How the Earth Was Made - Seizoen 2 (2009)

There's a lot of information in How the Earth Was Made, but perhaps the most interesting relates to time. Quite often, the numbers are so staggering that scientists refer to it as "deep time," an appropriate term when one grapples with the notion that our planet is 4.5 billion years old, or that the oceans were formed by rainfall that lasted literally millions of years, or that 700 million years ago, Earth was completely covered by ice that was a mile thick, with surface temperatures reaching minus 40 degrees Fahrenheit. On the other end of the scale are numbers that seem surprisingly small: for instance, it wasn't until 220 years ago that the accepted church doctrine regarding the planet's age (no more than 6000 years, according to the Bible) was seriously challenged and that the key to its past was found in rocks, not scripture, while the discovery that dinosaurs once ruled the Earth came considerably later than that. Using a combination of computer graphics and animation, various drawings and diagrams, photos, location footage, and expert commentary, this fascinating, 94-minute History Channel production takes us from the very beginning, when the planet was formed by meteors colliding in space, through numerous major events (including the appearance of water, granite, and oxygen) and mind-boggling catastrophes (such as mass extinctions caused by volcanic eruptions or the enormous meteor that wiped out 75% of all living things, including the dinosaurs, some 65 million years ago), right up to the present; there's even a glimpse into the future, when Earth will likely end up as barren and lifeless as Mars (no need to hit the panic button yet, though--a few billion more years will pass before that happens). Bonus features include additional scenes and a documentary entitled "Inside the Volcano." --Sam Graham


Seen it: Yes 90 min. 24-11-2009 1. Grand Canyon
	The Grand Canyon is nearly 300 miles long and over a mile deep. You could stack four Empire State buildings one on top of the other and they still wouldn't reach the lip of the Canyon. As vast tectonic plates clash and grind against one another a giant plateau has been pushed up over a mile in the air. The Colorado river, flowing from high in the Rockies and carrying a thick load of sediment, has carved an amazing canyon in the rising plateau.
Seen it: Yes 90 min. 1-12-2009 2. Vesuvius
	Mt Vesuvius is the world's most dangerous volcano, and it threatens three million people. It was responsible for the most famous natural disaster of ancient history, the eruption that destroyed the Roman city of Pompeii. And its most recent blast was caught on film in 1944. Today Vesuvius is the most densely populated volcano in the world. Now recent scientific discoveries show that it is capable of an eruption larger than ever before thought possible and that hidden beneath Vesuvius there is a vast magma chamber of boiling hot rock, ready to come out.
Seen it: Yes 90 min. 8-12-2009 3. Birth Of The Earth
	The creation of the Earth is explored. Included: a study of the planet's oldest rocks and meteorites to see what they reveal about the birth of the Earth and its continued existence after it was first formed.
Seen it: Yes 90 min. 15-12-2009 4. Sahara
	Africa's Sahara Desert is the size of the United States, making it the largest desert in the world. It's also the hottest place on the planet. But now an astonishing series of geological discoveries has revealed this searing wasteland hides a dramatically different past. Scientists have unearthed the fossils of whales, freshwater shells and even ancient human settlements. All clues to a story that would alter the course of human evolution and culminate in biggest climate change event of the last 10,000 years.
Seen it: Yes 90 min. 22-12-2009 5. Yosemite
	The Sierra Nevada, North America's highest mountain range, contains one of the most awe-inspiring geological features on the planet: Yosemite Valley. Walled by sheer 3,000-foot granite cliffs and made from one of the toughest rocks on earth, it is home to the mighty El Capitan and iconic Half Dome. Yet how this extraordinary valley formed has been the subject of controversy for over 100 years. Was it carved by gigantic glaciers or a cataclysmic rifting of the Earth?
Seen it: Yes 90 min. 22-12-2009 6. The Rockies
	From Alaska to New Mexico, the Rockies are one of the great mountain belts of the world--caused by tectonic forces of the Pacific Plate pushing against the North American continent. They have formed as the earth's continental crust has been shortened under pressure--by around 1 inch a year. What's more, they are still rising and they are still young in geologic terms: when the dinosaurs roamed the Earth they had not even started to form.
Seen it: Yes 90 min. 12-1-2010 7. Ring Of Fire
	The single longest linear feature on Earth--the "Ring of Fire" circles almost the entire Pacific. It is a ring of active volcanoes from White Island just north of New Zealand, through the South China seas, Japan, Kamchatka, the Aleutians, the Cascades and down through the Andes. Almost 25,000 miles long, it is one of the most awesome sights on Earth.
Seen it: Yes 90 min. 19-1-2010 8. Everest
	It is the tallest and biggest mountain on earth, as far removed from sea level as it's possible to be--and yet its sedimentary layers contain fossils that were once creatures that lived on the ocean seabed. The Himalayas formed when India smashed into Asia--propelled by plate tectonics. Everest is still rising but its height is limited--extreme erosion counteracts and limits the amount of uplift.
Seen it: Yes 90 min. 26-1-2010 9. Death Valley
	A look at the geologic treasure trove of Death Valley; how one of the hottest places on Earth holds evidence for the coldest times on our planet; and how the valley, already well below sea level, is still sinking lower into the Earth.
Seen it: Yes 90 min. 2-2-2010 10. Mt. St. Helens
	A look at the creation of the Mount St. Helens volcano in Washington state; its history of violent eruptions and the evidence another massive eruption could occur again in the near future.
Seen it: Yes 90 min. 9-2-2010 11. Earth's Deadliest Eruption
	A look back 250 million years ago when a massive volcanic eruption, (in what is now Siberia), spewed lava one mile thick over an area the size of Texas and caused intense climatic change that killed 95% of the life on the planet; paving the way for the next dominant species – the dinosaurs.
Seen it: Yes 90 min. 16-2-2010 12. America's Ice Age
	A look at past Ice Age eras that Earth has experienced throughout its existence; how the slightest changes in the planet's orbit and angle of rotation can bring them about; how long they can last, and when the Earth will endure another.
Seen it: Yes 90 min. 2-3-2010 13. America's Gold
	In the deserts of Nevada, research analysts will examine sedimentary rocks, which have built up over many years, to reveal how extracting several layers of rocks can lead to the discovery of gold residing deep below the surface.