TED-Ed
TED-ED: How plants tell time - Dasha Savage
Morning glories unfurl their petals like clockwork in the early morning. A closing white waterlily signals that it's late afternoon. And moon flowers, as their name suggests, only bloom under the night sky. What gives plants this innate...
SciShow
Apocalypse? How?!
Hank debunks several apocalypse theories that predict Earth's demise in 2012.
SciShow
The Gamma Ray Burst of 775
About 1200 years ago, Earth may have experienced one of the rarest and most powerful cosmic events a planet can be exposed to: a gamma-ray burst. If it did, well, let's just say that we, as living things on Earth, are lucky it wasn't worse.
TED-Ed
TED-ED: The motion of the ocean - Sasha Wright
The constant motion of our oceans represents a vast and complicated system involving many different drivers. Sasha Wright explains the physics behind one of those drivers -- the concentration gradient -- and illustrates how our oceans...
SciShow
NASA Needs Astronauts!
Learn about what might be one of the most important exoplanets we've discovered yet, and what you need to apply to become an astronaut!
TED Talks
TED: What I learned from going blind in space | Chris Hadfield
There's an astronaut saying: In space, “there is no problem so bad that you can’t make it worse.” So how do you deal with the complexity, the sheer pressure, of dealing with dangerous and scary situations? Retired colonel Chris Hadfield...
SciShow
What If the Earth Stopped Spinning?
SciShow Space has a disaster movie pitch for Hollywood: what would happen if the earth stopped spinning?
Bozeman Science
Gravitational Mass
In this video Paul Andersen explains how the gravitational mass is a measure of the force on an object in a gravitational field. The gravitational mass is based on the amount of material in an object and can be measured to a standard kg...
TED Talks
Phil Plait: The secret to scientific discoveries? Making mistakes
Phil Plait was on a Hubble Space Telescope team of astronomers who thought they may have captured the first direct photo of an exoplanet ever taken. But did the evidence actually support that? Follow along as Plait shows how science...
TED-Ed
TED-ED: When will the next mass extinction occur? - Borths, D'Emic, and Pritchard
About 66 million years ago, a terrible extinction event wiped out the dinosaurs. But it wasn't the only event of this kind -- extinctions of various severity have occurred throughout the Earth's history -- and are still happening all...
Bozeman Science
Gravitational Force
In this video Paul Andersen explains how an object with mass placed in a gravitational field experiences a gravitational force. On the Earth this gravitational force is known as weight. The gravitational force is equal to the product of...
Bozeman Science
The Three Domains of Life
Paul Andersen starts with a brief description of the history of life. He then discusses the seven characteristics of life and why viruses are not alive. He then describes the three domains in the current classification system and...
SciShow
World’s Most Asked Questions How Old is Earth
People ask Google everything under the sun. One of the most commonly searched questions in the world is “How old is Earth?” SciShow has the answer!
SciShow
Venomous Mammals, Sensory Receptors & the Moon's True Origin Story
Hank describes to us some news stories that illustrate how science is continually changing the things we think we "know" - from the status of various animals species, to the way our senses work and even where the Moon came from -...
SciShow
Mind the (Solar System's) Gap
Giant disks around baby stars filled with gas and dust provide the material to make all sorts of planets, and new evidence proves that our solar system’s had a massive gap in it! And the water vapor in Jupiter’s moon, Europa, might not...
SciShow
Meet the Milky Way's Last Big Meal: The Sausage Galaxy
Our Milky Way Galaxy once dined on the Sausage Galaxy, and Jupiter's auroras seem to be heavily influenced by one of its moons. It's a galaxy-eat-galaxy kind of universe out there!
SciShow
Photosynthesis WITHOUT THE SUN
Plants need light to survive. But apparently, that doesn't have to be sunlight.
MinutePhysics
Gravitational Waves Explained Using Stick Figures
This video is about gravitational waves in the weak field limit as discovered by the LIGO collaboration, explained by parallels to electromagnetic radiation, sound waves, water waves, etc. I want to see Cat LIGO ASAP!
SciShow
Could Solar Panels in Space Solve all Our Energy Needs?
We need more solutions for our energy needs, and one idea is straight out of science fiction: Solar panels, in space.
TED Talks
TED: My year reading a book from every country in the world | Ann Morgan
Ann Morgan considered herself well read -- until she discovered the "massive blindspot" on her bookshelf. Amid a multitude of english and American authors, there were very few books from beyond the english-speaking world. So she set an...
SciShow
3 Unexpected Effects of Plastic Pollution
You probably already knew that plastic can be bad, but scientists have taken a closer look, and found out it can be bad in surprising ways.
SciShow
World's Most Asked Questions Ten of YOUR Most Asked Questions!
SciShow answers ten of the most asked questions by YOU, our viewers, in the past month -- from “What is new car smell?” to “What would happen if you drilled a hole through the planet?”
TED Talks
Katharine Wilkinson: How empowering women and girls can help stop global warming
If we really want to address climate change, we need to make gender equity a reality, says writer and environmentalist Katharine Wilkinson. As part of Project Drawdown, Wilkinson has helped scour humanity's wisdom for solutions to draw...