Earth as oxygenator. Earth loses about 90 tons of gas—mainly hydrogen and helium—to space every day. That’s tiny compared to the mass of our atmosphere, so there’s no cause for alarm. But ...

But Iceland's volcanoes have had ramifications far beyond the shores of Iceland, causing climatic chaos and devastation across the planet; a fate which may one day happen again. 12. Hawaii ...

Visit the TV show page for 'How the Earth Was Made' on Moviefone. Discover the show's synopsis, cast details, and season information. Watch trailers, exclusive interviews, and episode reviews.

It isn’t easy to figure out how the Earth was built, because it happened 4½ billion years ago, and no one was there to watch. So scientists have had to look at what the Earth looks like now and ...

Today, more than 70% of Earth is covered in liquid water. But long before the sea became a familiar feature of our planet’s surface, the water that now fills our oceans, lakes, and streams was ...