Using advanced technology that analyzes tiny gas bubbles trapped in crystals, a team of scientists led by Cornell University ...

The Hawaiian name for Diamond Head is Le'ahi. It is a tuff cone (consolidated volcanic ash) crater that was created 300,000 years ago during a single volcanic eruption that spewed ash into the air.

The pressure and depth at which the bubbles become trapped provide more precise measurements of magma movement, and could help better predict eruptions.

The Great Lakes, which have long served as an important liquid highway, are the busiest inland waterway on the planet. This program highlights the many lighthouses found along Lake Ontario, Lake ...