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- In this National Geographic special, we look at what most call "The Final Frontier". Using the newest data gathered from scientists all over the world and the latest advancements in computer generated imaging, we are able to explore some of the most dramatic landscapes the Earth has to offer. From the tallest mountain to fissures that would engulf entire countries, the ocean floor is truly a sight to behold.
- At this very moment, celestial forces prowl the Universe and threaten man's very existence. They're asteroids and comets--and they've left their imprint on planet Earth, literally. Initially, they helped build planets through violent collisions. During this fiery bombardment period, they may have even seeded Earth with water and the building blocks for life.
- The question of our human origins is one of the most controversial science has wrestled with. This is the story of how scientists came to explain the beauty and diversity of life on earth, and reveal how its evolution is connected to the long and violent history of our planet. Featuring ocean adventurers, eccentric French aristocrats, mountain climbers, a secret Victorian publisher with 12 fingers, a ridiculed German meteorologist, and only a brief hint of Charles Darwin.
- The geological history of New York City is as superlative as it's current economic impact including; a titanic mountain rage, massive volcanic eruptions, immense glaciers and an enormous flash flood.
- Scientists present evidence that the Sahara Desert periodically transitions from desert to a lush green environment and back. They also present theories about why this happens.
- The Halocene Impact Working Group postulates that minor comet impacts are fairly frequent but still catastrophic enough to alter human history. This program reviews their research into ancient flood myths, the global cooling event in 535 A.D., the demise of the Clovis people and other events.
- Humanity has launched satellites into outer space and submarines to the ocean floor, but the ground below Earth's surface remains shrouded in mystery. Are there profound secrets buried beneath layers of rock, or hidden in vast caves? Can the subterranean world below shed light on humanity's past, or even its future?