SciShow
Can an Equation Really Tell Us How Many Aliens Exist?
In 1961, the astronomer Frank Drake wrote down what is now known as the Drake Equation. It's so important to the culture surrounding the search for extraterrestrial life that scientists have carved it into the upcoming Europa Clipper...
SciShow
When Did We Start Getting Cavities?
You would think that without dentists and fluoride mouthwash, early humans would have terrible teeth. But tooth decay depends on access to sugars and starches -- meaning most early humans had decent teeth up until the Agricultural...
PBS
‘To Be A Jew Today’ examines modern, multifaceted faith and struggle
In Noah Feldman’s latest book, “To Be A Jew Today,” the Harvard Law professor turns his focus to his own faith in order to understand identity, politics and culture. Feldman sits down with Amna Nawaz to discuss Jews’ relationship to...
TED Talks
TED: How a sanctuary for self-expression can change lives | Reed J. Williams and Lindsay Morris
After bringing her son to a summer camp for gender-nonconforming children, photographer Lindsay Morris launched a project to share the campers' stories with the world. One of them, Reed J. Williams, is now a powerful advocate for...
TED Talks
TED: Why are women still taken less seriously than men? | Mary Ann Sieghart
Women are routinely underestimated, overlooked, interrupted, talked over or mistaken for someone more junior at the workplace. Author Mary Ann Sieghart calls this the "authority gap" — all the ways women are (still) taken less seriously...
TED Talks
TED: A reframing of masculinity, rooted in empathy | Gary Barker
Urging us to turn away from voices perpetuating harmful stereotypes, gender equality advocate Gary Barker shares three insights on fostering a culture of care, compassion and connection among men. "We are the most wired-to-care species...
TED Talks
TED: A comedian's take on how to save democracy | Jordan Klepper
Conversation is a battlefield with only one winner. Or is it? Comedian and author Jordan Klepper believes we can get better at talking to each other (and perhaps save democracy) by learning how to lose.
PBS
Eating disorders are affecting more adolescent boys: here’s why and what signs to look for
For years, eating disorders were thought to predominantly affect women and girls. But it’s estimated that 1 in 3 people with the condition is male, and that 10 million American boys and men will struggle with it at some point in their...
SciShow
The World’s Biggest Aircraft Can Fly for a Week
It's a bird, it's a plane, it's a... peach emoji? The Airlander 10 is the world's biggest currently operational aircraft, and though it won't be setting any speed records, it may hold the key to greener, more sustainable commercial and...
SciShow
Are Sharks Really Older Than the North Star?
If you've spent enough time on the internet, you may have stumbled upon the fact that sharks are older than Polaris, aka the North Star. But are they really? It turns out the truth is a little more complicated.
SciShow
This Simple Test Could Detect Half of All Cancers
Cancer is a complicated disease, and there's no simple blood test for early detection and screening to spot cancer in general. That might be changing thanks to LINE-1, a retrotransposon gene that doesn't do anything.
SciShow
What's Really Behind The Adderall Shortage?
You may have heard that there's an ongoing shortage of the medication Adderall. But there's a lot more going on here than you may expect, and the real culprit behind the shortage isn't what you might think.
PBS
Climate change causing a sense of despair? Here are some ways to combat it
This summer, millions of Americans are experiencing firsthand the effects of climate change, from triple-digit temperatures to wildfire smoke to bleached coral reefs in warming oceans. For some, growing concern about climate change can...
MinuteEarth
Ancient Humans Made Millions Of These - We Don’t Know Why
The Acheulean handaxe was the most common tool of early humans, but we still don’t know what the heck they used it for.
TED Talks
TED: The Encyclopedia of Invisibility — a home for lost stories | Tavares Strachan
Conceptual artist Tavares Strachan creates the kinds of projects that make you stop in your tracks, like a 4.5-ton block of Arctic ice he brought back to his birthplace in the Bahamas or a gold, Egyptian-inspired sculpture he launched...
TED Talks
TED: Regenerative living can restore a broken world | Paul Hawken
A frog and a mockingbird changed Paul Hawken's life, kindling a devotion to protect and restore nature. Now, as one of the world's preeminent environmentalists, he advocates for regeneration — a calling and action plan for the world to...
TED Talks
TED: How to make learning as addictive as social media | Luis von Ahn
When technologist Luis von Ahn was building the popular language-learning platform Duolingo, he faced a big problem: Could an app designed to teach you something ever compete with addictive platforms like Instagram and TikTok? He...
SciShow
Fukushima Is Releasing Its Nuclear Wastewater
More than a decade after the Fukushima Daiichi nuclear power plant disaster, its operators are dumping once-contaminated water into the Pacific Ocean. Is that OK?
SciShow
Why Space is the Place For Halloween Lovers | Compilation
In honor of the spookiest time of year, let's take a look at the spookiest-named things in the cosmos.
SciShow
A Big Bang Beginner’s Guide | Compilation
While there's still a lot that astrophysicists don't know about the Big Bang, there are some things we do know. So today, let's get caught up on the Big Bang basics.
SciShow
How Many Suns Can One Planet Have?
Earth and the other seven planets in our solar system have only one star: the Sun. Years ago, astronomers found the first exoplanet that had two stars. They also found one with three stars. And four. Just how many stars can one planet have?
SciShow
This Planet is Only Half Covered in Lava
There are a lot of weird exoplanets out there, like 55 Cancri e (aka Janssen), which is probably half covered in lava. But the half that's covered in lava might not be quite the half you're thinking of.
SciShow
Why Hairworms Don’t Have Hair
Hairworms, sometimes called horsehair or Gordian worms, are mind-controlling parasites with a twist. A genetic study found these nematomorph worms are missing 30% of their genome, and we don't understand how they live without genes for...
PBS
Why Do You Remember The Past But Not The Future?
The laws of physics don’t specify an arrow of time - they don’t distinguish the past from the future. The equations we use to describe how things evolve forward in time also perfectly describe their evolution backwards in time. So the...