MinutePhysics
What is Sea Level
An oblate spheroid is a special case of an ellipsoid where two of the semi-principal axes are the same size.
MinutePhysics
TOP 10 REASONS Why We Know the Earth is Round
TOP 10 REASONS Why We Know the Earth is Round
MinuteEarth
Why The Ocean Needs Salt
Our oceans don’t technically contain salt, but the ions salt is made of play a critical role in planet-wide processes that make the Earth habitable.
SciShow
Why are Astronomers So Bad at Naming Things?
With star names like 2MASS J05551028+0724255, it might seem like astronomers are not so great at naming things. But if you know the code, these names can actually help you find the star in the sky.
SciShow
How Do You Find the Moon’s Best Picnic Spot?
Living on the moon won't be easy, but it might be worth taking a note from our ancestors, and setting up in caves
SciShow
Life on an 8-Hour Planet
Even if we find an earth-sized exoplanet, how can we be so sure that we're looking at earth 2.0? It might come down to how fast it's spinning.
SciShow
How Blocking the Sun Makes Mars Hotter
If we’re going to send people to Mars someday, we’re going to need to be very conscious of the challenges presented in this endeavor. And at the top of that list is the ferocious nature of dust on the barren planet.
PBS
When Giant Millipedes Reigned
This giant millipede was the largest known invertebrate to ever live on land. So how did it get so big??
PBS
How Earth's First, Unkillable Animals Saved the World
They have survived every catastrophe and every mass extinction event that nature has thrown at them. And by being the little, filter-feeding, water-cleaning creatures that they are, sponges may have saved the world.
Be Smart
Where On Earth Do You Weigh The Least?
You may have heard that a kilogram of feathers weighs the same as a kilogram of steel, but that all depends on where you weigh them. This video is all about the difference between mass and weight, and how weirdly awesome Earth’s gravity...
SciShow
The Southern Hemisphere is Colder, Stormier, and... Cleaner?
You'd think that the Northern and Southern Hemispheres would be basically symmetrical -- that since our planet is a ball, the climate, temperature, and weather patterns would be the same on top as on the bottom. But there are some...
SciShow
Coriolis Effect: IDTIMWYTIM
Does your toilet water drain differently than in the other hemisphere? Is it because of the Coriolis effect? Hank has some things to clarify about these questions, and more in this edition of I Don't Think It Means What You Think It Means.
SciShow
Why’d the Ocean Stop Getting Saltier?
If salty water is constantly spilling into the world’s oceans, does that mean they are getting saltier by the day?
SciShow
Did We Find Longitude Thanks To A...Clock?
The equator is a clear and accurate line around Earth that makes measuring latitude a precise science, but when it came to figuring out how to do that with longitude, British sailors were at a loss. Until they devised a competition....
SciShow
When Climate Change Threatens Climate Solutions | SciShow News
When Climate Change Threatens Climate Solutions | SciShow News
Be Smart
How Baby Sea Turtles Find Their Way Home
Find out how baby sea turtles find their way home after hatching!
SciShow
5 Things We Can Learn From Alaska
Science probably isn’t the first thing that pops into your head when you think about Alaska, but it has a lot to offer when it comes to learning about the world, from cold corals to our behavior.
SciShow
First Kisses and Spring!
Hank explores the science behind the first kiss -- and all the kisses that come after it -- and also sets you straight about the vernal equinox, what it is, and why this year's is special!
SciShow
Why’d the Ocean Stop Getting Saltier?
If salty water is constantly spilling into the world’s oceans, does that mean they are getting saltier by the day?
SciShow
Climate Change Could Be Taking the Ocean’s Breath Away
The Labrador Sea is also known as the ocean's lung, and there's evidence that it's in a lot of trouble.
SciShow
Can We Redirect Asteroids like in Armageddon? | SciShow News
If you think punching an asteroid to knock it off the course to Earth’s destruction is purely for science fiction, you might only be right a for a little longer! Plus, scientists are being thrown for a loop with the orbits of planets...
SciShow
New Surprises from the Asteroid Bennu - SciShow News
There’s nothing boring about Bennu! From its chemistry, size, shape, and spin to its extremely old age, it proves that even the smallest objects in the solar system have a bizarre and fascinating history.
SciShow
The Two Asteroids That Shouldn’t Be There
Space Clue: 203 Pompeja and 269 Justitia in the asteroid belt with evidence of being formed outside of it. But the real mystery is how they got there! And we again return to Ganymede with new evidence suggesting even more kinds of water...
SciShow
IDTIMWYTIM Equinox Stupid Latin
In this edition of IDTIMWYTIM, Hank explains why the common understanding of "equinox" is wrong, what the equinox actually is, and then rages a little against astronomers and their stupid confusing Latin terms.