We are the generation of human beings that are going to know whether or not we're alone in the universe. This episode explores the search of exoplanets, from ancient Greek philosophers to the discoveries made possible with the Kepler Telescope. Unbelievable new worlds, planets made of diamond, planets of raining glass, worlds in collision, some plunging into stars, and others that just might harbor life.
Thanks to today's planet hunters, our views of the universe and of our place in it are undergoing one of the greatest revolutions in scientific history.

A Good American tells the story of the best code-breaker the USA ever had and how he and a small team within NSA created a surveillance tool that could pick up any electronic signal on earth, filter it for targets and render results in real-time while keeping the privacy. The tool was perfect - except for one thing: it was way too cheap. Therefore NSA leadership, who had fallen into the hands of industry, dumped it - three weeks prior to 9/11.
This is the story of former Technical director of NSA, Bill Binney, and a program called ThinThread.

Well-known fans celebrate Stevie Wonder and his music by selecting some of his best-loved songs. Contributors include actor Martin Freeman, singers Alexander O'Neal, James Morrison, Beverley Knight and Corinne Bailey Rae, Gillian Gilbert and Stephen Morris, DJs Ana Matronic, Trevor Nelson and Norman Jay, journalist Sian Pattenden and presenter Emma Dabiri.
Stevie Wonder is one of the dominant figures in American music, a multi-faceted genius whose music has permeated popular culture, and he is not short of celebrity fans. His musical achievements are lauded in this anthology of his greatest hits.

It's known as the Alamo of the ancient world, the story of a band of Jewish rebels and their final stand against the Roman Army. The siege of Masada, recorded nearly 2,000 years ago by Jewish military leader Flavius Josephus, is more than a tale of resistance against impossible odds. It's part of the founding narrative of Israel. But how much of it is true?
We take a look at the events that inspired the CBS television miniseries 'The Dovekeepers' and go to the site of the mountain fortress itself, uncovering new truths about this epic conflict.

Brian Greene and an ensemble cast perform this theatrucak work tracing Albert Einstein's electrifying journey towards one of the most veautiful ideas ever conceived - the General Theory of Relativity. With state of the art animation and innovative projection techniques, Light Falls illuminates Einstein'sbreakthuroug moments, near misses, agonizing frustrations, and final emergence into the light, as one intrepid mind took on the universe... and won.
Best-selling author, superstar physicist, and cofounder of the World Science Festival Brian Greene (The Elegant Universe, The Fabric of the Cosmos) and award-winning actor Paul Rudd (Ant-Man) perform this dramatic story. Featuring an original score by composer Jeff Beal, Einstein’s electrifying journey toward his greatest achievement is brought vividly to life.

Zachary Quinto embarks on a journey to understand how artificial intelligence may already be a threat to humanity. He visits Facebook headquarters where he learns about a failed AI experiment where two chat boxes created a language that only they could understand. Zach also gets a firsthand look at the world's latest technology, including life-like dolls programmed with advanced AI, robots that learn and communicate telepathically, highly intelligent drones of war, and Uber self-driving cars.