sos-kcet.png

A Discovery That Might Rewrite the Story of Life As We Know It

Are we on the brink of a discovery that will rewrite the story of life as we know it? "Second Genesis" follows planetary scientist Carolyn Porco as she explores the scientific quest to find life beyond Earth, and makes the case for Saturn’s moon Enceladus — with its plumes of water vapor and evidence of hydrothermal vents in a liquid ocean — as the most promising place to look.

Get the free PBS App

Upcoming Airdates

Nova

Dog Tales

Dogs have long been dependable companions by our sides. But it wasn't always that way, and a look at their closest living relative, the wolf, makes it clear why. Researchers reveal how humans tamed fearsome canines over tens of thousands of years, and how modern dog intelligence and behaviors have made them indispensable companions.

  • 2020-02-17T06:00:00-08:00
    KCET-HD

Nova

Cat Tales

They may have stolen many hearts-and the internet-but cats can be perplexing pets. As much cuddly and playful as they are aloof and uncaring, they've often raised the question: Did humans ever really domesticate felines? And what more can science tell us about a relationship that predates history?

  • 2020-02-23T14:00:00-08:00
    KCET-HD
  • 2020-02-23T18:00:00-08:00
    KCET-HD
  • 2020-02-24T06:00:00-08:00
    KCET-HD

Nova

Mysteries of Sleep

From fruit flies to whales, virtually every animal sleeps. But why? Why do we need to spend nearly a third of our lives in such a vulnerable, defenseless state? Scientists are peering more deeply into the sleeping brain than ever before, discovering just how powerful sleep can be, playing a role in everything from memory retention and emotional regulation to removing waste from our brains. So why are we getting so little of it?

  • 2020-03-01T14:00:00-08:00
    KCET-HD
  • 2020-03-01T17:00:00-08:00
    KCET-HD

Nova

Secrets of the Forbidden City

Discover the ingenious engineering of Beijing's Forbidden City, the power center of imperial China for nearly 500 years. Discover how the design of this vast complex of palaces and temples enabled it to survive centuries of earthquake shocks.

  • 2020-03-08T15:00:00-07:00
    KCET-HD
  • 2020-03-08T18:00:00-07:00
    KCET-HD

Nova

Chinese Chariot Revealed

For over 1000 years, chariots thundered across China's battlefields-dominating warfare longer than anywhere else on earth. Now, a series of amazing archaeological findings enable a team of experts to reconstruct and test China's first super-weapon.

  • 2020-03-15T15:00:00-07:00
    KCET-HD
  • 2020-03-15T18:00:00-07:00
    KCET-HD
  • 2020-03-16T07:00:00-07:00
    KCET-HD