Understand Your World

Complexly is a nonprofit dedicated to creating trustworthy stuff that inspires curiosity and lowers barriers to knowledge-building. Founded in 2012 by Hank and John Green, we've published more than 10,000 educational videos across channels like Crash Course, SciShow, PBS Eons, and Bizarre Beasts. Today, our work reaches millions of learners each month, grounded in our belief that trustworthy, well-crafted information should be freely accessible to everyone.

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Latest Videos View All
  • The Infamous Baseball Card Story
    Complexly
    Complexly
    The Infamous Baseball Card Story
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  • Why You Should Get Your DNA Sequenced After You Die
    SciShow
    SciShow
    Why You Should Get Your DNA Sequenced After You Die
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  • Pins are buy 3 get 1 free!
    Bizarre Beasts
    Bizarre Beasts
    Pins are buy 3 get 1 free!
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  • From Blank Page to Outline!
    Study Hall
    Study Hall
    From Blank Page to Outline!
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Latest Podcast Episodes View All
  • 464: Becoming a Meditation Podcast
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    Dear Hank & John
    464: Becoming a Meditation Podcast
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  • 463: I’ve Signed More Books Than God
    Play
    Dear Hank & John
    463: I’ve Signed More Books Than God
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  • 462: Socialist Ants
    Play
    Dear Hank & John
    462: Socialist Ants
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  • 461: Fun Facts to Combat the Horrors (w/ MB Ramirez!)
    Play
    Dear Hank & John
    461: Fun Facts to Combat the Horrors (w/ MB Ramirez!)
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Explore Our Shows

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    SciShow
    SciShow explores the unexpected. The channel covers scientific topics in a fun, accessible way.
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    Crash Course
    Free, high-quality educational videos used by teachers, students, and learners of all kinds.
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    Bizarre Beasts
    Every month, Hank Green and Sarah Suta explore what makes an animal weird to us.
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    Ask Hank Anything
    Hank Green sits down with your favorite celebrities and answers the questions they’ve always been curious about.
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Announcements View All
  • Press
    August 31, 2026
    Complexly Launches Crash Course Creator Lab, a Free Media Literacy Project for High School Classrooms

    Crash Course announces an open-resource project that guides students and educators through every step of the video production process MISSOULA,…

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  • SciShow Producer Savannah directs a Deep Dive on the SciShow set.
    Announcement
    August 18, 2026
    SciShow Secures 2-year Grant from the Sloan Foundation to Continue Work on Major Projects

    Complexly Awarded $500,000 Grant in Continued Partnership with the Alfred P. Sloan Foundation for SciShow’s Residency Project, Deep Dives, and…

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  • Announcement
    August 1, 2026
    Response to Discussion about AI use in Ask Hank Anything

    Hello Complexly Community,  You may have seen the discussion about Hank using ChatGPT for research in a “Future Hank” segment…

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  • Announcement
    July 22, 2026
    SciShow awarded Carnegie Grant for Nuclear Education

    Complexly awarded $600,000 Grant from The Andrew Carnegie Foundation for SciShow series on Nuclear Issues MISSOULA, MT,  July 14, 2026…

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About Us

Built on Curiosity, Collaboration, and Care

A Complexly video is never the work of just one person. It’s shaped by researchers, writers, editors, hosts, artists, and fact checkers who bring care and expertise to every step. Together, that collaboration helps cultivate curiosity and build knowledge in more people, more ways, and more places.

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Good Information Is Worth it

As a nonprofit, we depend on the support of people who believe everyone deserves access to trustworthy educational content. Your contribution helps us keep our videos free for learners everywhere.

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