Yellowstone National Park is one of the most dangerous geological features on Earth.
Spectacular on-location footage, evidence from geologists in the field, and clear, dramatic graphics combine to show how immensely powerful and at times violent forces of geology have formed our planet.
A look at the geologic history of the land modern day New York City sits atop; how Ice Age glaciers carved the rock beneath the metropolis, and its connection to land on the east coast of Africa.
Home to the legend of the Loch Ness Monster, this lake holds more water than any other lake in Britain. It's only 10,000 years old, but billions of years in the making.
In 1883 a series of blasts on the island of Krakatoa culminated in a colossal explosion that blew the island apart. We explore the underground forces that led to this extraordinary explosion.
It is the largest and most fearsome volcanic island on the planet. This program scours the island for clues, to address the mystery of what powerful forces are ripping Iceland apart and lighting its fiery volcanoes.
A look at the geologic puzzle of how the isolated Hawaiian Islands chain was formed and predictions about their future.
A look at the Great Lakes of North America - the largest expanse of freshwater on Earth, and how findings gathered from a fossilized coral reef and the salt mines below the lakes are providing geologists with evidence that the region was once an ancient seabed.
A look at the driest place on Earth, the Atacama Desert in South America which is 50 times dryer than Death Valley; and how even in such a barren place, bacteria can still thrive.
A look at Challenger Deep, the deepest part of the Mariana Trench, where only a few scientists have been able to explore this amazing rift caused by the subduction of the Pacific Plate under the Mariana Plate.
A look at how asteroids played a role in the formation of the Earth; a study of how the Barringer Meteor Crater in Arizona was formed, and why little evidence remains of the meteor itself that created it.
A look at the Alps mountain range in Europe; how geologic uplifting caused by the collision of the African and Eurasian plates brought such peaks as the Matterhorn and Eiger to their current height, and the marine fossil evidence found there that shows the land was once below sea level.
Over 20 years ago this active volcano - thought to be dormant - shocked America when it exploded. When will it blow again?
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