Follow Sam Harris, Sean Carroll and Matthew Lieberman: @SamHarrisOrg, @seanmcarroll, and @social_brains.

Rather than identifying “Science Kardashians”—those who are, as Hall put it, “famous for being famous”—the top 50 list reveals that a majority of the science Twitter stars spend much, if not all, of their time on science communication. For them, Twitter popularity can amplify their efforts in public outreach. A case in point is Neil deGrasse Tyson, director of the Hayden Planetarium in New York City and host of the science TV show Cosmos: A Spacetime Odyssey. With more than 2.4 million followers and fewer than 200 citations, the astrophysicist is undoubtedly the top-ranking celebrity scientist on Twitter—and has the highest K-index of anyone on the list. Yet few would consider his Twitter fame unwarranted. [ScienceMag.com]


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