SciShow
The Real Reason the Sky is Blue
If someone (say, a small child) asks you why the sky is blue, you might dive into an explanation of Rayleigh scattering. But if you want to give them a way cooler explanation, you can tell them it's because of bacteria. Hosted by: Stefan...
SciShow
Permafrost Is Not What You Think It Is
If you've ever heard about things like mammoths being found in permafrost, you may have an image in your head of what that looks like. But you might be wrong! So let's talk about what permafrost really is, why it's so important, and why...
TED Talks
The best way to lower Earth’s temperature — fast | Daniel Zavala-Araiza
There's an invisible super-pollutant heating up the planet — but it's surprisingly easy to reduce, if we try. Revealing how methane contributes (way) more in the short term to global warming than carbon dioxide, chemical engineer Daniel...
SciShow
Exploring Uranus and Neptune
Join SciShow Space as we complete our tour of the Solar System planets with the ice giants, Uranus and Neptune.
MinutePhysics
How Do We Know What Air is Like on Other Planets?
How do we know what the air is like on planets we haven't visited? This video explains how to see air from 150 light years away. Thanks to NASA's James Webb Space Telescope project at the Space Telescope Science Institute for supporting...
SciShow
The Alien Storm That Ate Itself
From cyclones to snowstorms, Earth is home to some spectacular weather events. But they're nothing compared to what you can find on the other planets in our solar system. Magnetic tornadoes? Ammonia mushballs? Let's (not literally) dive...
SciShow
Something's Been Making Weird Pits in the Seafloor
For years, scientists couldn't solve the mystery of strange pits on the floor of the North Sea. Initially they blamed methane seeps, but it seems like the pits were actually made on porpoise.
TED Talks
TED: Meet methane, the invisible climate villain | Marcelo Mena
A landfill on fire doesn't only emit a horrid stench — it has devastating consequences for the environment, too. The culprit is methane, an often underestimated greenhouse gas produced in large part by food systems, organic waste and...
SciShow
We Finally Found a Green Use for Coal
One day, the world may partially run on clean hydrogen fuel. But a big barrier to that future is just how darn difficult it is to store hydrogen for later use. So one team of scientists have proposed making hydrogen "batteries" out of...
SciShow
The Future of the Search for Life
Astronomers have found more than 5,000 planets in the last three decades, but that’s not nearly as exciting as potentially coming across the first extraterrestrial creatures. And we may finally be in a position to make that discovery.
TED-Ed
TED-Ed: What's happening to Earth's core? | Shannon Odell
A hydrogen atom is traveling high within the outermost layer of Earth's atmosphere. This particular atom first entered the exosphere millions of years ago, but today it overcomes Earth's gravitational pull and escapes, joining the...
SciShow
Why Aliens Might Love Their Frozen Home
In the hunt for life beyond Earth, scientists shouldn't skip over frozen planets. In some cases, ice might actually help life evolve!
SciShow
The Hunt For Green Helium
Despite being a noble gas, helium has a carbon footprint. We haven't managed to find any helium reservoirs that don't also contain natural gas. But must they? Scientists and startups alike are on the hunt.
SciShow
This Molecule Has Saved Billions of Lives, How Do We Make It Without Killing Ourselves?
Ammonia is extremely useful to us as a crucial ingredient in fertilizers. But producing it also has a significant carbon footprint, which is why scientists have been on the hunt for a way to make ammonia production greener.
SciShow
Do-It-Yourself Photosynthesis Is Here!
Photosynthesis, the elegant process of making fuel from sunlight, might be the future of how we power, well, just about anything. Plants may have invented it, but humans are taking the model and really running with it, to make anything...
SciShow
Do Zombies Float or Sink?
If you’re trying to figure out where to plan on sheltering during the zombie apocalypse, it’s essential to know whether zombies sink or float!
SciShow
Astrobiology & the Search for Alien Life
Hank talks about astrobiology - the study of and search for life in the universe off Earth. Right now, the field has more questions than answers, but all they all seek to answer that one fundamental query: are we alone in the universe?
SciShow
3 World-Changing Biology Experiments
Hank tells us the stories of three experiments in biology that, with creativity and luck, changed science & the world with it in their work to solve the mysteries of the universe.
SciShow
7 Chilling Mysteries Still Unsolved by Scientists
There are still several fascinating mysteries of our universe unsolved by scientists even after decades and even centuries of research! Join Olivia Gordon for a new episode of SciShow and learn about these seven weird phenomena that...
SciShow
6 Mysteries Geologists Can't Solve
There are some geological areas on the planet that scientists still don't understand. For most things it's pretty clear—combine a volcanic eruption a dash of erosion, and boom, you’ve got a striking cliff! But not all the features on...
SciShow
Climate Change
In which Hank details the five scariest things that will likely happen because of climate change.
SciShow
Limnic Eruptions: When Lakes Explode
SciShow takes you inside a limnic eruption, a natural disaster that’s as deadly as it is rare.
SciShow
Why Some Frozen Lakes Catch Fire
Did you know that, despite their serene, picturesque appearance, some frozen lakes can catch fire? Why are climate scientists studying the explosive gas bubbles trapped in lake ice?