What sort of alien civilizations might exist in the vastness of space? Terra is the fictional world imagined in Episode 4, a planet nine billion years old, twice as old as Earth. Old enough that a truly advanced intelligence could evolve. It was once a fertile world, now it is barren. But life can still thrive here in artificial domes. Over time, they've evolved not to need their bodies. They exist only as neural tissue. They never age, they never die. They're monitored and maintained by robots. If alien civilizations are statistically so likely, why haven't astronomers found any sign of them? Where is everyone? Every time we look at an individual star, that's like dropping a bucket in the ocean. We're going to have to look at a lot of stars and to search through a lot of data until we find the clue that leads us to another civilization.
Do other worlds tremble and heave with geological life? On Mars, we found a volcano to dwarf Mount Everest. On the moons of the giants our understanding of volcanoes was changed forever.
We sure lucked out with Planet Earth. Blue skies, rolling hills, water everywhere. But our home didn't come like this out of the box. Earth was a real fixer-upper, and it took some seriously hard work to build this paradise. Nearly four billion years of renovation. Some tiny, some huge, to make this house a home. Creatures on Earth don't just live and die. They actually change the world around them. The story of how for nearly 4 billion years, microbes, plants and animals have emerged and sculpted the planet's surface and atmosphere in the strangest of ways.
Orbiting Earth at around 27.000 km/h, the International Space Station is one of humanity’s greatest engineering achievements, but also one of the most unforgiving places ever built. Astronauts and mission controllers recount moments when routine work suddenly became a fight for survival: a spacesuit filling with water, toxic ammonia spraying across a spacewalker, dangerous temperature extremes, radiation, fire, contamination and the constant threat of collision. The series reveals how every mission depends on training, improvisation and split-second decisions in an environment where even a small failure can become fatal. Across the two episodes, presented here together in a single uninterrupted video, the danger escalates from the hazardous construction and maintenance of the station to the growing risks of life aboard it. Astronauts face micrometeoroids and space debris travelling at lethal speeds, docking emergencies and system failures, culminating in the extraordinary 2021 incident when the newly arrived Nauka module unexpectedly fired its thrusters and sent the entire ISS rotating out of control. With communications at risk and the structure under immense strain, crews in orbit and controllers on Earth must work together to regain control. The result is a gripping story of courage, science and survival inside a machine that has kept humans continuously living in space for more than two decades.
The story of Nikola Tesla, the great scientist, visionary, and inventor who gave the world alternating current electricity, as well as being the father of radio. The film tells the story of this man's astonishing genius, his visions and inventions. Tesla's own scientific and autobiographical writings, as well as archival photographs and re-enactments are used to tell the story. A native of Austro-Hungary, Tesla came to America in 1884. Working first with Edison, the two inventors fell out over Edison's insistence on using direct current. Tesla took his alternating current vision to Westinghouse. Tesla worked to unlock the secrets of energy and electricity. The film follows Tesla's exploits and eccentricities, which made him a darling of the press. Largely forgotten today in spite of the great debt the modern world owes him, the film pays tribute to this overlooked genius
In the sixth episode, Steven's attorneys cross-examine forensic experts about contaminated evidence and the absence of proof linking Steven to the crime.
If alien civilizations are statistically so likely, why haven't astronomers found any sign of them? Where is everyone? Every time we look at an individual star, that's like dropping a bucket in the ocean. We're going to have to look at a lot of stars and to search through a lot of data until we find the clue that leads us to another civilization.