There are a few theories that would suggest Jupiter's moon IO has an underground magma ocean. Hank Green explains in this episode of SciShow Space!

On any given day we're lied to from 10 to 200 times, and the clues to detect those lies can be subtle and counter-intuitive. Pamela Meyer, author of Liespotting, shows the manners and "hotspots" used by those trained to recognize...

Oceanographer Paul Snelgrove shares the results of a ten-year project with one goal: to take a census of all the life in the oceans. He shares amazing photos of some of the surprising finds of the Census of Marine Life.

Howcast - Learn how to light outdoor portraits from professional photographer Joe Sinnott in this Howcast photography tutorial.

Molten rock below the surface of the Earth. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract concepts and...

How Volcanic Eruptions Shape Earth explores changes in Earth's surface by explaining that new lands are formed as a result of volcanic eruptions.

Kristie Melass and Jim Fuderer, Neutral Buoyancy Laboratory divers, describe life as part of the underwater diving teams that help astronauts train for spacewalks. HWHAP Episode 146.

Doug Casey is the Executive Director of the Connecticut Commission for Educational Technology



He is the chief administrator for state's policy and advocacy arm for educational technology. He guides and oversees comprehensive...

Tressa Yellig, executive chef, and owner of Salt, Fire, and Time, a prepared foods grocery, and culinary education center, demonstrates how to make a Dungeness Crab and Green Garlic Quiche. Yellig uses fresh ingredients, including duck...