Tyson begins the episode by explaining the nature of the speed of light and how much of what is seen of the observable universe is from light emanated from billions of years in the past. Tyson further explains how modern astronomy has used such analyzes via deep time to identify the Big Bang event and the age of the universe. Tyson proceeds to describe how the work of Isaac Newton, William Herschel, and James Clerk Maxwell contributed to understanding the nature of electromagnetic waves and gravitational force, and how this work led towards Albert Einstein's Theory of Relativity, that the speed of light is a fundamental constant of the universe and gravity can be seen as distortion of the fabric of space-time. Tyson describes the concept of dark stars as postulated by John Michell which are not visible but detectable by tracking other stars trapped within their gravity wells, an idea Herschel used to discover binary stars. Tyson then describes the nature of black holes, their enormous gravitational forces that can even capture light, and their discovery via X-ray sources such as Cygnus X-1. Tyson uses the Ship of Imagination to provide a postulate of the warping of spacetime and time dilation as one enters the event horizon of the black hole, and the possibility that these may lead to other points within our universe or others, or even time travel. Tyson ends on noting that Herschel's son, John would be inspired by his father to continue to document the known stars as well as contributions towards photography that play on the same nature of deep time used by astronomers.

This scientific detective tale tells the story of a remarkable group of pioneers who wanted to reach the ultimate extreme: absolute zero, a place so cold that the physical world as we know it doesn't exist, electricity flows without resistance, fluids defy gravity and the speed of light can be reduced to 38 miles per hour. Absolute zero became the Holy Grail of temperature physicists and is considered the gateway to many new technologies, such as nano-construction, neurological networks and quantum computing. The possibilities, it seems, are limitless. The first episode Chronicles the major discoveries leading towards the mastery of cold, beginning with King James I's court magician, Cornelius Drebbel, who managed to air condition the largest interior space in the British Isles in 1620. Other stories will include the first "natural philosopher," Robert Boyle, a founder of the Royal Society in Great Britain; the Grand Duke Ferdinand II de Medici's involvement in the creation of the first thermometer; the establishment of the laws of thermodynamics by three young scientists, Sadi Carnot, James Joule and William Thomson; and Michael Faraday's critical achievement in liquefying several other gases which set the stage for the commercial application of cold to refrigeration and air conditioning.

An epic true story set against the backdrop of one of the wildest places on Earth, African Cats captures the real-life love, humour and determination of the majestic kings of the savannah. Narrated by Samuel L. Jackson, the story features Mara, an endearing lion cub who strives to grow up with her mother’s strength, spirit and wisdom; Sita, a fearless cheetah and single mother of five mischievous newborns; and Fang, a proud leader of the pride who must defend his family from a rival lion and his sons.

Stephen Hawking, the world's most famous living scientist explores the greatest mysteries of the cosmos. In three landmark instalments he reveals the wonders of the universe as never seen before. Definitive, provocative, surprising, and beautiful, Into the Universe with Stephen Hawking is a fascinating look through the mind's eye of one of the finest brains on the planet. In 'Aliens' Hawking considers one of the most important mysteries facing humankind - the possibility of alien, intelligent life. He leads us on a journey rendered in eye-popping detail, from the moons of Jupiter to a galaxy maybe not so far, far away. We will meet possible aliens and wonder at their form, we will delve into the very principles of what it is to call something alive, and we will calculate the likelihood of 'contact' being made.

This series, presented by Robert Winston, takes us on a journey from birth to death using time-lapse photography, computer graphics and various state-of-the-art imaging techniques to explore every aspect, every nook and crevice of the human body in its various stages of growth, maturity and eventual decay. Though heart-warming in that it shows the commonality of human experience, The Human Body is also a potentially depressing reminder of our frail physicality and mortality." In this episode, follow Jeff and Phillippa from conception to the birth of their first child Bob in An Everyday Miracle. Learn why conception is the most dangerous part of your life, and the struggles that you must go through to even reach the first step. The couple openly discuss their concerns and joy throughout their entire pregnancy and this episode in particular would be well worth viewing by those who are expecting their first child. From experience, this tasteful and informative section captures aspects of pregnancy that the hospital-run Maternity Classes don't explain as well. You even get to see the birth of their child which makes for a great lead into the next section. And in case you were wondering, every day there are around 100 million acts of sexual intercourse taking place in the world resulting in around 910,000 conceptions.

In the interesting second episode, we embark on a journey to the picturesque island of Sardinia. Here the people live in harmony with the land and with one another. Learn about this effortless lifestyle where work and play seem to be united and the result is longevity. In this episode, the documentary also explores the unexpected discovery of unusual longevity in a North American suburb. Their lifestyles, dietary habits, and sense of community contribute to the remarkable longevity observed in these regions.
The importance of a plant-based diet, social connections, and positive health behaviors is highlighted, offering viewers valuable insights into leading a longer, healthier life. Join us as we uncover the unexpected secrets that may forever change the way we approach health and happiness.