Complexly

a cutout of a photo of Brennan with a hand-drawn wizard costume.

Brennan Lee Mulligan holding an orange peanut m&m pointing toward the camera

Brennan Lee Mulligan mid-laugh with eyes full of bewilderment

Hank Green points out features of a shell he gifted to Brennan Lee Mulligan on set.

The first guest on Ask Hank Anything is @brennanleemulligan.bsky.social. In classic Brennan fashion, there will be snacks, bird facts, and good old-fashioned friendship in this episode. If you’re curious how long you could live eating only candy, you should tune in Jan 28th at youtube.com/complexly

Science is our attempt to become less wrong over time. And in honor of Crash Course Scientific Thinking, we put it on a shirt! Get yours at complexly.info/ccsci

Jaida Elcock and Dr. Feng Zheng pose for a photo during their interview.

Jaida Elcock dressed in lab gear giving an expression that says "can you believe this is happening?"

Dr. Zheng and Jaida engrossed in conversation about the specifics of the lab work.

Dr. Zheng showing off how some of the lab equipment works.

First stop on our Field Trip tour is Dr. Feng Zhang's lab at the Broad Institute.

You may already be familiar with Dr. Zhang’s work if you’ve ever heard of CRISPR… but how do you follow up a hit like that?

That’s a story big enough to tell in person.
youtu.be/_UimlaolxiA?...

YouTube video by CrashCourse Introduction to Cognitive Bias: Crash Course Scientific Thinking #1

What is science? And why do we need it? In this episode of Crash Course Scientific Thinking with host @hankgreen.bsky.social, we explore how cognitive bias shapes the way we think about the world, and how scientific thinking can help us overcome it. youtu.be/d2r7Bk1NlgU

Thank you for the reminder, and apologies for not including alt text on this post. The setting has now been switched on so we can avoid this mistake in the future.

YouTube video by Study Hall Hank Green’s College Journey: How Curiosity Became a Career

🚨New College Journey featuring @hankgreen.bsky.social!🚨

What do you major in to become a YouTuber/best-selling author/comedian/vertical video sensation/science communicator/comedian/entrepreneur?

Biochemistry, of course!

Check out his interview with Joss Fong here: youtu.be/ixmyj_GMlCE

This season of Ask Hank Anything will be one for the books! Subscribe at youtube.com/complexly and watch the first episode on January 28th!

P.S. Complexly Newsletter subscribers are going to find out who the first guest is next week! Are you signed up? complexly.info/askhankemails

We're hiring a producer! Crash Course producers use strong communication & leadership skills to generate a unique look and feel for various Crash Course series. They should be adept at troubleshooting common production-related obstacles as they arise. Learn more at complexly.com/jobs. Apply by 1/21.

YouTube video by CrashCourse Crash Course Scientific Thinking Preview

Hank Green will be lending his passion for science to the Crash Course screen as host of Crash Course Scientific Thinking. @hankgreen.bsky.social will be joined by special correspondent Sage "The Bad Naturalist" to help us understand foundational principles of scientific thought youtu.be/Y45KrixWRNg

We have a 2026 challenge for you:

Try a college course and complete 1 assignment.

Step 1: Join a Study Hall online course for $25. Try it for up to 10 days and if you decide its not for you, get a full refund!

Or... CHALLENGE yourself to complete the course! If you fail, NOTHING happens.

YouTube video by Mythical Kitchen Hank Green Eats 100 Years Of Food Science

Watch as @hankgreen.bsky.social and AHA Season 2 guest Mythical Chef Josh eat their way through 100 years of food innovation! youtu.be/HGiYMH8AUwU

A second season of Ask Hank Anything is coming soon! www.youtube.com/watch?v=eG54...

Picking up some Complexly gifts this holiday season?

To give your order the best chance of arriving before December 25th, we recommend placing your order no later than today!

More info about our shipping deadlines can be found at Complexly.store.

Something doesn't quite add up about the tale of Archimedes... youtu.be/A9s8qjqxI2c?...

a drawing of Archimedes' screw, half a painting of Archimedes

half a painting of Archimedes, a painting of Archimedes' death, The History Show color palate, "Seldom Told Stories" Scrawled on a notebook paper.

A drawing of Archimedes in the bath, The History Show logo, part of a map of Syracuse.

Half a map of Syracuse, A bust of Archimedes, the front and back of Archimedes' bronze coin.

Did Archimedes really run through the streets naked, shouting Eureka? RJ unpacks it all on The History Show tomorrow!

Savannah poses for a picture in the SciShow shirt that they designed for our handmade holidays merch!

If you love SciShow, get a handmade shirt! It was designed by host, producer, model, and talented artist Savannah! complexly.store

Sarah Suta rocks the new handmade holidays edition bizarre beasts tshirt.

For a limited time, you can get this Bizarre Beasts shirt! Our very own fashion icon, Sarah, hand-made the design featured on the front! ⁠
⁠
Grab yours at complexly.store before Dec. 8th if you want to be the weirdest animal at your family's holiday festivities!

We're not doing a 2026 calendar, but I can let you know that we're working on restocking loupes.

FIVE MINUTES (for real this time)

Join us at youtube.com/complexly in a couple hours for the premiere of a new episode of The History Show! We'll be live in the chat as we uncover the story of the "Dancing Plague of Strasbourg"

If you want to know the context behind these slides, you'll have to join us in The Learner Zone later today for a Powerpoint Party!

Find out how you can join the Learner Zone at Complexly.store/learnerzone

The Danc-- A painting of people dancing in the streets of 16th-century Strasbourg

cing, "Seldom Told Stories" color palette for the show Photo of Maison des Tanneurs in Strasbourg city center.

Hand-drawn map of Strasbourg, The History Show logo, Half of the Quaternion Eagle an emblem of the Holy Roman Empire.

Half of the Quaternion Eagle, an emblem of the Holy Roman Empire, "Plague," a black & white drawing of a group of people dancing with various onlookers surrounding them.

This week, RJ takes us all the way back to 16th-century France, where a plague of dancing took over the city of Strasbourg.

Watch along with the Complexly team as part of the Learn-a-thon on Friday, November 14th at youtube.com/complexly

Poster for our "Escape the Lab" SciShow TTRPG game, streaming live at youtube.com/scishow Saturday, November 15th at 10:00 AM PT.

Poster for our Science Riff-Along streaming live from our exclusive supporter discord, Thursday, November 20th, at 10:00 am PT.

We are counting the seconds until we get to spend some time with y'all during the 2026 Learn-a-thon!

Please join us Saturday, November 15th, for a Complexly team TTRPG on the SciShow channel, and Thursday, November 20th, for a science riff off in our donor-exclusive Discord "The Learner Zone!"

Complexly is truly one of the best educational companies out there today. If you've ever watched SciShow, Crash Course, Eons, or any of their other productions, you know how valuable they are as a learning resource. Join in the fun of this year's Learn-a-thon and support free educational content!

During this year's Learn-a-thon, we have new, exclusive products available at complexlylearnathon.com!

Every purchase you make supports our mission of inspiring curiosity and lowering barriers to knowledge-building.

Visit complexlylearnathon.com to check out these exclusive items!

Mark your calendar for tomorrow at 4 pm MT and hop over to the livestream on the @complexly.bsky.social YouTube channel to learn how Sound Designer Callie Dishman edits and mixes the audio for Complexly podcasts and videos, featuring a sample specially recorded for the Learn-a-thon!

D&D with the complexly staff? Let's goooo!!

There's a lot of useful stuff here too!

It’s time for the 2026 Complexly Learn-a-thon!

We’re so excited to learn with you over the next few weeks. Make sure you check out our last post for the full schedule of events, donate to join the exclusive "Leaner Zone" donor discord, and help us show the world that good information is worth it!

The Complexly Learn-a-thon starts today, and we have three weeks full of fun events for you!

For more information about the events, the Learn-a-thon-exclusive merchandise, and how you can hang out in "The Learner Zone", visit complexlylearnathon.com!

Yo ho ho pirates! The story of Zheng Yi Sao, aka the Pirate Queen, is up now at youtu.be/OsmNyKScGvg!