Like a common cold or a cold sore, would it be possible to get a reinfection of COVID-19? Would we be able to build up long-term resistance to it?

In which Hank details the five scariest things that will likely happen because of climate change.

Did you know that your environment and lived experiences can actually affect your DNA? Welcome to the world of epigenetics! In this fun episode of SciShow, Hank & his clone Circus Hank explain the power of epigenetics, which studies the...

Amazing scientific discoveries aren't always made by renowned scientists! Here's a few examples of times ordinary people unlocked some incredible discoveries! Let's' check it out!

When you think "parasite," you might think of leeches or some nasty tape worm, but there are some that can live inside your very own cells.

Things can go wrong in scientific experiments sometimes, but when it comes to engineering, getting things wrong can be disastrous.

It took some time for us to realize it isn’t the best idea for scientists to experiment on themselves. But along the way, sometimes at the expense of the health of scientists, we have gained crucial insights into their areas of study.

In our last list of strange aircraft, we stuck to covering the weirdest jets to take to the sky, but there are plenty of other types of bizarre flying machines out there! In this episode, Hank will tell you about five other unlikely...

You might think most planes look the same, but here are five of the most bizarre aircraft that, no matter their appearance, still managed to fly.

Unless you saw the spider bite you, that swollen, bite-looking lesion on your arm is probably something else, and blaming it on an innocent 8-legged critter might do more harm than good. Hosted by: Stefan Chin

The environmental impact of the foods we eat can be tricky to track. But now, researchers in the UK have developed a system to estimate the impact of 57,000 food products in the UK and Ireland! And we are gaining insights into the...

SciShow explores a newly identified neurological condition, aphantasia, the inability to visualize things in your imagination, and gives tribute to Dr. Oliver Sacks, popular explorer of the human mind.

Hank addresses a highly requested topic - liquid fluoride thorium reactors - and tells us how LFTR might be the future of energy in ... China?

Bird parent's calls can change how their babies develop! And, do you learn faster when playing a game to benefit yourself or other people?

Lead is really useful when you add it to things like paint and gasoline. Problem is, it’s also poisonous. Hosted by: Hank Green

You might not think about the food in your freezer much, but those frozen fries are surprisingly worthy of pondering, given that they’re the end result of a pretty clever innovation.

A man walks in to a hospital super drunk... but claims he hasn't had a sip of alcohol. Join us today for SciShow medical mystery!

This week, researches published a genetic analysis of the 11,500-year-old remains of a baby found in Alaska, near where the first Americans crossed the Bering land bridge. That analysis has answered some lingering questions about human...

Earthquakes have the power to devastate entire communities—a little advanced notice could make a world of difference with an impending earthquake. So why can't they be predicted? Join Rose Bear Don't Walk for a new episode of SciShow,...

Fashion fads come and go—but did you know that some fashion trends are downright dangerous?

You would think that almost everyone has the same exact number of bones in their body, but that number is different, and changing, in everyone!

Earlier this week, a team of researchers announced that they’d made a discovery about how we inherit mitochondrial DNA from our parents that could change what we know about not only disease inheritance, but human history as a whole.

You Can "Catch" Alzheimer's Disease

People ask Google everything under the sun. One of the most commonly searched questions in the world is “What Is Love?” Allow us at SciShow to explain.