This week's SciShow news brings you discoveries involving two of the most exotic substances on Earth - the world's rarest element and the world's oldest water. Two great tastes that taste great together? Stay tuned to find out.

Though we probably won’t find a literal Atlantis beneath the sea, that doesn’t mean that a human settlement hasn’t ever been lost to the water. Meet Doggerland.

Lots of life on Earth can fluoresce, creating a beautiful neon world of camouflage, communication, and adaptation that is hidden from the human eye.

Hank talks about astrobiology - the study of and search for life in the universe off Earth. Right now, the field has more questions than answers, but all they all seek to answer that one fundamental query: are we alone in the universe?

We have plenty of exciting news on holes in the earth and holes in your face! One of them broke records and the other keeps you healthy.

Hank tells us the stories of three experiments in biology that, with creativity and luck, changed science & the world with it in their work to solve the mysteries of the universe.

Fat cells don't often receive praise in everyday life, but they probably deserve more credit, as they might be healing our wounds.

Potato spindle tuber disease wasn't a life-or-death situation, but it led to the discovery of viroids: infectious, replicating bits of RNA

Learn about the famous red hat wearing underwater explorer Jacques Cousteau! Hosted by: Hank Green

In which Hank celebrates the landing of the Mars Curiosity Rover, which, if you were following SciShow on Twitter, you know was pretty freaking cool. So here are the Top Five Coolest Things about the Mars Curiosity Rover!

You might have heard that one year in a dog’s life is equivalent to seven in a human’s. But it turns out that the real ratio is both higher AND lower—depending on your dog’s current age.

The cell nucleus is crucial to multicellular life, so you think science would have a good idea how it evolved. The truth is, we don't, but Scientists do have some theories, including invading giant viruses!

If you hear the word “baby-faced” you might picture a doe-eyed celebrity who never seems to age. But, really, you should be thinking of the axolotl. However, it is possible to transform these otherwise forever-babies, causing them to...

Chitons are constantly scraping their teeth on rocks to eat the algae off of them, but that means their teeth need to be pretty tough. And it turns out one species's teeth are the hardest, stiffest biominerals in any living thing we've...

Can scientists actually make discoveries by licking things? Believe it or not, they can. Join Hank Green and learn the surprising amount of discoveries made by scientists....and their tongues.

There are still several fascinating mysteries of our universe unsolved by scientists even after decades and even centuries of research! Join Olivia Gordon for a new episode of SciShow and learn about these seven weird phenomena that...

Sometimes science creates a mystery, and it can be very difficult to solve! Join Hank for a fun new episode of SciShow about five mysteries started and later solved by science. Let's go! Hosted by: Hank Green

You've seen your fruit get moldy, or maybe your bread products. Sometimes old meat gets a funky smell. But what is actually happening scientifically when your food goes bad? It's pretty interesting. Join Hank Green for a new episode of...

Let’s face it: humans stink! But that’s not always a bad thing - we use smells to interact with each other and navigate our lives. Hosted by: Hank Green

From mice that battle scorpions to microscopic moss piglets that can survive a solar storm, here are 6 of Earth’s most hardcore beings!

Brit Garner is here to give Hank a breakdown of the May 2019 preview of the IPBES report, and Jessi from Animal Wonders brings along Kizmit, the African Crested Porcupine.

There's a downside to the upside, and believe it or not, an upside to the downside. Here's why considering the worst case might lead to better outcomes. Hosted by: Hank Green (he/him)

You know about fossils, but what other secrets are lurking in the ground beneath our feet?

Home is where the heart is - and these frogs manage to make their homes in a variety of bizarre places, from cloud forests to wastelands. And sometimes solving the challenges of living in these places involves solutions that are...