Onstage at TED2012, Peter Diamandis makes a case for optimism -- that we'll invent, innovate and create ways to solve the challenges that loom over us. "I’m not saying we don’t have our set of problems; we surely do. But ultimately, we...

Modern technology can make us forget how cruel the ocean once was to seafarers. Even with these new technologies, some parts of the sea are still just plain dangerous. Here are a few places on Earth where ships have met the briny depths.

We just mapped out 80% of our earth and gave the ISS a tuneup! Hank Green explains what is going on in this episode of SciShow Space News!

Bath time's a great time to do experiments with water, and Squeaks wants to show you a great trick you can try out next time you're in the tub!

In 1912, a fossil collector discovered some strange bone fragments in the eerie, beautiful Cretaceous Bahariya rock formation of Egypt. Eventually, that handful of fossil fragments would reveal to scientists one of the strangest...

Filmmaker Penelope Jagessar Chaffer was curious about the chemicals she was exposed to while pregnant: Could they affect her unborn child? So she asked scientist Tyrone Hayes to brief her on one he studied closely: atrazine, a herbicide...

Traveling is extremely arduous for microscopic sperm -- think of a human trying to swim in a pool made ofother humans. We can compare the journey of a sperm to that of a sperm whale by calculating the Reynolds number, a prediction of how...

It's so obvious that it's practically proverbial: you can't unboil an egg. But actually, it turns out that you can -- sort of. Eleanor Nelsen explains the process by which mechanical energy can undo what thermal energy has done.

Nature is wonderfully abundant, diverse and mysterious -- but biological research today tends to focus on only seven species, including rats, chickens, fruit flies and us. We're studying an astonishingly narrow sliver of life, says...

Hydrologist Casey Ryan explains how he studies water on the Flathead Indian Reservation and Jessi from Animal Wonders brings in Huckleberry the beaver, who is much bigger than he use to be.

Hank delivers news of the future, with his rundown of the top space missions scheduled for 2014. Learn about upcoming launches to a nearby asteroid, a comet as it approaches the sun, and the first test flight of NASA's new Orion crew...

Hank shares the latest exciting findings from the Mars Science Laboratory, known to its friends as Curiosity. Learn what Curiosity has discovered about the giant Gale Crater, and what those developments mean for the prospects of ancient...

You might not think of a sea creature as helpful in the prevention of climate change, but sperm whales have been doing their part to cool the planet by doing what most animals do best: pooping.

Sometimes the hairs on the back of your neck raise up when you sense that danger might be near, but what if you were also able to bulk yourself up like a muscular balloon to fend off that danger? This fish, it turns out, can do exactly...

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!

Caviar or fruity ball? Whatever you like! Here’s a rundown of how to spherify your own edible bubbles and why they could help to reduce waste.

Water is essential to life. Yet in the eyes of the law, it remains largely unprotected -- leaving many communities without access to safe drinking water, says legal scholar Kelsey Leonard. In this powerful talk, she shows why granting...

There is one ocean creature that is so strong, it could punch its way out of most aquariums, and it's only 30 centimeters long!

In this whimsical talk and live demo, scientist Li Wei Tan shares the secrets of bubbles -- from their relentless pursuit of geometric perfection to their applications in medicine and shipping, where designers are creating more efficient...

We often think of the ocean as a pretty serene, lovely place to relax. But it turns out there's quite a racket going on under the waves, and some of the culprits are not the animals you'd expect!

How concerned are scientists about the Larson C ice shelf calving its most recent iceberg? Archeologists have also found new evidence that confirms earlier dates for the existence of ancient Australian humans.

Learn about the robots inspired by animals with Hank! Chapters View all ROBOTS ARE JUST MACHINES DESIGNED TO ACCOMPLISH ATASK 0:31 THERE'S A LOT MORE TO FLYING THAN JUST FLAPPING WINGS 1:08 MAPPING SYSTEMS TEND TO BE COMPLICATED,...

Raccoons are famous for "washing" their food, but this behavior, called dousing, isn't really about cleanliness.

Hank gives it to you straight about "anti-gravity technology" -- basically, it doesn't exist. But if you really want to hover, you have options!