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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 8 Dec 2012

    .@airforcerogers: Why only one tree of life on Earth? // Early on, other "trees" may have been tastier to us than we to them.

    9:38 AM - 8 Dec 2012
    • 77 Retweets
    • 68 Likes
    • FireBeagle oso Lindy J. Andrei Zuulescu Deanna 猫 blake tahWooTderapmoC thomas Mendoza
    38 replies 77 retweets 68 likes
      1. New conversation
      2. TheoreticallyZombies‏ @TheoreticalZomB 8 Dec 2012
        Replying to @neiltyson

        Raise of hands who would want an awesome scientist like @NeilTyson in their #TheoreticalZombie Survival Crew?

        2 replies 0 retweets 1 like
      3. ShinsingumiVA‏ @shinsingumi 8 Dec 2012
        Replying to @TheoreticalZomB

        @TheoreticalZomB u always need a brain in the group

        0 replies 0 retweets 1 like
      4. End of conversation
      1. New conversation
      2. Kelly Pawlak‏ @KellyPawlak 9 Dec 2012
        Replying to @neiltyson

        @neiltyson @airforcerogers Really? I would think that lack of life producing circumstances would be to blame. Only 1 way to make life=1 tree

        1 reply 0 retweets 0 likes
      3. Kelly Pawlak‏ @KellyPawlak 9 Dec 2012
        Replying to @KellyPawlak

        @KellyPawlak @neiltyson @airforcerogers and by one way i mean the hydrothermal vents in the early on oceans

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. hiJACT‏ @Jean_PukePicard 8 Dec 2012
        Replying to @neiltyson

        @neiltyson @airforcerogers I prefer the Tree of Knowledge. Sometimes sweet,sometimes tart,but always educational!

        0 replies 0 retweets 0 likes
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      1. Kassil‏ @Xaosopher 8 Dec 2012
        Replying to @neiltyson

        @neiltyson @airforcerogers Wasn't there some talk of a 'shadow' biosphere that might be the result of a different start to life early on?

        0 replies 0 retweets 0 likes
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      1. Joshua Pierce PhD‏ @Caegn 8 Dec 2012
        Replying to @neiltyson

        @neiltyson @airforcerogers Random generation of life is so improbable that it's astronomically unlikely for two forms to arise at once.

        0 replies 0 retweets 0 likes
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      1. Fat Bunny Press‏ @FatBunnyPress 8 Dec 2012
        Replying to @neiltyson

        @neiltyson how's this for a holiday card? The #constellations as seen from NYC in March!pic.twitter.com/jgnov14c

        0 replies 0 retweets 0 likes
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      1. larry‏ @larryk130 8 Dec 2012
        Replying to @neiltyson

        @neiltyson do we have any evidence for non-dna "life" or if "life" started more than once?

        0 replies 0 retweets 0 likes
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      1. RowgirlVT‏ @RowGirlVT 8 Dec 2012
        Replying to @neiltyson

        @neiltyson I knew you for ur tweets but now have found #startalk #iminlove I do tho' believe I may laugh more than you #laughchallenge ;-)

        0 replies 0 retweets 0 likes
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      1. Laura @  📚‏ @MyopicBloom 8 Dec 2012
        Replying to @neiltyson

        @neiltyson @airforcerogers With the amt of gene flow btwn early organisms, more likely multiple trees may have fused?

        0 replies 0 retweets 0 likes
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      1. Rob Napier‏ @cocoaphony 8 Dec 2012
        Replying to @neiltyson

        @neiltyson @airforcerogers a big Q as we look for life elsewhere. If common out there, why only 1 root here? Tyson only answers for 1 area.

        0 replies 0 retweets 0 likes
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      1. Shawn Domagal-Goldman‏ @shawndgoldman 8 Dec 2012
        Replying to @neiltyson

        @neiltyson @airforcerogers Could also be that there were multiple trees, and only one (or a branch of one) survived a "forest fire."

        0 replies 0 retweets 0 likes
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      1. Greg MacNeill‏ @gregmacneill 8 Dec 2012
        Replying to @neiltyson

        @neiltyson In other words, other trees never took root...

        0 replies 0 retweets 0 likes
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