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
From a once seething, hellish mass of molten rock to the world that inhabits life today, take a rollercoaster ride through the entire history of Planet Earth. Its 4.5 billion year epic, a story of unimaginable timescales, earth-shattering forces, incredible life forms, radical climates and mass extinctions. Discover how the continents were formed, canyons were carved, and why the world's animals live where they do.
DVD Features: Additional Scenes; Bonus Documentary Inside the Volcano