November 1, 1998
Geologists, who study the Earth, seek to understand the processes that have shaped our planet throughout its history, creating the...Read more
November 8, 1998
A curious feature of our planet's surface is that it has two distinct levels: the dry land on the continents, on average a few hun...Read more
November 15, 1998
The Pacific Ocean is rimmed by a chain of active volcanoes, arranged in a series of graceful arcs and extending 30,000 kilometres ...Read more
November 22, 1998
What drives the tectonic plates as they glide over the Earth's surface? Searching for an answer, scientists have probed our planet...Read more
December 6, 1998
Most of the dry land on Earth sits no more than a few hundred metres above sea level. But in some places mountain belts rise to he...Read more
December 13, 1998
In the nineteenth century geologists discovered evidence that large parts of the northern hemisphere had once been covered by giga...Read more
December 20, 1998
Over the past 4 billion years, life has evolved from simple single-celled organisms into the tremendous variety of plants and anim...Read more
December 27, 1998
Is the Earth unique, and if so, why? To find an answer, scientists have had to explore the Solar System, searching for clues about...Read more