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neiltyson's profile
Neil deGrasse Tyson
Neil deGrasse Tyson
Neil deGrasse Tyson
Verified account
@neiltyson

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Neil deGrasse TysonVerified account

@neiltyson

Astrophysicist

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

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    Neil deGrasse Tyson‏Verified account @neiltyson 28 Nov 2016

    Don’t know those calculations. But life arose on Earth in less than 200M years. That’s the fact to reckon.

    9:06 AM - 28 Nov 2016
    • 37 Retweets
    • 179 Likes
    • 🇨🇦Crystal ☮️❤️🌎 ||-// Autumn ‎❛ o ˂̵✧ MB Ala Bennani seisonoio ryⓋπ Angie Leo
    7 replies 37 retweets 179 likes
      1. New conversation
      2. Nikita Sensei‏ @NikitaVlogger 28 Nov 2016
        Replying to @neiltyson

        how do you know it's less than 200? Why not 250 or 300?

        1 reply 0 retweets 3 likes
      3. StudentStrange‏ @hankymcspankies 1 Dec 2016
        Replying to @NikitaVlogger @neiltyson

        because carbon dating allows us to determine the approx. age of the oldest fossils on earth. So far.

        1 reply 0 retweets 5 likes
      4. Ryan Salem‏ @RyanGSalem 3 Dec 2016
        Replying to @hankymcspankies @NikitaVlogger @neiltyson

        actually we rely on radioactive isotope dating, as carbon dating can't go that far back!

        0 replies 0 retweets 9 likes
      5. End of conversation
      1. New conversation
      2. Art Hill‏ @ArthurRHill3 29 Nov 2016
        Replying to @neiltyson

        :calling it a fact to anybody who knows something is really laughable u might be respected if you used the term theory

        1 reply 0 retweets 2 likes
      3. Nobody of Consequence‏ @AGuyInOKC 30 Nov 2016
        Replying to @ArthurRHill3 @neiltyson

        Calling it "conjecture" would make you the joke of >99% of scientists. "Theory" in science ~ "fact".

        2 replies 0 retweets 7 likes
      4. Art Hill‏ @ArthurRHill3 30 Nov 2016
        Replying to @AGuyInOKC @neiltyson

        Nice math too bad it's wrong & so are you,( ~ does not mean =). ~=fool!

        3 replies 0 retweets 1 like
      5. Nobody of Consequence‏ @AGuyInOKC 30 Nov 2016
        Replying to @ArthurRHill3 @neiltyson

        Limit of 140 characters... In science vocabulary, "theory" is regarded as roughly the same as "fact".

        1 reply 0 retweets 5 likes
      6. 1 more reply
      1. Dr. Ass Chips‏ @Embraceape 28 Nov 2016
        Replying to @neiltyson

        the isotope we measure decay rate is influenced by solar events over 200mil. I reckon you be 3 to 8% full of crap

        0 replies 0 retweets 1 like
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      1. New conversation
      2. Samad  🌎‏ @Some_odd 28 Nov 2016
        Replying to @neiltyson

        in your opinion, why do you think we haven't been able to replicate abiogenesis in a lab?

        1 reply 0 retweets 1 like
      3. 2 more replies
      1. FaJeld‏ @mikaylafjeld 11 Jan 2017
        Replying to @neiltyson

        But how can you prove that Earth--or any part of the universe, is that old?

        0 replies 0 retweets 0 likes
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      1. Lori Cannon‏ @LoriEllenCanno2 2 Dec 2016
        Replying to @neiltyson

        that's just an eyeblink in earths 4.5 billion yr old planet 🌎🌍🌏

        0 replies 0 retweets 0 likes
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      1. Tyrone Black‏ @tyroneblack365a 2 Dec 2016
        Replying to @neiltyson

        interesting to know that the human species is that young

        0 replies 0 retweets 0 likes
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