Our universe reveals itself in ways we’ve never seen before, thanks to new discoveries in astrobiology. Today, the advent of cutting-edge observational instruments is shedding light on amazing facts about life and the universe. NASA's next-generation space telescope TESS (Exoplanet Survey Satellite) has begun its search for Earth-like planets belonging to other star systems. How many of these 'exoplanets' can host life, and what kind of life forms can evolve in these environments?

Bitcoin, the beautiful anonymity of cash, but cash that wasn't printed by governments. Instead, it was made by a bit of code, powered by citizens of the internet, and you could trust it. Today, anyone can buy cryptocurrency. A few signups, type in your credit card number, and trade in your money for digital cash. And with a few more steps, you can use Bitcoin to buy what the majority of Bitcoin is spent on: Illegal services. Virtual currencies can pose challenges for law enforcement, given the appeal they have among those seeking to conceal.
Is digital cash the next revolution? Learn about this anonymous currency and why it's so coveted.

It all begins as a study on the psychology of prison life led by Stanford psychology professor Dr. Philip Zimbardo. 24 volunteers - 12 guards and 12 prisoners - have agreed to spend the next two weeks recreating life in a correctional facility. Normal people can become monsters, given the right situation, that's the standard narrative of the Stanford Prison Experiment, one of the most famous psychological experiments of all time.
But what if the cause of its participants' cruel behavior wasn't what we've always been told?

After years of anticipation, autonomous vehicles are now being tested on public roads around the world. As ambitious innovators race to develop what they see as the next high-tech pot of gold, some experts warn there are still daunting challenges ahead, including how to train artificial intelligence to be better than humans at making life-and-death decisions.
How do self-driving cars work? How close are we to large-scale deployment of them? And will we ever be able to trust AI with our lives?

Michael Wood embarks on a great historical adventure, exploring the stories, people and landscapes that have helped create China's distinctive character and genius over four thousand years. Is the history of the world's newest superpower, from its ancient past to the present day.
Starting in Wuxi, Michael joins the Qin family reunion, when 300 relatives gather to worship their ancestors on Tomb Sweeping Day. 'Like the nation, the family has been through so much,' one says. 'Now everyone wants to know - what are our roots?'
Looking for the origins of the Chinese state, he visits the excavations at Erlitou and sees an exquisite turquoise dragon sceptre from 2000 BC. China's first writing is found on 'oracle bones' dug up from the Shang royal tombs at Anyang in the 1920s. At the Beijing Planetarium, Michael travels back in time as astronomers plot the planetary conjunction that the ancients believed foretold the overthrow of the Shang Dynasty. Next, the Age of Philosophers and Confucius, whose book Analects has had greater influence worldwide than even the Bible, according to some. In Xi'an, we hear how the First Emperor united China and created the authoritarian Qin state that gave us the word China. Finally, Michael returns to the temple fair in Henan for a dramatic night ceremony to give thanks to the ancestors. China, Michael concludes, is rising again, not just because of its economic strength, but because of the incredible solidarity of the Han Chinese view of their own civilisation, their sense of family and, of course, the presence of the ancestors.

Zachary Quinto sets out to research the strangest creatures dug up from the depths of the ocean and to see how much they lend to the monsters that are depicted in myth and legend. Starting in Australia, he meets with a teenager who was savagely attacked by a swarm of mysterious flesh-eating monsters, only to jump into the water himself the next day amongst highly venomous sea creatures.
From the carnivorous fish of American rivers to the eyeless monsters of the Atlantic Ocean, Zachary finds some merit in these old monster stories and is starting to understand just what we mean when we say that we know less than 1% of what waits in the depths below.