SCIENCE

The Nile

Nile: Rivers of Life

The Nile

The Nile is the world’s longest river. From elephants and leopards to extreme kayakers and ancient wonders, its great length provides a lifeline for Africa’s wildest beasts and for some of the world’s most incredible cultures. Watch now.

When Whales Walked: Journeys in Deep Time

When Whales Walked: Journeys in Deep Time

When Whales Walked: Journeys in Deep Time

Discover the evolutionary secrets of some of the world’s most majestic creatures. From voracious crocodiles and acrobatic birds to stupendous whales and majestic elephants, WHEN WHALES WALKED follows top scientists on a global adventure as they follow clues from the fossil record and change what we thought we knew about the evolution of iconic beasts. Watch now.

Light Falls

Light Falls

Light Falls

Physicist Brian Greene uncovers how Albert Einstein developed his theory of relativity through this unique theatrical work that weaves together dramatic portrayals, state-of-the-art animation, innovative projections, and an original score.

American Spring Live: Connections

Nature

American Spring Live: Connections

Learn how plants and animals depend on each other to survive. See first-hand how climate change can break those connections, altering the timing of weather and plant growth, and disrupting the delicate relationships between plants and pollinators such as moths, bees and butterflies.

Do We Still Need the Clean Air Act?

EcoSense for Living

Do We Still Need the Clean Air Act?

Dr. Devra Davis, an environmental health expert and author, tells us how Donora, PA slowly awakened America's need for the Clean Air Act. Mom's Clean Air Force are mothers concerned about the effects of two different sources of air pollution. In Pennsylvania, parents guard their children's health against chemicals associated with fracking. In Orlando, we meet a mom engineer/artist who uses her paintings to express her concern about a nearby power plant. Don Anair of the Union of Concerned Scientists talks electric cars, evolving attitudes about carpools and rideshares, and whether or not car ownership is worth the price of admission.

Future Food

Ecosense for Living

Future Food

Dr. Katharine Wilkinson, the senior writer of DrawDown, tells us how much our food choices affect our health and climate change. In New Orleans, the Audubon Nature Society promotes an annual sustainable seafood dinner. "Bug Apetit!" explores serving up a better future. Take crickets, for instance! High in protein, they're hopping into popular culture in New York City and London.

Charles Graeber On Immunotherapy and a Paradigm Shift in Cancer Treatment

Great Conversations:

Charles Graeber On Immunotherapy and a Paradigm Shift in Cancer Treatment

New York Times bestselling author Charles Graeber discusses his book, The Breakthrough: Immunotherapy and the Race to Cure Cancer, that details revolutionary scientific research in immunotherapy, with Dr. Thomas Gajewski, who oversees the melanoma oncology clinic at the University of Chicago and leads the immunology and cancer program at the university's Comprehensive Cancer Center. The interview was recorded at the University of Louisville Kentucky Author Forum.

Mammoth Bones from Kentucky

Kentucky Life

Mammoth Bones from Kentucky

In the late 18th and early 19th century, Northern Kentucky was a hotbed of fossil discovery. Big Bone Lick State Historic Site is now located where many of those fossils were found, and is named for the salt springs and mineral deposits that attracted ancient animals to the area.

Einstein’s Quantum Riddle

NOVA

Einstein’s Quantum Riddle

Quantum entanglement is poised to revolutionize technology from networks to code breaking–but first we need to know it’s real. Join physicists as they capture light from across the universe in a bid to prove Einstein’s “spooky action at a distance.”

Pluto and Beyond

Nova

Pluto and Beyond

Since it explored Pluto in 2015, the New Horizons spacecraft has been zooming toward NASA’s most distant target yet. Join the mission team as the probe attempts to fly by Ultima Thule, an object 4 billion miles from Earth.