Documentary AreaSimply the best Documentaries

Sagan discusses the story of the Heike crab and artificial selection of crabs resembling samurai warriors, as an opening into a larger discussion of evolution through natural selection (and the pitfalls of intelligent design). Among the topics are the development of life on the Cosmic Calendar and the Cambrian explosion; the function of DNA in growth; genetic replication, repairs, and mutation; the common biochemistry of terrestrial organisms; the creation of the molecules of life in the Miller-Urey experiment; and speculation on alien life (such as life in Jupiter's clouds). In the Cosmos Update ten years later, Sagan remarks on RNA also controlling chemical reactions and reproducing itself and the different roles of comets (potentially carrying organic molecules or causing the Cretaceous–Paleogene extinction event).

Beneath the modern streets of Rome lies a city of breathtaking scale and ambition, once the heart of an empire that shaped the world. In this 15-part journey, archaeologist Dr. Darius Arya becomes your guide into a vivid time machine, where stunning CGI reconstructions resurrect the capital in all its glory. From the steamy elegance of vast bath complexes to the roar of chariot races, from awe-inspiring temples to political halls where history was forged, each episode reveals how engineering brilliance, artistic mastery, and human will transformed humble hills into the Eternal City. This is not just a tour of ruins—it’s Rome as its citizens once knew it.

New discoveries have rewritten the history of our solar system, revealing a complex and violent story that begins with the birth of our Sun from the debris of a massive galactic collision, to its eventual fate as a lone zombie star.
It is a dramatic history of elegant beauty and extreme violence. The inner solar system was like a congested highway. Planets crossing lanes, frequent collisions. There were a lot of planets that could have made it but didn't, and we just happen to be one of the lucky ones that did. The players in our solar system's story are more tangled up than we ever imagined. Without all of these things interplaying, the Earth wouldn't have the stable environment that we have today, and life wouldn't be able to exist.

In Episode 3, embark on a breathtaking journey with Professor Brian Cox as he ventures into the storm worlds of our solar system. This chapter uncovers colossal tempests that have raged for centuries, metallic frost blanketing alien mountains, and monsoon rains falling a billion kilometers from Earth. A visually stunning exploration of the most extreme weather in the cosmos — a chapter that will forever change how we view planetary atmospheres.

In this final journey through our celestial neighborhood, Professor Brian Cox ventures beyond the familiar into the utterly bizarre. He uncovers a dwarf planet shaped like an egg that defies scientific logic, a tiny moon resembling a flying saucer, and a chilling ocean world locked in orbit around Jupiter. These strange and haunting places challenge everything we thought we knew about the solar system—making this the most mind-bending chapter of the series.

The Sky at Night looks back at the last ten years of astronomy and ponders the most significant milestones and revelations. With the help of six distinguished astronomers, Chris and Maggie consider the state of astronomy in 2020 and wonder what new, exciting discoveries await us across the rest of the decade, as a host of new ground and space telescopes come online. Astronomer Royal Lord Martin Rees is among the guests to walk along the Astronomical Wall of Discovery in this one-hour special.