Mars’s moon, Phobos, is striped with grooves all across its surface. But if one theory about where they came from is true, does that mean this moon might be on its way out?

For thousands of years, sailors have been telling stories of a mysterious phenomenon called dead water. Even after scientists figured out why it happens, it still affects swimmers today.

We often think of the ocean’s tide as a simple rise and fall, connected to the motion of the Moon. But on any given shore, the reality is much more complex and oceanic scientists have realized recently that there’s another, more...

Let's learn all about the waves that we play in at the beach!

SciShow takes you on a tour of Canada's Bay of Fundy, home of the largest tidal range in the world.

SciShow takes you on a tour of Canada’s Bay of Fundy, home of the largest tidal range in the world.

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. Currency -- the bills and coins you carry in your wallet and in your bank account -- is founded on marketing, on...

Vivid dreams have gotten pretty common during the Covid-19 pandemic and there’s a good psychological reason for that.

Do you often lose things like your keys? Psychology can explain not only why it happens, but also some ways to combat that.

From problems with the moon, to the lumpiness of earth, sea levels aren't quite as exact as we have them figured out to be.

For thousands of years, sailors have been telling stories of a mysterious phenomenon called dead water. Even after scientists figured out why it happens, it still affects swimmers today.

After years of war, the world’s kingdoms have come to an agreement. Every five years, teams representing the elves, goblins, and treefolk will compete in a grand tournament of dragon jousting. You have the important job of recording the...

That asteroid the headlines have been warning people about isn't likely to actually hit us, and scientists might have solved a mystery that could save lives: the relationship between tides and earthquakes.

Think we're winning the battle against HIV? Maybe not, as the next wave of drug-resistant viruses arrives. In an eye-opening talk, TED Fellow Edsel Salvana describes the aggressive HIV subtype AE that's currently plaguing his home of the...

As small as Jupiter's moons are in comparison to the giant planet, they may actually have an important role to play in keeping each other warm, heating the moons enough to have liquid oceans!

In 1902, President Theodore Roosevelt legendarily spared the life of a black bear -- and prompted a plush toy craze for so-called "teddy bears." Writer Jon Mooallem digs into this toy story and asks us to consider how the tales we tell...

Today Phil explores the world of tides! What is the relationship between tides and gravity? How do planets and their moons become tidally locked? What would happen if you were 300km tall? Important questions.

Howcast -If you've collected every lost penny and rubbed every Buddha belly you could find to no avail, turn the tide of your misfortunes with a lucky charm of your own.

Learn how weather affects fishing from Captain Layne Wagner in this saltwater fishing video from Howcast.

Pair airlifted after rising tide traps them on rocks off Oregon coastSource: USCG Pacific Northwest

In this video, we investigate how to write the equation of a sine or cosine graph when given the an application situation.

Join Vincent and the sea rescue patrols as they launch a GPS-enabled bottle off the coast of Brittany. By studying the local currents and tides, they aim to send the bottle on a journey to England. Follow the bottle's path with...

Vincent travels to Mont Saint-Michel to test how to react in quicksand. With the help of specialist guide Didier Lavadoux, he explores whether you should stay immobile and if it's possible to escape on your own. Learn the techniques to...

Every spring, the beaches of Delaware Bay play host to one of the world’s wildest parties. Millions of prehistoric crabs (and hundreds of thousands of birds) converge here. These horseshoe crabs spend most of their lives in the ocean...