Science - 7

Known Universe: The Fastest

Known Universe: The Fastest

Speed's the key to unlocking the mysteries of space, yet the faster we go, the stranger and more exotic the universe becomes. In the vast expanse of space, nothing matters more than speed. Whether we're venturing out to the farthest reaches of our...

7.29

SciShow: Infusion

SciShow: Infusion

Hank explains the power of solar energy and describes how it may fit into our diversified energy future. He also discusses the following topics: The power of epigenetics, which studies the factors that determine how much or whether some genes are expressed in...

9.08

Crash Course: Biology

Crash Course: Biology

And thus begins the most revolutionary biology course in history. Come and learn about covalent, ionic, and hydrogen bonds. What about electron orbitals, the octet rule, and what does it all have to do with a mad man named Gilbert Lewis? It's all...

8.78

Frontiers of Deep Space

Frontiers of Deep Space

Explore the revolution in our understanding of the nature of the universe and how it came to be. Scientists have further narrowed the search for a hypothetical particle that could be dark matter, the mysterious stuff that makes up 80 percent of all...

8.36

Violent Universe

Violent Universe

Take a breathtaking journey into the future, five billion years from now, to see the ultimate fate of the Solar System. This gem from HubbleCast showcases stunning Hubble imagery of the death throes of Sun-like stars. The wreckage of these dying stars form...

8.46

Known Universe: Decoding the Skies

Known Universe: Decoding the Skies

How our ancient forbearers decoded the night sky and built the foundations of civilization. Not with the help of ancient astronauts but through their own perseverance and innate intellect. Our ancestors' relationship with the heavens led to some of mankind's ancient discoveries and...

5.11

Known Universe: The Most Explosive

Known Universe: The Most Explosive

Scientists believe that our universe started with a colossal explosion called the Big Bang. That powerful blast created all the matter in the universe and laid the groundwork for every explosion since. From exploding stars to asteroid impacts, Known Universe: The Most Explosive...

7.22

Here Be Dragons

Here Be Dragons

Here Be Dragons is a video introduction to critical thinking. Most people fully accept paranormal and pseudoscientific claims without critique as they are promoted by the mass media. Here Be Dragons offers a toolbox for recognizing and understanding the dangers of pseudoscience, and...

5.53

Last Extinction

Last Extinction

Approximately 13,000 years after the mighty mammoth and 35 other groups of mammals vanished from North America, some scientists pose the controversial theory that a massive impact from space may have heralded their demise. For the past four decades, experts have been at...

8.13