Are there ways to terraform Mars -- that is, make it habitable for humans? Some scientists think so. They have big plans, but they also face some big obstacles.

Paul Andersen explains the concept of coevolution. He begins with an analogy comparing the relationship of humans to technology with those of coevolving species. He then discriminates between coevolution and convergent evolution. He...

Paul Andersen discusses the defining characteristics of the members of Domain Eukarya. He starts with a brief description of the phylogeny of life on earth. He then discusses the major characteristics of eukaryotic cells. He explains...

Mount Everest is unquestionably the highest point on earth, but it doesn't always feel that way.

Join SciShow Space as we complete our tour of the Solar System planets with the ice giants, Uranus and Neptune.

Buckle up for a trip to the asteroid belt -- though it's not nearly as dangerous out there as you might think. But there's a LOT waiting to be discovered, including some crucial clues about the formation of the solar system itself.

The perfect balance of radioactive elements inside planets like ours might make it habitable, and researchers are challenging some ideas about how Mars is losing its water.

A shooting star crashes onto Earth and a hideous blob emerges. It creeps and leaps, it glides and slides. It's also unstoppable: no matter what you throw at it, it just re-grows and continues its rampage. The only way to save the planet...

Even cells can be selfish.

Many generations have felt they've reached the pinnacle of technological advancement. Yet, if you look back 100 years, the technologies we take for granted today would seem like impossible magic. So - will there be a point where we reach...

The technology we use to keep cool is heating the world in a vicious feedback cycle, so we need to improve it and use it less.

In this video Paul Andersen explains the important relationships that exist in ecosystems. He starts by delineating between organisms and their environment. He explains how food webs can be used to show energy and matter flow in a...

In which John Green investigates the dawn of human civilization. John looks into how people gave up hunting and gathering to become agriculturalists, and how that change has influenced the world we live in today. Also, there are some...

Paul Andersen explains the importance of biodiversity. He starts by describing how biodiversity can be species, genetic or ecosystem diversity. He explains the importance of keystone species in an environment and gives two examples;...

Squeaks and Mister Brown have a leaky faucet! Luckily this is a great chance to learn about how they can save water.



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Over its lifetime, the Earth has seen plenty of climate change. About 50 million years ago the planet experienced extreme cooling, and all from a little fern.

In this episode, Hank talks about Network solids and Carbon and how you can actually create a Diamond from plain old Carbon... well, YOU probably can't unless you own a bunch of elephants. It's a long story. BUT, within you will...

This video explores the mysterious mass extinction event that occurred 450 million years ago, potentially triggered by an Ice Age. It delves into the impact on marine life, with clues found in ancient rock formations in northern Africa.

We have a lot of water on Earth, but we also can't actually drink much of it... or use it for farming. That's because most of the water on Earth is saltwater. We humans, like a lot of living things, need freshwater to survive. In this...

Stars blowing up is a surprisingly common occurrence, but who would have thought to search the bottom of the ocean if you were trying to study them?!

In this video Paul Andersen explains how the gravitational field strength is directly related to the mass of the object and indirectly related to the square of the distance from the center of mass. The equation for gravitational field...

In this video Paul Andersen explains how various techniques have been used for years to collect seafood. Commercial fishing has led to overfishing in certain areas and species due to the tragedy of the commons. An explanation of...

Deep in the ocean, fluffy bits of organic matter fall like snow. But this marine snow isn’t just pretty; it’s an essential part of our ocean food webs and our global climate!

In this captivating talk, journey into the surprisingly colorful nights of the Amazon Rainforest, as artistic entomologist Leo Lanna and designer Lvcas Fiat introduce us to the shapeshifting wonder of a creature they've fallen in love...