How MLK influenced Star Trek

<p>For most people, Tylenol is nothing more than an ol' stand-by, over-the-counter pain reliever. Yet, as Ben, Noel and Max learn in today's episode -- this wasn't always the case. Today's episode takes the boys to 1980s Chicago, when a ghoulish series of still-unsolved murders r ... Show More

<p>Founding Father Benjamin Franklin was a man of many interests, but his endeavors were by no means limited to technical innovation, philosophy and politics. In fact, throughout his life he had a reputation as an irredeemable lech -- literally, in later years, a dirty old man -- ... Show More

<p>Do you have a favorite tree? In today's episode, Ben, Noel and Max head over to the famous college town of Athens, Georgia where -- legend has it -- one guy was so enamored with his childhood oak that he ultimately deeded it to itself. How much of the story is true? Can a tree ... Show More

September 8, 1966. For the first time, the USS Enterprise appears on screen. It is the premiere of a strange new futuristic TV show. Star Trek will introduce the world to a cast of characters that push the boundaries of TV. Why did NBC take a chance on a writer who had already on ... Show More

Feeling you belong to a group can be great - but it also has a darker side, leading us down an unhappy path of hatred and violence towards people with different identities and backgrounds.Dr Laurie Santos talks to Mina Cikara - whose homeland descended into a bloody civil war - a ... Show More

For the past year, Overheard has explored the journeys of photographers and scientists who are focusing a new lens on history. National Geographic presents In Conversation, a special podcast episode featuring explorer Tara Roberts, computer scientist Gloria Washington, and photog ... Show More

Humans last set foot on the Moon 50 years ago. Now we’re going back, but the way we explore space—and our relationship to it—has gone through some big changes. “Space is a vacation now… a status symbol,” Marina Koren explains to Adam Harris. The two staff writers discuss this new ... Show More

<p>Carl Sagan was the world's first mainstream media super scientist, capapble of breaking down complex ideas for the common folk. But what made him tick? Billions and billions of great ideas. Explore his life and legacy with Josh and Chuck in this classic episode.</p><p> </p> Le ... Show More

<p>As part of a super 70s push to get Earth to a seat at the table of the Galactic Federation (in case there is, in fact, such a thing), astronomer Carl Sagan oversaw an ambitious project to launch a compilation of Earth’s greatest hits into deep space.</p><p> </p> Learn more abo ... Show More

Ep 1: In one of the most tumultuous moments in American history, Martin Luther King Jr. travels to Memphis to address the issue of racial and economic injustice. With eloquent language and brilliant rhetoric, he creates a mosaic of the ongoing Civil Rights struggle, culminating w ... Show More

<p>History does not repeat itself, but it does rhyme, said Mark Twain.&nbsp;From the fall of the Roman Empire to the rise of the modern world: history ebbs and flows over the centuries, driven by great tides of economic, social, political, religious, and cultural change that shap ... Show More