Neil deGrasse Tyson Explains How Many Stars You Can See In the Night Sky

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  • Опубликовано: 5 янв 2025

Комментарии • 733

  • @TSMM-xd2yn
    @TSMM-xd2yn 4 года назад +98

    It's great to see how Chuck's involvement has increased over the course of these videos from someone just asking questions to an interested and knowledgeable participant. Chuck and Neil have a very nice on-screen rapport. My favorite RUclips video series ever!

    • @mkevilempire
      @mkevilempire 2 года назад +2

      I really enjoy the whole format of scientific topic mixed with comedic input.
      All co-hosts I've seen were great, but Chuck and Neil just have a vibe like no other combination, frequently make me smile. Or 'Chuck'le...

    • @PastorJamesGillespie
      @PastorJamesGillespie 6 месяцев назад

      And I feel just the opposite. That the age of Chuck has ended and time for a new sidekick😢

  • @applicableapple3991
    @applicableapple3991 4 года назад +80

    I like how Neil actually makes Chuck ask the questions

    • @gdavies4
      @gdavies4 3 года назад +2

      10:02 Chuck's like does he really want me to ask him that...

    • @99guspuppet8
      @99guspuppet8 2 года назад

      like a ventriloquist

  • @otakuman706
    @otakuman706 4 года назад +39

    Seeing everything is one thing I miss about living in the middle of the New Mexico desert.
    About an hour away from the nearest city, which had less light pollution than many to start.
    In the winter (but not frigid temps) I would go out and lay on a trampoline with a blanket, pillow, and supplies, and just stargaze for hours. You could see an absolutely stunning sky, surrounded by nature. Hearing coyotes and other animals running around, while seeing tons of stars, and some of the milky-way, was absolutely beautiful and awe inspiring.

    • @ManicYouniverse
      @ManicYouniverse 3 года назад +2

      You have NO idea how much I envy you!
      Greetings from southern, polluted Poland! ;)

    • @ronfullerton3162
      @ronfullerton3162 3 года назад +4

      When young, I loved to plow the fields for Dad on the farm at night in the fall or spring. Light pollution was almost non-existent back then in rural Iowa in the 1960's. It was a wonderful and restful ending of the day viewing the beautiful sky. Everyone should get the chance to see the beauty of the night sky at least once in their life. It is so overwhelming.

    • @constancemiller3753
      @constancemiller3753 3 года назад +2

      Neil's fist measurement was✊nerdy but Chuck ( and most of us) are with you on stargazing in New Mexico. 👍

    • @edmiera3583
      @edmiera3583 3 года назад +1

      I envy you because when I was young in the 60's I would lay out on the lawn listen to am stations from Texas and gaze at the stars your post brings back memories
      do I need to move to New Mexico to see these sites again? I live in Colorado and we don't see the stars like that anymore

    • @steeniversen971
      @steeniversen971 10 месяцев назад

      and supplies🤣🤣🤣

  • @davidrobine5350
    @davidrobine5350 4 года назад +76

    The thing I like about looking at The Andromeda Galaxy is that the light from it that we see left there before we were even human. That’s awesome to me.

    • @MattH-wg7ou
      @MattH-wg7ou 4 года назад +6

      Right!? It's so cool to me to look at it and realize that light has been traveling for 2.5 million years, just to be intercepted by my retina. And to realize that that's the direction our galaxy is traveling, Milky Way and Andromeda are heading torwards each other.
      If you ever have the chance to look at it through IR NVGs you should. Its a lot bigger.

    • @mattyice535
      @mattyice535 3 года назад +1

      It really is amazing to think about

    • @costco_pizza
      @costco_pizza 3 года назад +1

      @@MattH-wg7ou What is so sad is that what we are seeing likely isn't even there anymore. We will have to wait 2.5 million years to see what it is today. :(

    • @calebjaymes9710
      @calebjaymes9710 3 года назад +1

      Nice profile picture lol

    • @conorhaynes-mannering5094
      @conorhaynes-mannering5094 3 года назад

      @@costco_pizza at which point we will be 2.5 million years ahead wondering the same thing hahaa

  • @kymmzej9173
    @kymmzej9173 4 года назад +259

    When you, a nerd, tell a "Nerd joke" to one of your non-nerd friends. 5:56

    • @me_and_me_
      @me_and_me_ 4 года назад +1

      ruclips.net/video/b2TOptPqgis/видео.html

    • @_The_Dumbass_
      @_The_Dumbass_ 4 года назад +21

      0:28 would also work

    • @Jay-om8gr
      @Jay-om8gr 4 года назад +2

      🤣🤣🤣🤣🤣🤣

    • @TheMarcQ
      @TheMarcQ 4 года назад

      @@me_and_me_ nice

    • @kmb_jr
      @kmb_jr 4 года назад +15

      .. And again at 9:59 😂🤣😂🤣😂

  • @IchigoKurosakicool
    @IchigoKurosakicool 4 года назад +216

    for me it's actually less than 10 given the light pollution, and 4 OF THEM ARE PLANETS

    • @jamiehoover33
      @jamiehoover33 4 года назад +19

      Poor city folk

    • @jaroslawradecki7166
      @jaroslawradecki7166 4 года назад +13

      Wait, are there stars outside of the basement?

    • @IchigoKurosakicool
      @IchigoKurosakicool 4 года назад +1

      @@jaroslawradecki7166 don't know man, we dont have one

    • @jaroslawradecki7166
      @jaroslawradecki7166 4 года назад +3

      @@IchigoKurosakicool What do you mean? You don't have an outside basement?

    • @IchigoKurosakicool
      @IchigoKurosakicool 4 года назад

      @@jaroslawradecki7166 uh no, i live in a military station and we have government provided storage and parking, we don't have that.

  • @spaceman5089
    @spaceman5089 4 года назад +150

    Question: How many stars can you see in the night sky?
    Tyson: The sky is the limit

    • @masternobody1896
      @masternobody1896 4 года назад +1

      tech is about to go crazy

    • @r4a2g0
      @r4a2g0 4 года назад +2

      Ba dum tiss 🥁

    • @spaceman5089
      @spaceman5089 4 года назад +1

      Richy-J but does the sky we see NOT limit how many stars you CAN see? To say 3,000 -6,000 stars?lol..

    • @me_and_me_
      @me_and_me_ 4 года назад

      ruclips.net/video/b2TOptPqgis/видео.html

    • @Stuit3rb4l
      @Stuit3rb4l 4 года назад

      Your eye is the limit...

  • @BlairCoron
    @BlairCoron 4 года назад +126

    I fear as a whole we are losing our connection with the night sky and it is bearing such negative consequences upon us. If more of us tried witness the stars a little more regularly we would bathe in their cosmic perspective and literally shine a light upon how trivial many of our daily problems are. Thanks Startalk for existing and also being the voice of reason during these hard times.

    • @me_and_me_
      @me_and_me_ 4 года назад

      ruclips.net/video/b2TOptPqgis/видео.html

    • @zanb35
      @zanb35 4 года назад +6

      Humans just can't imagine how big the Universe is and how small we are compared to it all. If they would just imagine the size of just Jupiter itself maybe they would put it all into perspective on how big Galaxies are light years across. Maybe they would appreciate the little things more and this world would be a better place right now.

    • @MaxHohenstaufen
      @MaxHohenstaufen 4 года назад +3

      That ship has sailed long ago. Since artificial light was put in the streets we have lost our ability to actually see the night sky. Humans used to go to sleep not much longer after sunset. Now we spend a lot of hours active during the night. Our cicle has changed.

    • @martinhrubjak9625
      @martinhrubjak9625 4 года назад +4

      I do watch stars on my balcony during clear nights cuz even tho I live in village, my balcony is away from any light source

    • @vetiverose128
      @vetiverose128 4 года назад

      Totally. My city has high levels of light pollution. I can only spot a few handful of stars (less than 10) on a clear night. It's quite tragic.

  • @rysacroft
    @rysacroft 4 года назад +14

    Until today I had never seen StarTalk. Wow! Educational and humorous in one package, these guys are a hoot. Subbed now.

  • @ForestPantherGod
    @ForestPantherGod 4 года назад +95

    "Yeah....I'm not going to do that." LOL, I kinda felt the same way, Chuck.

    • @ianyboo
      @ianyboo 4 года назад +5

      Yeah I about spit out my drink at that line. Perfectly timed

    • @krisbrixon
      @krisbrixon 4 года назад +1

      Yeah, but Chuck Nice is getting way smarter about this stuff than the rest of us. Give him a month or so, he will geek out too.

    • @me_and_me_
      @me_and_me_ 4 года назад

      ruclips.net/video/b2TOptPqgis/видео.html

    • @andrewolson5471
      @andrewolson5471 4 года назад +1

      Chuck is refusing to fist the sky.

  • @tekkalirahul669
    @tekkalirahul669 4 года назад +166

    He is one of the most interesting yet inspiring person..

    • @peewee130946
      @peewee130946 4 года назад +2

      Except he ruins everything lol you can’t enjoy any white lies without him bursting your bubble

    • @FWtravels
      @FWtravels 4 года назад +11

      I agree! Chuck really is great!

    • @me_and_me_
      @me_and_me_ 4 года назад

      ruclips.net/video/b2TOptPqgis/видео.html

    • @EvenTheDogAgrees
      @EvenTheDogAgrees 4 года назад +7

      Interesting... _Yet,_ inspiring? Because... The two are usually mutually exclusive? :')

    • @montuedge
      @montuedge 4 года назад

      Yes indeed

  • @flexable9256
    @flexable9256 4 года назад +32

    Full Moon screws the night stars. I know worse than that: The Sun.

    • @tanadarko6991
      @tanadarko6991 3 года назад +5

      It's always the sun's fault - because that's what's lightin' up the full moon!

  • @MrZenmancer
    @MrZenmancer 4 года назад +13

    Forget binos, I use to stare at the sky with Night Vision Goggles while I was in the Army. The number of stars you can see is amazing when you can also see in infrared.

  • @OCGGVENOM
    @OCGGVENOM 4 года назад +3

    I'm an amateur amateur astronomer and the moon being out is great to help locate constellations using an app in the city. But drive out to Joshua Tree Park in California during a new moon and the sky is breathtaking with the amount of stars that are visible. Get a pair of binoculars and the amount of stars becomes astronomical.

  • @AJD...
    @AJD... 4 года назад +8

    Love how easily Neil plays with Chuck.

  • @Chris-hx3om
    @Chris-hx3om 4 года назад +52

    2:30 "the moon has light, reflected form the sun.
    Thousands of years ago people thought the moon had it's own light."
    Check out some of the flat earth videos. I think you'd be surprised.

    • @jasonantigua6825
      @jasonantigua6825 4 года назад +3

      I’ve seen stuff on it! It’s crazy

    • @me_and_me_
      @me_and_me_ 4 года назад

      ruclips.net/video/b2TOptPqgis/видео.html

    • @МагзумХанов-ф9ц
      @МагзумХанов-ф9ц 4 года назад +2

      The moon has no light of its own, because it's just cheese. 🧀😜

    • @ohihassan693
      @ohihassan693 4 года назад +4

      Some people actually knew that moon doesn't have its own light and the light we see from it is actually the reflected light from sun, more then 1400 years ago.

    • @m2pmd70
      @m2pmd70 4 года назад +6

      Have you seen them claim that the moon makes "cold light?" Yeesh.

  • @joesikic6531
    @joesikic6531 4 года назад +5

    The most amazing night skies I've been lucky enough to have seen are in Africa (Hwange national park?), Rocky mountains Colorado and near Uluru (Ayers rock). Absolutely amazing. Would be nice if we had less light and particulate pollution everywhere

  • @akzymator6932
    @akzymator6932 4 года назад +10

    Everytime I watch him.......he just blows mah mind ......

    • @waynejackson1426
      @waynejackson1426 3 года назад +1

      Yeah! Is there anything that he doesn't know? My goodness!

  • @technician0096
    @technician0096 4 года назад +5

    I live in Newfoundland, not long ago the sky was so clear I was actually able to see the Milky Way galaxy. It was soooo cool. Happens once in town away from heavy lights... and another 2 times further in land and away from the main city

  • @Sheena-op1rg
    @Sheena-op1rg 4 года назад +10

    I could listen to Neil all day! ❤️

    • @me_and_me_
      @me_and_me_ 4 года назад

      ruclips.net/video/b2TOptPqgis/видео.html

    • @Sheena-op1rg
      @Sheena-op1rg 4 года назад +1

      me and me well that escalated quickly

    • @hermanwhite7518
      @hermanwhite7518 3 года назад

      Me too very soothing and relaxing vocals
      If he can read me a book every night i can do away with my 60inch lol ..

  • @envenenadocalculandosemsab5011
    @envenenadocalculandosemsab5011 4 года назад +5

    I really do appreciate your work here...
    Thank you for your time sharing !

  • @bubbles25403
    @bubbles25403 4 года назад +9

    As always my mind as been blown. Thank you Neil. Till next time.

  • @The268170
    @The268170 4 года назад +10

    Now I wanna go out and get me a pair of them "Honkerin' Binoculars". xD

  • @mags102755
    @mags102755 4 года назад +6

    I'm with Chuck, I don't have the math skills. However, I love learning, as I am a learning professional. So thanks Neil!

  • @theinterruptedlife1783
    @theinterruptedlife1783 2 года назад

    By the extrapolation of one fist then multiplying by 420, better to divide 3000/420 ~7, thus there should be approx 6-7 stars under your fist and you dont have to do any other calculations :)

  • @Brownkidc
    @Brownkidc 4 года назад +1

    I’m 28 years old. Served in 2 wars across 2 different continents and I’m out of the military now but planning on going to school for a degree in physics because you’ve inspired me. What are some pointers/tips you can throw my direction?

  • @jimmymonztarella8562
    @jimmymonztarella8562 4 года назад +1

    Stargazing is my absolute favorite hobby!! Thanks for the binocular tip gotta get myself a pair.

  • @mematron
    @mematron 4 года назад

    The best kind of explainer video without cheesy motion graphics

  • @vimalramachandran
    @vimalramachandran 4 года назад +2

    Andromeda Galaxy never ceases to amaze. How many civilizations could be there in it?

    • @NanocDark99
      @NanocDark99 2 года назад

      Could be? You mean ARE there!

    • @vimalramachandran
      @vimalramachandran 2 года назад

      @@NanocDark99 We don't even know of a single other civilization in our own galaxy, let alone a different galaxy. So I didn't want to sound certain about it.

    • @NanocDark99
      @NanocDark99 2 года назад

      @@vimalramachandran
      Because our "eyes" and technology are to bad/small/young. We are barely able to see outside of our solar system with our technology so... we just started finding exoplanets. Wait a few years or month more. There will be found life in the milkyway soon.
      There IS life! We are no gods. We are just a bit seldom but not to seldom.

  • @alvkarthik2018
    @alvkarthik2018 4 года назад +4

    That first math was so interesting. I mean a simple concept can count 3000 ✳️

  • @marcusanderson8180
    @marcusanderson8180 4 года назад +3

    Another awesome video. How to measure the stars we see at night! You make science so cool.

  • @paulcombs-bomuse6172
    @paulcombs-bomuse6172 4 года назад +2

    Neil, I think I have said this before, but I am so grateful to your mom and dad for bringing you into this life.

  • @njrivetelite
    @njrivetelite 3 года назад +2

    I was gonna say.. you can see Andromeda so you can see more than 3000 stars..
    But Neil beat me to it.

  • @MikkoRantalainen
    @MikkoRantalainen Год назад

    12:40 You don't need to actually count that much. *If you can cover 15 stars with your fist,* you're in the correct ballpark. That's because 15*420 = 6300. And during full moon you can cover maybe 2 stars on average.
    Try to find a patch on the sky where you can cover even 20 stars with your fist with the arm fully extended.

  • @NoodleMcnoodle
    @NoodleMcnoodle 4 года назад +7

    It's a clear night in Los Angeles tonight. I count 25 stars. Make that 21 stars and 4 planets.

    • @isaacraid9975
      @isaacraid9975 3 года назад

      living in Minnesota country, the clear night is fascinating it really seems like more than than 3,000. I feel bad for you with all that light pollution.

  • @misterx168
    @misterx168 4 года назад +3

    This is awesome i was just about to download as a podcast one of your old videos and suddenly this ;D

  • @mitchwilson1969
    @mitchwilson1969 4 года назад +3

    Chuck: I'm telling you that I'm not going to do that. (12:08)
    Me: I'm definitely doing that tonight.

  • @Nottsboy24
    @Nottsboy24 4 года назад +1

    I love studying stars 🙌 great upload guys 👌🎓👓🔭

  • @prunesquallor3444
    @prunesquallor3444 4 года назад +10

    When New York had a famous blackout back when, people flooded emergency switchboards wondering what the bright smudge in the sky was. They had never seen the Milky Way before.

  • @Starfals
    @Starfals 4 года назад +32

    Love the ending, it made the video go full circle :D
    We started from a Billion stars, went back down to a few hundred then all the way back to Billion ( thanks Andromeda

  • @jimpartridge9634
    @jimpartridge9634 4 года назад +1

    Mars was amazing on 10/2/2020 here in Iowa. The moon was orange with harvest dust and Mars was big and bright night next to it at about 7:30pm. Roughly the same color. So cool.

  • @hermanwhite7518
    @hermanwhite7518 3 года назад +2

    I love Neil..when he said you look up and only see 3000 stars in the night sky with the human eye..then switch to 6000 lol made Chuck 😂

  • @jadanabil8044
    @jadanabil8044 4 года назад +4

    This Neil guy doesn't want to waste even a second.

  • @xBrandon18786x
    @xBrandon18786x 4 года назад +3

    I just gotta say. I love these guys! Teach me more. Plz

  • @patindaytona
    @patindaytona 18 дней назад

    I can count maybe 4 or 5 of just the very brightest stars where I live with light pollution. It was expensive, but bought a night vision device to use with my 16 inch reflector and can see thousands easily. I'm out every clear night past several years. Never get tired of it.

  • @chrism3784
    @chrism3784 10 месяцев назад

    I went to big island hawaii last summer to check out a few sites like the volcano that just started erupting when I arrived. Also some of the beaches. Most important thing I wanted to see and do was the Mauna Kea tour. I purposely booked a flight and made reservations when the moon would not be out in evening/nightime hours. I went when the moon was in last quarter and wouldn't be seen till after midnight when the star tour was over. It was an amazing experience. I saw Alpha Centari and southern cross for the first time being so far south in latitude

  • @mainmrawesome4511
    @mainmrawesome4511 4 года назад +8

    I just hopped on and saw you guys posted this 1 minute ago 😳

  • @vagramvardanyan9407
    @vagramvardanyan9407 2 года назад +1

    The thought that we can never visit these worlds is kinda disheartening, the thought of visiting some lf these galaxies and worlds some that may be similar to ours is mind blowing, I dont think we will ever leave our galaxy.

    • @aaronthenorm5400
      @aaronthenorm5400 Год назад

      It would be amazing if we could even reach another star system!

  • @kareemramzey8870
    @kareemramzey8870 4 года назад +1

    Hey Neil and Chuck have you ever think about the shape of our space out side it and how would it look like?

  • @tnogl4678
    @tnogl4678 4 года назад +2

    I found this amazing channel through Film Theory, thank u !!

  • @lghammer778
    @lghammer778 4 года назад +1

    Imma try the multiply by 420 trick,
    Is a telescope situated in an observatory on the moon going to yield significantly different results? Or would the fact that the earth would appear so much bigger in its sky cause an even more massive light shinning up into its stellar view? Possibly there's a spot on the moon that would be best suited for an observatory, bearing this in mind

  • @nath844
    @nath844 4 года назад +1

    The blank face Chuck makes when Tyson is explaining how to calculate the square patches is the face I've made in every math class ever.

  • @husseysa6482
    @husseysa6482 4 года назад +4

    Loving Dr. Tyson ❤️

  • @dorothyedwards7225
    @dorothyedwards7225 10 месяцев назад

    This was cool, fun, amazing, and educational!! Tahbk you Neil and Chuck!!!!

  • @ernestobrazilian
    @ernestobrazilian 4 года назад +2

    That show is so awesome. Laugh and learn as if you are chatting with your best friends.

  • @josephmiller1576
    @josephmiller1576 3 года назад +1

    My favorite pod cast. . . Love you guys

  • @thomasalias8492
    @thomasalias8492 4 года назад +13

    I tried the 9 fists trick and it worked. 🤯

  • @JesusMendoza-fy6xf
    @JesusMendoza-fy6xf 4 года назад +5

    Awesome As ALWAYS

    • @me_and_me_
      @me_and_me_ 4 года назад

      ruclips.net/video/b2TOptPqgis/видео.html

  • @viralmath
    @viralmath 4 года назад +1

    fantastic! Thank you Dr. Tyson and Chuck

  • @TheXenProject
    @TheXenProject 4 года назад +4

    This doesn't make sense on nights where you can see the milky way. Maybe 3000 independently discernible stars, but certainly tens of thousands contributing to the light you see from Earth.

  • @yxzuk9214
    @yxzuk9214 4 года назад +5

    5:50 neil found that story way to funny but i enjoyed it haha

  • @thesteelshadow4570
    @thesteelshadow4570 4 года назад +2

    Thanks for uploading , these are both fun and informative videos to watch !
    I wish you could provide more information about the moon , I really love Lady Luna !

  • @jerrodbridgeforth4201
    @jerrodbridgeforth4201 3 года назад

    Another great segment

  • @factsbro6634
    @factsbro6634 4 года назад +2

    So insightful ❣❣❣

  • @karencolon5152
    @karencolon5152 3 года назад

    Here on Long Island, NY there is so much light pollution and humidity, I really don't know any summer constellations, and it's just nice to see Orion in the Winter night sky.

  • @messiboy17
    @messiboy17 2 года назад +1

    This gives a new meaning to, I love you 3000 👀

  • @katyRose088
    @katyRose088 Год назад

    My mind is blown. I have been looking at that fuzzy spot for a long time and now boomI know what it is. This is amazing. Of course I had to grab the binoculars and go outside. For stargazing.❤ thank you so much.

  • @jar-jar3806
    @jar-jar3806 4 года назад +3

    Learning from Neil is a constant that gives my life purpose in the pandemic. I am eternally grateful for his wisdom, and shared fascination with the universe... sometimes it makes me cry.

  • @angryyoungman66
    @angryyoungman66 10 месяцев назад

    I was just looking at nightsky , and it was incredible and amazing I saw too many stars that I started feeling lost , some stars look very close to each other the distance between them from my perspective is less then the size of the tip of my finger , yet in reality this distance could be life of generations travelling from a star to another , its an amazing experience to stare at the stars for sometime even emotionally its healthy , you pick one and stare at it and wonder what's happening there and if there is some there looking back at our solar system

  • @JohnFleshman
    @JohnFleshman 11 месяцев назад

    Come visit Tonopah Nevada. Tiny town a mile above sea level in the Nevada desert. Absolutely great night sky viewing during a new moon!

  • @fergusrb
    @fergusrb 4 года назад +1

    My question is how do you determine how far way a planet or star is? I understand that a planet that is 10 light years away is it took ten years at the speed of light for that planets light to get here. How do you know that the light left the planet 10 years go or a million years ago if it was one million light years away? Bruce from the City of Orange in Orange County California

  • @essahsaeidi5543
    @essahsaeidi5543 3 года назад

    l've the show love the hosts, but ALSO I really love the theme song at the end and beginning, proper respect to the music its awesome!!

  • @bartmacaluso
    @bartmacaluso 4 года назад +1

    Something I have noticed is that the front part of my eye cannot detect as well as the "side" part of my eye perhaps because of ordinary damage and that light gets into my eye better on the "side" of my eye because its like spotting a spectral ghost... That I know I saw something and when I go to look at what I thought I saw from the side of my eye with direct sighting, the thing is there it is just faint ...

  • @vitruvyan3033
    @vitruvyan3033 4 года назад +3

    I love you, StarTalk family!

  • @EvenTheDogAgrees
    @EvenTheDogAgrees 4 года назад +1

    Another way to figure out the moon doesn't give off its own light is by noticing the craters cast shadows. When was the last time you saw a light bulb cast a shadow on itself?

    • @khurramkayani6978
      @khurramkayani6978 3 года назад

      It is mention in Quran 1400 years ago that moon has borrowed light

    • @EvenTheDogAgrees
      @EvenTheDogAgrees 3 года назад +1

      @@khurramkayani6978 Well, it's interesting to know that the Muslims were aware of this. What do your scientific texts say about this? I believe you guys were pretty good with math back in the day; we still use your numerical system and algebra to this day, which was a huge improvement over the system of Roman numerals.
      In fact, even the Greeks knew the moon was spherical, revolves around the earth, and reflects sunlight. They even had pretty good estimates for the size of the moon and its distance from earth, but I have no idea how they ever managed to work that out. The philosopher Anaxagoras of Clazomenae was imprisoned in 450 BC for claiming that the sun was not a god, and the moon reflected the sunlight. Not sure if he was the first to realise this, but to my knowledge this is the first time it's mentioned in history.
      My guess is this knowledge (and so much else) was probably lost to us in the West, especially during the middle ages, and only rediscovered during the Enlightenment. But I could be wrong. I mean, it seems so obvious once you stop to think about it that it's really surprising it took humanity until the Greeks to figure it out.

    • @khurramkayani6978
      @khurramkayani6978 3 года назад

      Quran is the word of God almighty it was revealed to prophet Muhammad 1400 years ago it's not a scientific book but God did mention scientific facts in Quran as a sign to mankind that it is his word for example big bang is mention in Quran, shape of earth, it is mention litterly that we are expanding the universe , every human has different index, that montains are pegs, that all selateral bodies are floating in their orbit, planets had gander, about death of stars, we red in books as kids THE son is stationary was it Quran that son is rotating around its axis, about different stages of baby in wombs I can mention a lot more but the point is all that and many more no one knows 1400 years ago only God could have tell spacely WE ARE EXPANDING THE UNIVERSE

    • @EvenTheDogAgrees
      @EvenTheDogAgrees 3 года назад

      @@khurramkayani6978 Honestly, I have little interest in religion. It all started with prehistoric man trying to understand the universe, and since they didn't yet have much knowledge and/or logic, the natural explanation was "it must be some kind of being more powerful than us; let's call it a god". That's where the concept of deities originated, and subsequent cultures have only expanded upon and refined that notion.
      I'm sure that Christians can also interpret a lot of stuff from the bible as proof that it's true because it contains "knowledge the writers could never have known" or even "predicts things that we see coming true today". But it ultimately always relies on that: creative interpretation of vague descriptions, and wilful ignorance of anything that contradicts whatever it is we're trying to prove.
      Religion has certainly done some good for mankind. It has given us a moral compass by which to lead our lives. But that moral compass still makes sense without having been decreed by some imaginary father figure. On the other hand, a lot of innocent blood has been spilled by fanatics in the name of "God". We did it to your people during the crusades, and some of you who interpret the Quran in a certain way are paying us back in kind today. Wars have been fought in the name of "God", and atrocities committed. I'm sure that if that initial caveman who first coined the term "god" had never intended such folly to result from his ill-conceived "theories"...

    • @khurramkayani6978
      @khurramkayani6978 3 года назад

      You kown that all the advancement in science but how much we know about consciousness not much at all that is the main part of ourselves and that is the one even Ellen musk trying to save but unfortunately that has nothing to do with material world we are spiritual beings and just like we cannot destroy matter our consciousness is transferred somewhere else after we die there could be next life all animal kingdom and nature is serving us so we are the center of this exhibit and I don't think so we will die and every thing will be over think about that if somehow you tell a baby in womb that one day you will breath air you will walk on earth you will eat from your mouth and drink you will fly on plan you will do all other amazing things HE WILL SAY YOU ARE CRAZY
      World war 1 and 2 were not fought because for religion most of the bloodshed was not shed because of religion including most resent one mostly because of power and greed

  • @KunalBansalCreation
    @KunalBansalCreation 4 года назад

    You need better sound mixer for your videos. Part of the videos are barely listenable and parts are too loud. Constantly needing volume adjustments.

  • @CocoTheDiamond
    @CocoTheDiamond 4 года назад +3

    i so love neil......... i’ve grown up being educated by him. 💜

  • @ehm4-productions
    @ehm4-productions 4 года назад +2

    Neil... of the 3000 or so stars I can see in the night sky, how far back in history am I looking? I hope I’m asking correctly.... or on average of those 3000 stars, how long did it take for the light to hit our eyes?

    • @platformstrange1794
      @platformstrange1794 4 года назад +4

      Most within 1000 lyrs
      So light starting it's journey to your eyeball sometime around the battle of Hastings. Or Canterbury cathedral was founded.

  • @redmatrix
    @redmatrix 4 года назад

    2:45 "What happened to let someone know the moon didn't have its own light"
    Well, I think a lunar eclipse might have let someone realize the earth was casting a shadow on the moon, and thus, the moon was just reflecting the sun's light.

  • @Spyros.ts13
    @Spyros.ts13 Год назад

    dear Doctor Tyson,
    which is the episode of Cosmos with the evolution of the eye?

  • @elck3
    @elck3 4 года назад +1

    Keep looking up!!!

  • @sumanthasaha7207
    @sumanthasaha7207 4 года назад

    4 days without new startalk video. Very difficult to pass the time 😎🇮🇳

  • @Jack_McKalling
    @Jack_McKalling 4 года назад +1

    I wonder what the limit is to how far the human eye can see. Of course we can see light from "lots" of lightyears away, but, what we're seeing is only the light that's already reached our eye's field of view, not the source of the light all that distance away. Is there a limit to the distance of an object we can see, if the speed of light were infinite?

  • @mmgibson1
    @mmgibson1 4 года назад

    Several of the US National Parks are now using less lighting at night so the sky is more visible. They are trying to use only the minimum of lighting around rest rooms or parking lots, and then it is targeted downward. There is a growing concern that as a society we use too much artificial lighting, both indoors and out, and it throws off our internal rhythm. I've often read about people in the past rising with the sun and using candle light when it got dark for a while, but it was very unusual for anybody to stay up as late as we do now.

  • @peterstanghellini393
    @peterstanghellini393 2 года назад

    The most stars I saw was in the desert. A couple times I was in California. I think once was vicinity 29 Palms. The sky was filled with stars. It was quite impressive. Saw a number of streaking flashes (shooting stars). Not sure if those were satellites or meteor shower. Pretty good show

  • @NewandFreeMe
    @NewandFreeMe 4 года назад

    Can you please share your thoughts on the event that will take place on Dec 21st-25th?

  • @alvarosuareztrabanco5400
    @alvarosuareztrabanco5400 4 года назад +3

    10:08
    loved that face

  • @gatoreight
    @gatoreight 4 года назад +2

    This is just amazing

  • @grrsss8335
    @grrsss8335 4 года назад +2

    there are still people today who think the moon is its own light: see flat earthers.

  • @marcoottina654
    @marcoottina654 4 года назад

    4:30 i hoped that Chuck have said: "Moonlight have steal the shine of all stars" ... XD

  • @alphacenturi8038
    @alphacenturi8038 3 года назад

    Hello Neil. May you please do a video on the empty universe. I say empty implying it is sparsely populated. When you do the video please explain to me what is your take of the energy that passes through the universe to us in various wavelengths from stars and galaxies. I am of the thinking that there is no empty space. There, from where we see nothing, there is something ( a brick, part of the house). In short what do you reffer to as an empty space ? You said it in one of your videos.

  • @jaxxonad619
    @jaxxonad619 4 года назад

    speaking of the moon, Something quite strange happened over here in Kuala Lumpur couple of day ago. it was a full moon that night but somehow, there was a shadow over one side like in the the gibbous phase, but the shadow was very transparent. the moon was still fully lit, but you could see a clear demarcation line between the full intensity moonlight and the slightly dimmer side...
    what could it have been?...

  • @viqneuman.5111
    @viqneuman.5111 4 года назад

    I was out in the country one night. I could see the Milky Way Galaxy. I couldn't believe it. Was literally the 'you are here' moment. Never saw that again.

  • @ElectrikNYCfunK
    @ElectrikNYCfunK 4 года назад

    Neil will you also be posting on the new Hyprr Space?!?!?!

  • @cececooke7684
    @cececooke7684 2 года назад

    I was on a ferry heading to Fraser Island in Australia when I saw the Milky Way. It was amazing for me since I live in South Florida with lots of lights and barely can see anything in the sky.

  • @dansandoval9330
    @dansandoval9330 4 года назад

    In Spanish we say "hay cincuenta estrellas" and one of my favorites "El cielo está tan estrellado que parece que se va a romper"

  • @matthewwriter9539
    @matthewwriter9539 4 года назад +1

    Could an antimatter blackhole exist? How would that be different from a regular blackhole?
    What would happen if a blackhole, of 6 solar masses, and an equal massive antimatter blackhole collided?

  • @nineball039
    @nineball039 4 года назад

    Years ago I read a bit by Isaac Asimov who penned that there are only about 6000 visible stars to the unaided eye. I found this astonishing but wondered if he meant individually discernable stars or the whole night sky. It had to be the former. After all, one can see the central band of the Milky Way and see way more than 6000 stars. Thanks for finally clarifying that bit Neil.
    So now if I look at the smallest object I can see (with my glasses) can I see way more than Avogadro's number of molecules?

  • @mattjenkins7216
    @mattjenkins7216 4 года назад +1

    Great subject!

  • @gabesegun7966
    @gabesegun7966 4 года назад

    It is one thing to know something it is a blessing to understand it.