We're enjoying the summer here in Montana, and to help celebrate we thought we'd put together a compilation of our favorite sun-related episodes from our past. Don't worry, you won't need sunglasses for this one!

We've collected all the episodes we've done over the years answering questions about water. Pour yourself a glass before diving into this watery compilation!

If you want to spend any amount of time in space, you'll have to make adjustments to your lifestyle. From what you eat, to how you go to the bathroom, to regular activities you're simply not allowed to do on the ISS, SciShow Space has...

You probably think the appendix is a useless organ left over from our evolutionary past, but it turns out it may be doing something important after all.

Back in the early days of neuroscience, we didn't study the animals you might expect to learn about how brain cells communicate.

SciShow shares the latest developments in science, this week including new insights into the evolution of giant sperm, and the discovery of a whole new order of animal.

Matthew Gaydos, producer of Animal Wonders, The Financial Diet, and Sexplanations, faces off against Hank Green! Watch them show off their knowledge of the birds and the bees, literally!

A researcher in China used the gene editing technique known as CRISPR to change the DNA of human embryos. Hank unpacks why this is being universally condemned by scientists.

Scientific discoveries, futurist Juan Enriquez notes, demand a shift in code, and our ability to thrive depends on our mastery of that code. Here, he applies this notion to the field of genomics.

Throughout human evolution, multiple versions of humans co-existed. Could we be mid-upgrade now? Juan Enriquez sweeps across time and space to bring us to the present moment -- and shows how technology is revealing evidence that suggests...

SARS-CoV-2 is super contagious, and researchers don’t yet know all the reasons why. But by comparing this new virus to the similar one that causes SARS, we’ve found a lot of promising leads that could help us figure out how to beat this...

We thought that we taught dogs how to play fetch, but some adorable wolf pups may have just proved us wrong. Also some plants may be immortal?

Warning: Contains talk of cannabis. CBD: Marijuana Without the High

Calling them "our bodies' own repair kits," Susan Solomon advocates research using lab-grown stem cells. By growing individual pluripotent stem cell lines, her team creates testbeds that could accelerate research into curing diseases --...

We can evolve bacteria, plants and animals -- futurist Juan enriquez asks: Is it ethical to evolve the human body? In a visionary talk that ranges from medieval prosthetics to present day neuroengineering and genetics, enriquez sorts out...

You know, it's probably best to just not put snow in your mouth regardless of color.

In Parkinson's disease, certain kinds of neurons die over time, but it might be possible to reprogram other types of cells in the brain to replace those lost ones.

This month, in a study that has the potential to change the way we think about death, scientists revealed that they successfully restored some processes in the brains of dead pigs -- at least partially. What did the study actually tell...

Imagine living with no significant human contact for years, even decades, in a cell the size of a small bathroom. This is the reality for those in long-term solitary confinement, a form of imprisonment regularly imposed in US prisons. In...

For some people, fava beans can be deadly. What is it about this little legume that makes it so?

Brittle stars are eyeless, brainless animals that spend their time hanging out in dark crevices of coral reefs. But despite all this, it seems that they can still see...using their skin!

Paul Andersen answers the following question: How do organisms grow and develop?

Happy New Years! Ring in the new year the right way....by learning all about alcohol! The Science of Hangovers 0:35 Does Alcohol Kill Brain Cells? 3:42 Does Alcohol Keep You Warm? 5:46 Why Does Alcohol Burn When You Drink It? 7:21 Why...

It sure seems like some plants really don't want you hiking through their woods, but maybe your immune system is just overreacting.