remind me of her. Spend your time with them. They love you more than you love yourself. You never know if one day they will be gone.

[@StrawberryEyes0]

And you want to tell them you love them one last time, but you can't.

[@THall-vi8cp]

It's refreshing to see someone frame looking into the universe as looking into the past. So often, we look at some part of the universe as be X distance away, never really giving any thought that, due to extreme distances, by the time the light reaches us that part of the universe has changed.

[@IceMontgomery]

I appreciate the light hearted comedic turn this channel has becuz if they were serious 24/7 it wouldn't be as interesting! Human nature is funny sometime. Love the show!

[@la-gl4uh]

I disagree. I love NDT, but there's too much inter- joking which wastes time. signed, Fido.

[@IceMontgomery]

@@la-gl4uh i feel ya. With respect to your opinion, may i ask who you would rather tune in to for this type of info? 👀

[@chrisgorgol9442]

@@IceMontgomery just watch them all like me! Joe Scott + PBS space time + Isaac Arthur

[@IceMontgomery]

@@chrisgorgol9442 thanks Chris! Will do 😎

[@mickeybrumfield764]

We here the numbers thousand, million, and billion all the time without really grasping how large they are, especially when put in the context of time in years. Thank you Dr. Tyson for giving us some perspective.

[@StarTalk]

Thanks for watching!

[@jennieramm880]

Hear*

[@joseimpact]

this is the most American this ever "tell me how old the universe is in football field yards" 😂😂😂

[@mikekerezsi9672]

I love hearing Tyson speak on the universe, life, time! Thanks

[@Sammasambuddha]

It's ridiculous that Joe Rogan (love you joe!) has more subscribers. ! HIT THAT 👍 BUTTON ! Make the algorithm work for Startalk!

[@mattorr2256]

Rogan is polarizing and appeals more to the less educated. I’m just calling it like it is…

[@Sammasambuddha]

@@mattorr2256 Huh. I thought I did that. Thanks? 👍

[@andrewm000]

Neil D!!! What a thinker & communicator!

[@perloscippy]

You are my favorite to watch.. its my birthday today and im feeling kind of sad.. thank you for posting today and giving me a reason to smile

[@debbiehoagland548]

I need me some cosmic queries with just NDT and Chuck Nice! Those videos are so enjoyable!

[@ericparrish1515]

How to approach a question. I don't know how to say it like he does.

[@e818bboy]

Great video. So we been seconds in the time of the universe and we already destroying those chances. Wow!!!

[@Docta50]

There are a lot of blades of grass in between the 7 yard line and the end zone that need to be discovered.... I really hope that we as a species never stop pushing our limits and continue to have the hunger for discovery.

[@BIDEN.THE.CHILD.GROOMER]

Nobody asked

[@lesleyjane7785]

"Let's all take a moment to cherish the fact that Neil deGrasse Tyson popped into existance in our universe" ---this is true. And the word is existence. You are a Knight of Nobility, Champion of Science, and Studious Curiosity. Seemingly in possession of Great Imagination. Which, as Einstein pointed out, is more important than intelligence or education. But you have them too. Glad you're here. We need all the help we can get, man.

[@robinghosh8891]

We really get a deep insight into the Cosmos which is fantastically explained by Mr Tyson..Great Discourse

[@jmanj3917]

I'd like to point out how refreshing it is, and how reassuring it is, to see in the background of Neil's office not only one but two American flags displayed. That's not something that I see much of, any of it, really, in the world of academia.

[@KOKOLOYO]

Been waiting for this one 😮😮

[@RAYON10]

Everything that gets out of Neil's mouth is amazing

[@jimiverson3085]

That's the interesting paradox of better and better telescopes. We can see what other parts of the universe were like billions of years ago. But we have no idea what they are like now.

[@georgebartholemew8444]

You did a video on Earth's rotation. I would like to see one on our speed through space based not only on rotation but also on revolution around the sun. We would speed up and slow down wouldn't we?

[@Chris-hx3om]

From an external viewer's perspective, yes. From our own, no we are just 'stationary'... But them you have to add our solar system's motion through the galaxy, and our galaxy's motion through the universe. I did see all that done recently. Damned if I can remember where! Maybe Veritasium? EDIT: It's Vsauce, here's the link. kzbin.info/www/bejne/f3vLmI14o5J_fsk

[@andrewferrauiolo4618]

It makes you appreciate every day that we have because we are so small and not important in the grand scheme of the universe. We are a momentary speck in reality. So we have to appreciate each hour that we have and make the most of it.

[@chrisostling805]

I enjoy these videos so much, thank you.

[@michaelflores451]

Keep in mind... He said the thickness of a blade of grass not the width! That's just amazing how little time we have taken to damage our atmosphere!

[@ginnyjollykidd]

I'm so glad I got to see you in my hometown, Neil! Louisville, KY. Hope to see you again!

[@angebr4321]

Your Cosmos series was so good to ilustrate this

[@carnitagroves7758]

There was waaay more synergy when it was Neil and Chuck only with the occasional guest. The two men vibe off each other well.

[@AnantMall]

@@HopDavid ahan, got a example to quote?

[@JohnyG29]

@@HopDavid That's a tad harsh. Its usually topics outside astrophysics when, sometimes understandably, he typically displays his ignorance.

[@dtsai]

It’s more important for him to be entertaining and 80-90% correct than to be 100% correct. He’s not the guy building this stuff but he has to motivate someone to get into the field. I left the engineering field because it was too boring. Why not become an actor? But if someone had made it more exciting and fun for me, perhaps I would have stayed. That was the mistake for movies to give kids the impression that school is not fun, because then it becomes a self fulfilling prophecy where the kids don’t like school and the country declines like we have now. We could be a lot further ahead.

[@dtsai]

@@HopDavid have you not worked on a technical project? They get it wrong all the time which is why they test and redo. The whole scientific process is about constant failure to success. Yes , I’m glad you pointing it out that he is human and makes mistakes. And I’m just point that he is human and will make mistakes. So we are saying the same thing in a way. Just remember, don’t build your billion dollar company entirely based upon free KZbin videos. Trust but verify.

[@ambeshpratik8032]

@@HopDavid What do you have personally against him? You are everywhere obsessively badmouthing him. Your criticism doesn't even have anything to do with science either. I have read his paper as well as his books and they are exceptional to say the least. He worked with Brian Schmidt (noble prize winner). I have also attended seminar of people who work with him in Hayden planetarium. I'm a PhD student of spectroscopy and astronomy myself. I haven't seen a single evidence of him knowing any less than an average astrophysicist. Actually, the reverse is true. You don't go to Princeton and Harvard to do science simply by being an entertainer. There are plenty of those in all forms. Please resolve your issues for your own sake. You have an obsession.

[@MarSkai]

It’s just so simple for Neil to have that much more joy about it than Gary and share it all with us😂

[@MarSkai]

When the teacher’s seriously into it and you get the giggles during class…

[@blindsight3690]

Currently binge watching cosmos dude makes it all interesting

[@dmaximojellypedispamiddmax2664]

i love your show, we adore to listen you before sleep every night,

[@DavidAllen_0]

The universe began with a "big bang" no doubt about that. But before that, what is the possibility that it sparked because of a change in physics such as a quantum fluctuation (i.e. a false vacuum) which caused the emergence of the current physics we know and love today? I'm probably wrong but I do find it amazing how we're alive and consciously. It'd just be a little bit cooler to know the reason as to "why" and "how" we are here and able to observe our surroundings. I think this really digs deep into philosophy though

[@angryatheist]

Alternatively, instead a false vacuum a perfect vacuum could have existed pre bang and always had , which might be an explanation for the acceleration of the expansion we now see as the vacuum tries to reach perfection again

[@AbbyTheAbinator]

True. I think consciousness spawned from generations of communications and our social ties to one and other, plus family ties really make a huge difference in our lifes. So i think after it became the norm for us to be around eachother. We begin to understand that we need parents to nurture us until we can do it on our own. We understand that we're connected once you notice someone needs help or you helped another. Just as chaos is the underlining fact of the universe, all it took was time and countless other variables for something to eventually happen. So i believe just as must time passed and generations of minds coming and going, where one mind began to think that its alive and began to share this probably very enthusiasticly to its other fellow humans. It couldnt of been an homogeneous experience, it had to be shared, explained, experienced, throughout humanity from 1 mind. Just as it probably took 1 spark to start the on-going chain reaction of our universe.

[@gutamawado6904]

Try looking into metaphysics, you might find answers if you looked genuinely

[@Faisal.h7]

Maybe by experiencing a non-physical dimension only then we can know

[@furrybear9416]

My best guess thus far is microbial life is extremely common, intelligent life fairly rare and the reason we havent found microbial life yet it's hard to find, and intelligent life is far to far away, assuming it hasnt destroyed itself and most critically existed now while we exist. Talk about a long shot to find something that is almost definitely out there!🚀

[@dtsai]

Sunlight is 7 mins old. You probably can’t get current events using a telescope. Probably need quantum speed. For example, what you see on the computer screen is already behind what the CPU had already calculated and going to change it to in the next second. There could be advance SciFi aliens flying right in front of us but the light reflected back to won’t get to us for 100s of years.

[@maedux]

You're the only one who thinks we haven't found microbial life yet

[@_NCB_]

Incredible well explained.

[@BlackDevilSmoking]

Greetings from Greece! Amazing episode 👏

[@AJD...]

I can tell Niel has burning, passionate disdain for astrology and I can't blame him whatsoever 😂

[@wlockuz4467]

I agree lol Humans will blame anything but themselves when it comes to their mistakes or bad luck.

[@PinkHatred]

Something I’ve been thinking a lot about and need some minds to help me out. We know that gravity can bend light, not change the speed. So suppose that we send 2 telescopes or any type of observation tool into space. 1 in a pathway full of large masses giving us a gravitational lens and the other in the let’s call it path of least resistance; however, spots that are an equal distance from earth. So we aren’t changing the speed of light but the distance the light travels before reaching said observation tool. In theory and of the knowledge I have it makes sense to me that we would be able to study an object at different points in time simultaneously. Like looking at a lamp from one point while also looking at it from the same point where it’s bouncing from mirror to mirror. If there’s a law or something preventing that I’d be intrigued to know more, but I’ve been losing sleep over it. Thank you beautiful minded people!

[@jettmthebluedragon]

Well not necessarily you experience gravity all the time and you don’t bend 😑it’s the strange Nature of black holes ware gravity is being bent 😑

[@Idle_Cerberus]

This needs to be pinned

[@The_SCPFoundation]

@@jettmthebluedragon it definitely bends with other gravitational forces than just a black hole. Einstein' theory was completely tested and confirmed by a solar eclipse which he predicted correctly that light behind a star would bend around it.

[@jettmthebluedragon]

@@The_SCPFoundation yea but did he say it was a shadow? 😐it’s not a soylar eclipse that’s not being bent that’s the thing he did not understand 😑their were no telescopes 😑but he did not realize everything we see looks 2d but in Reality it’s 3d 😑so NO it’s not gravity thats being bent from a soylar eclipse he did not Calculate the rotation of this planet he did not Calculate the moons orbit as well 😑 Solar eclipses happen when the moon is completely in line with the earth 😑also he did not understand how this planet can change its axis 😑and orbit witch is also factors 😑its like this you have this a sheet of papper make a circle in orange to say that’s the sun now in black draw the moon 😑that’s how Solar eclipses work it’s not gravity 😑it’s just shadows 😑

[@The_SCPFoundation]

@@jettmthebluedragon what are you talking about? The solar eclipse is not the point. Smh the observation was done during a solar eclipse to confirm that light of other stars behind the sun will bend around the sun because of the gravitational force. Are you not aware of this historical experiment that helped change the scientific community? And yes they DEFINITELY HAD TELESCOPES during the 20th century. Even Galileo had telescopes!? Are you just randomly talking or you have no astronomy schooling to base your thoughts on

[@michaellardner3638]

"I'll have to do a quick calculation before that" is such an awesome flex of how smart you are

[@AbbyTheAbinator]

It is just as hard and as jaw dropping to wrap your head around 14 billion years compared to the amount of progress made in the last 100 years. Which is so small we probably don't have a unti of measurement or something to compare it too...

[@bonibroco1076]

Right! A wink could be a million years when sentient beings are in the mix. Just have to stop thinking in linear time.

[@AbbyTheAbinator]

@@bonibroco1076 linear thinking is yhe very bane of pur existence though... life is going.. so time follows. Though it is time thats the master. Lol

[@redneckshaman3099]

I'm addicted to pigger nussy 😻

[@rjsmith6698]

So if JWT can see back to the 7 yard line, how much more of a telescope would it have taken to see back to the 1 yard line or even the other end zone?

[@RottenMuLoT]

Just put another JWT in front of the current JWT and it will magnify just fine ;) I suppose this is not "how much more of" than how / what can we measure when light is so "low" in energy if almost absent.

[@LaurentCassaro]

You can't see before the Dark Age, no matter the size of the telescope you're using. Because the Universe was so dense light couldn't go through.

[@rjsmith6698]

@@RottenMuLoT that makes sense. I was thinking more of the cosmic microwave background, which I thought might also be visible in the infrared, but now that I think of it, I don’t even really understand what the CMB represents. I pictured it as something like a pressure wave from the big bang itself.

[@eveadams7785]

Thank you for helping us understand. Your brain is amazing!

[@abeautifuldayful]

Excellent episode. Of course, they all are.

[@michaelccopelandsr7120]

Time is fascinating. I worked the subway stations for nearly 10 years. From one end of the city to the other. Every so often I would notice the city would be saying that, "Today just flew by" or "The day was just dragging along." How can an entire city complain about the same time paradox unless it was effected by it. Maybe a time distorted bubble the earth passes through in its revolution around the sun. Maybe random waves of time distortion hitting the earth? Maybe they're randomly given off by the sun. Maybe they're from outside our Terran system and reach us in intervals. ???? Ti-i-i-ime, is on my side. Yes, it is!

[@Cnupoc]

Time doesn't care about time.

[@tuloko16]

Its the same with year 2020. A lot of people will tell you “it just flew by” or I don’t remember much...And the few things they remember is “foggy”. Something happened.

[@malcolmpulliam2709]

@@Cnupoc 😂

[@josephriley4356]

You know how they have an heat index, it's 80 degrees but it feels like 94 degrees. Maybe it's something like that but we haven't scienced it yet.

[@Andrew-zq3ip]

Working at a Cafe, I noticed a similar phenomena. There would be days where almost everyone ordered the same thing, or everyone would be impatient, or everyone would be withdrawn. It made me think, not that we have secret psychic connections, but rather we're all an extension of one thing, and it's overall mood effects us in our illusion of individuality. What are we if not matter that is self aware? Was that matter not all together in a single form originally?

[@blastoff9518]

Has the speed of light been “stable” the whole time of the universe?

[@IMWeira]

Excellent question, wish the answer was available.

[@Supernov4]

I imagine that would break a lot of physics we have today. So yes?

[@thijsrooiakker8498]

i like the explainers the most.

[@bd4_l]

Lol ty for explaining this in gridiron! Legitimately helped me! 🤯🤯🤯🤯🤯

[@ebcsecurity9490]

You mean Timeline of the OBSERVABLE universe

[@jettmthebluedragon]

That’s what I mean 😑it’s only the (observable) universe NOT the whole universe 😑but I do know this for a fact space and time are infinite 😑and our dna is super determined so no matter how many times your atoms are created and destroyed what you are is who you will be forever 😑if the universe as a whole had a beginning it will end if the universe as a whole had no beginning it won’t ever end 😑 plain and simple

[@yallmeetdenzel]

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[@juliettn8401]

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[@juliettn8401]

@Rickwayne0

[@w00dyalien]

Great analogies to give idea to its magnitude...

[@morisn]

Always amazingly entertaining

[@nimrodlevy]

Loved it!

[@morgatron34]

Let me tell you that the episode of Cosmos where Neil explained the time line of the universe inside of a calendar month was amazing. One of my favorites!

[@paulgray2928]

The coolest prof. in the universe, as far as we know.

[@buckeye9252]

Or Prof Chaos

[@salmanuel4053]

With James Webb findings, we now know some galaxies existed within 300 million years of the Big Bang. Maybe those developed life, just not human life. Such a finding could restore the "perfectly tuned for life" view of the cosmos.

[@phill6815]

The big bang didn't happen, it was proven recently.

[@michaelrogus4485]

Very nice!

[@nigelb7737]

Thanks!

[@therealscrappyog]

Bless this chanal and this Nice informations 🙏⚡🤲🙏❣

[@electroix]

Thanks for this blow mind explanation. Then it would be possible to see almost the whole life of the Universe! And if we assume that out there would be galaxies, starts and planets which have already passed through what us happening now on Earth and the Sun, then we can also see the future, right? If this is true, then, what is time if right now we are receiving “information” from past and future? Really amazing.

[@Nightcrawler333]

16:45 Neil said "and there you have it" and I expected "homeboy" after that phrase..

[@michaelres5335]

What an episode!!! Just neat 👍❤

[@waynetec13]

Neil, I'm a lawn care professional. What type of blade of grass? Are we discussing Centipede, or Zoysia? There's a huge difference, especially at this scale. Maybe it's pedantic, but if you can be a stickler about the stars visible (related to your profession) in movies, I can be a stickler about grass (related to my profession) in your analogy. So, which is it?

[@francescos7361]

Thanks prof.De Grasse yoj are a Greta educatori.Thanks for sharing your observations and studies with us.

[@co-vids]

Interesting 👍

[@831Billy]

Totally Awesome asper usual Neil

[@denniskiarie1984]

I watch ,I like I subscribe

[@dr.jekyll2017]

The same with temp as time measurement and everything in the universe. You can make it as complicated as it is or you dont have to take the temperature of everything to know the temperature. Science is so cool.

[@bestescapes]

I love the dog analogy. That is something I deal with every day 🤣

[@oof6520]

@@HopDavid I think it's calculated using all dogs average age, like some humans can live 100 years or longer, but our average life expectancy is around 75-85 years old while dogs average around 7-12

[@joshuahunter2825]

When I hit the like button it went from 7.9K to 8K. Never have to roll over like

[@harshavardhannaik2499]

Hello Dr. Tyson, Hey hey hey Chuck Nice to see you Gary. This is Harshavardhan from India, i will make it easier for you Chuck you can call me Harsh. Dr. Tyson, I couldn't get an answer with my thinking hat on, please help me understand what is the minimum amount of gases that is required to become a stable sphere of gases in space like our gases giant. If we could measure the distance of that sphere from one end to the other end how much would it be?

[@rogerdudra178]

Thanks.

[@jamesbrooks4971]

Everyone in the world should watch this video

[@americanrizvi26]

My only wish is to meet Mr. Tyson and shake his hand. Thank him for educating me.

[@thechosenone8523]

She: What's your pickup line. Us: Chuck, back on your face.

[@ShaderockLouis]

Love the camera work (0:04-0:06) lol "Gary/Chuck". Love you NDT #camerawork lol

[@kariannecrysler640]

Wonderful analogy using a blade of grass. Thanks for a great discussion. I must thank Pocketlocker86 channel for his recommendation 😊

[@Sonny2009]

This gives me such goosebumps.. So you have telescope strong enough to see stars at their earlier stage! Doesnt it mean if we can zoom high enough, we can maybe see dinosaur running around ??????

[@joshdelgado2233]

Ooooo that Dog life span analogy was deep. I like it.

[@ecemilegonulbondaji3005]

Keep Neil safe no matter what. Bc he is one of his kind . Like the universe always on time 🤌🏽 we solve this now or never moments thanx

[@VentusGamingX]

I love this ❤️ People love you guys ❤️

[@MikelNaUsaCom]

Slide rules are very good for examining ratios... =D

[@randy11748]

This reminds me of a Douglas Adams book. The scientist’s wife was always telling him to get a sense of proportion. He was convinced that in a universe of infinite size, the one thing you couldn’t afford was a sense of proportion!

[@Darkmountaindweller]

The dog analogy was mind blowing

[@pedrovib2107]

Everything we see is in the past. Light travels to our eye and is processed. That takes time and when we “see “ it, it has already happened. So we are constantly looking at the past.

[@AbnerChamate]

Being here after all this universe evolution in such long time makes us the top chain. Importance depends on how well we do In the future and not our short cosmic existence.

[@84Actionjack]

Would luv to see ... this sent me immediately to Saturday Night Live skits.

[@diegofernandez4789]

Metric system, religion, and of course science. Who knew this explainer was going to be so epic.

[@brianstrutter1501]

Actually kinda destroyed religion, 🤣🤣🤣

[@Z06Wingnut]

Neil, we need a cosmic gridiron shirt. Also, you need a cosmic gridiron tie and/or vest.

[@eddiecordova8648]

Neil Tyson you are the man!

[@roobscoob47]

NdGT, C-Nice and G-legz! Good episode!