SciShow
Why Does It Take So Long to Get to Mercury?
On a cosmic scale, Mercury isn’t very far away, but it's incredibly hard to get there. Getting into orbit around it takes years of flybys in the solar system, but we're going to do it again!
TED Talks
Peter Ward: A theory of Earth's mass extinctions
Asteroid strikes get all the coverage, but "Medea Hypothesis" author Peter Ward argues that most of Earth's mass extinctions were caused by lowly bacteria. The culprit, a poison called hydrogen sulfide, may have an interesting...
TED Talks
Naomi Klein: Addicted to risk
Days before this talk, journalist Naomi Klein was on a boat in the Gulf of Mexico, looking at the catastrophic results of BP's risky pursuit of oil. Our societies have become addicted to extreme risk in finding new energy, new financial...
TED Talks
Alex Steffen: The shareable future of cities
How can cities help save the future? Alex Steffen shows some cool neighborhood-based green projects that expand our access to things we want and need -- while reducing the time we spend in cars.
TED Talks
TED: A new perspective on the journey to net-zero | Amina J. Mohammed
Climate action can be a vehicle to deliver dignity, opportunity and equality for all. UN Deputy Secretary-General Amina J. Mohammed invites us to reimagine what the journey to net-zero could look like if we invest in people's climate...
Be Smart
Nature's Living Fireworks
Nearly all life on Earth is ultimately powered by light. But many creatures have learned how to make their own. This week we investigate the beautiful phenomenon of bioluminescence. From blinking fireflies on summer nights to glowing...
PBS
Is the Moon in Majora's Mask a Black Hole?
It's easy to take things at face value in video games. But when we take a deeper dive into the physics in The Legend of Zelda: Majora's Mask, it seems that the "MOON" might be one of those things that isn't quite what it seems. Given its...
PBS
The Treasures of Trappist-1
Last week, seven earth-like planets were discovered orbiting a Red Dwarf star 39 light years away. Each one could be capable of supporting life.
TED Talks
Jason Clay: How big brands can help save biodiversity
Convince just 100 key companies to go sustainable, and WWF's Jason Clay says global markets will shift to protect the planet our consumption has already outgrown. Hear how his extraordinary roundtables are getting big brand rivals to...
SciShow
What Will the World Look Like, 2°C Warmer?
A world only 2°C warmer, or 3.6°F, would be one that is much different than the world we live in today, but what does that actually look like?
SciShow
There’s Hope in the Latest Climate Report
We recently got an important update from the IPCC, the definitive source on the climate crisis. And while there's not a ton of good news, there are some bits of hope if we can ramp up our actions now.
SciShow
The Hardest We've Ever Pushed Matter
Scientists have had to come up with some extreme ways to generate the extreme pressures needed to simulate the conditions at the cores of planets!
SciShow
Our Past Written in the Stars
Unfortunately, time machines don't exist, but there are other ways to learn about our sun's past.
SciShow
Weird Names Around the Solar System
Not all of the objects in the solar system are named after Greek and Roman gods -- some are named after literary figures, movie stars, and don't get us started on what people think Earth is really called.
TED Talks
Sara Seager: The search for planets beyond our solar system
Every star we see in the sky has at least one planet orbiting it, says astronomer Sara Seager. So what do we know about these exoplanets, and how can we find out more? Seager introduces her favorite set of exoplanets and shows new...
TED Talks
TED: Nature is everywhere -- we just need to learn to see it | emma Marris
How do you define "nature?" If we define it as that which is untouched by humans, then we won't have any left, says environmental writer emma Marris. She urges us to consider a new definition of nature -- one that includes not only...
SciShow
The Fastest Runaway Star in the Galaxy
Most stars orbit the center of the galaxy. Some stars don't. Learn what scientists think is going on, with Reid Reimers!
SciShow
How To Make a Mutant Flu
Hank dishes out updates on the mutant flu virus and the James Webb Space Telescope, and gives us some new bits about new exoplanets, secret space planes, and a study that shows that music evolves according to Darwin's rules.
SciShow
3 Mysteries Solved by Extraterrestrial Tsunamis
Earth isn't the only planet that gets rocked by giant tsunamis. In fact, giant waves on other planets have helped us solve a few mysteries about our solar system.
TED Talks
TED: Abundance is our future | Peter Diamandis
Onstage at TED2012, Peter Diamandis makes a case for optimism -- that we'll invent, innovate and create ways to solve the challenges that loom over us. "I’m not saying we don’t have our set of problems; we surely do. But ultimately, we...
Bozeman Science
LS4A - Evidence of Common Ancestry and Diversity
In this video Paul Andersen describes several types of evidence for common ancestry. This evidence is contained in the fossils, embryos and molecules of living organisms. Even though life on our planet is incredibly diverse there are...
SciShow
Earth’s Underwater Topography & The Recent Space Walk
We just mapped out 80% of our earth and gave the ISS a tuneup! Hank Green explains what is going on in this episode of SciShow Space News!
TED Talks
TED: A forgotten Space Age technology could change how we grow food | Lisa Dyson
We're heading for a world population of 10 billion people -- but what will we all eat? Lisa Dyson rediscovered an idea developed by NASA in the 1960s for deep-space travel, and it could be a key to reinventing how we grow food.
TED Talks
TED: To solve old problems, study new species | Alejandro Sanchez Alvarado
Nature is wonderfully abundant, diverse and mysterious -- but biological research today tends to focus on only seven species, including rats, chickens, fruit flies and us. We're studying an astonishingly narrow sliver of life, says...