Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.
  • Home Home Home, current page.
  • Moments Moments Moments, current page.

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
neiltyson's profile
Neil deGrasse Tyson
Neil deGrasse Tyson
Neil deGrasse Tyson
Verified account
@neiltyson

Tweets

Neil deGrasse TysonVerified account

@neiltyson

Astrophysicist

New York City
haydenplanetarium.org/tyson/
Joined January 2009

Tweets

  • © 2018 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    Neil deGrasse Tyson‏Verified account @neiltyson 20 Mar 2017

    Happy March equinox, when day almost equals night. Atmospheric refraction hastens sunrise & delays sunset, adding to daylight

    3:28 AM - 20 Mar 2017
    • 14,616 Retweets
    • 37,323 Likes
    • Ashutosh Singh Aakarshita Tiwari TRARC605 Tess DeSha rhybeckah shennigan Federico Driussi Talicon industries Nick Archuleta
    424 replies 14,616 retweets 37,323 likes
      1. New conversation
      2. Lee Hadassin‏ @leehadassin 20 Mar 2017
        Replying to @neiltyson

        indeed refraction is about 34 arcminutes but another 16 arcminutes for radius of sun also adds to reason equilux occurs later.

        1 reply 0 retweets 9 likes
      3. Neil deGrasse Tyson‏Verified account @neiltyson 20 Mar 2017
        Replying to @leehadassin

        If you measure rise & set from a consistent spot, like the Sun’s center (which nobody does), then your extra “lux" goes away.

        3 replies 14 retweets 101 likes
      4. maxipoo‏ @eggbert420 20 Mar 2017
        Replying to @neiltyson

        I love you

        1 reply 0 retweets 7 likes
      5. maxipoo‏ @eggbert420 20 Mar 2017
        Replying to @eggbert420 @neiltyson

        I have been watching Cosmos: A space odyssey for the past 3 hours help

        0 replies 0 retweets 6 likes
      6. End of conversation
      1. New conversation
      2. Katya Kearney‏ @katyashot 20 Mar 2017
        Replying to @neiltyson

        Can you please run for President? There is a movement of scientists running for elected office....

        10 replies 9 retweets 119 likes
      3. Fat Melania's Lip‏ @DebbieGei 20 Mar 2017
        Replying to @katyashot @neiltyson

        be careful not all scientists are good. Some quite crappy,

        4 replies 0 retweets 14 likes
      4. J. K. Corbridge‏ @oakwisetoo 20 Mar 2017
        Replying to @DebbieGei

        - irrelevant comment.

        2 replies 0 retweets 3 likes
      5. Fat Melania's Lip‏ @DebbieGei 20 Mar 2017
        Replying to @oakwisetoo

        who the e.g. died and made you grand poobah of relevance

        0 replies 0 retweets 1 like
      6. End of conversation
      1. New conversation
      2. Frank In Las Vegas‏ @PapiElGuapo 20 Mar 2017
        Replying to @neiltyson

        pic.twitter.com/tdq2mnWQk7

        2 replies 4 retweets 20 likes
      3. Jesus Cortez‏ @Jes64LA 20 Mar 2017
        Replying to @PapiElGuapo

        pic.twitter.com/L6GJLagG1w

        0 replies 2 retweets 9 likes
      4. End of conversation
      1. Meytar‏ @MeytarDr 20 Mar 2017
        Replying to @neiltyson

        All this science man, what are you an astrophysicist or something?! 🌗

        0 replies 2 retweets 68 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. New conversation
      2. spooky papi  🎃‏ @TheSuperoger 20 Mar 2017
        Replying to @neiltyson

        I PREFER WINTER SOLSTICEpic.twitter.com/3qhLz80ELS

        1 reply 2 retweets 43 likes
      3. 1 more reply
      1. Robert(30 Days of Night)Deschain‏ @nfiztheoriginal 20 Mar 2017
        Replying to @neiltyson

        pic.twitter.com/Neu8sEtE33

        0 replies 0 retweets 44 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. buttЯess‏ @cockspit 20 Mar 2017
        Replying to @neiltyson

        this is poetry

        0 replies 0 retweets 27 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Homebrew G‏ @gcundiff 20 Mar 2017
        Replying to @neiltyson

        Now sounds like a good idea for daylight savings time. Just kidding, that idea continues to suck.

        0 replies 1 retweet 11 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. New conversation
      2. Joe Hanson‏Verified account @DrJoeHanson 20 Mar 2017
        Replying to @neiltyson

        You should probably also dispel that whole egg standing on end myth today!

        5 replies 2 retweets 16 likes
      3. 1 more reply
      1. New conversation
      2. St Peter‏ @stpeteyontweety 20 Mar 2017
        Replying to @neiltyson

        You could just have said "have a nice day" but no, you had to go and make us think

        1 reply 2 retweets 40 likes
      3. 2 more replies

    Loading seems to be taking a while.

    Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

      Promoted Tweet

      false

      • © 2018 Twitter
      • About
      • Help Center
      • Terms
      • Privacy policy
      • Cookies
      • Ads info