“Homo Techno” features stories—including that of a paralyzed former gang member who received brain implants allowing him to move a robotic arm by pure thought—that prompt Lightman to think about how advances in science and technology are causing us to evolve into a new species, Homo Techno, part human and part machine. What essential qualities will we want to preserve? Curiosity? Anger? Love?

“The Big & The Small” dramatizes the fact that humans are almost exactly the same distance—in terms of powers of ten—between an atom and a star. But where do we fit in the moral universe? Alan Lightman speaks with an advanced android and then a rabbi, a bio-ethicist, and the Dalai Lama about whether such a being could achieve consciousness and whether we could unplug her without asking permission.

“The Stars & The Osprey” begins with Lightman's late-night experience alone on the ocean when he felt connected to the stars and ends with a memorable eye-to-eye encounter with a wild creature. Alan attempts to reconcile these transcendent experiences with the material world of atoms and molecules. Can science explain such experiences in terms of the brain? Are we humans nothing but matter?

This film marks the 100th anniversary of the discovery of King Tutankhamun's tomb and is a journey of exploration for Egyptian co-hosts Yasmin El Shazly and Mahmoud Rashad into the mysteries and unanswered questions about the boy king's life, his infamous father’s religious revolution, and those advising him as he takes the throne in one of the most tumultuous periods of Egyptian history.

NOVA: Zero to Infinity takes a look at how the mathematical concepts of zero and infinity have been invented and re-invented by different cultures over thousands of years.

NOVA presents the dramatic story of NASA’s James Webb Space Telescope and the quest to peer deeper back in time than ever before in the hope of answering some of astronomy’s biggest questions.

Join Apollo 11 on its historic journey. The film seamlessly blends mission audio featuring conversations among Neil Armstrong, Buzz Aldrin and Michael Collins with new footage, NASA archive and stunning CGI to recreate the first moon landing.

Dogs have long been dependable companions by our sides. But it wasn't always that way.  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.

Follow the dramatic personal journey of Hugh Herr, a biophysicist working to create brain-controlled robotic limbs. At age 17, Herr’s legs were amputated after a climbing accident. Frustrated by the crude prosthetic limbs he was given, Herr set out to remedy their design, leading him to a career as an inventor of innovative prosthetic devices.

A team of intrepid paleontologists discovers that dinosaurs thrived in the unlikeliest of places—the cold and dark of winter in the Arctic Circle. How did they survive year-round and raise their young in frigid and dark winter conditions?