Simulating Natural Selection • 2018 • Primer

52:00

Take a look back at many of the most fascinating science stories of 2017, a year full of stunning advancements in individual fields of study, from astronomy to biology, geology to history – when we piece these discoveries together we see the year in a new light.

2017 • Science

53:06

In the United States, some 10% of people who wish to have children struggle with infertility. It’s especially common in the African American community, and fertility preservation can be difficult for transgender individuals as well. But why is this? And what can be done about it? NOVA explores barriers to fertility, from the social to the biological, and the state of assisted reproductive technologies. Follow the journeys of people navigating challenges from structural inequalities and racism to falling sperm counts.

NOVA PBS • 2021 • Science

59:56

The brain was once thought to be the body's control tower, issuing commands to the other organs. But scientists are discovering that communication flows between all the organs in our bodies. They transmit messages that can boost immunity, improve memory, strengthen bones and even lengthen lifespan.

S1E1 • The Body • 2018 • Science

58:08

In a powerful conclusion, Brian pieces together this story of creation that started with what Einstein called the 'happiest thought of his life' - the moment that he realised that gravity was far stranger than anyone had imagined. In an incredible experiment inside the largest vacuum chamber, Brian reveals how Einstein formulated a new theory of gravity, which ultimately took us back to the big bang. And how in doing so, we humans found our true place in space and time.

S1E5 • Human Universe • 2014 • Science

67:44

2019 was a year filled with astonishing discoveries on Earth and beyond. We inched closer to immortality, recovered and restored our heritage, and science fiction became science fact when we saw the unseeable for the very first time.

2019 • Science

43:41

The promise of time travel has long been one of the world's favorite scientific "what-ifs?" Hawking explores all the possibilities, warping the very fabric of time and space as he goes.

S1E2 • Stephen Hawking's Universe • 1997 • Science