Literal groundbreaking research by Dr. Giorgio Arriga enhances our understanding of the long-term evolution of seismogenic ...

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

Our planet has evolved a lot over the years, going from volcanic molten surface when it was first formed to the life preserving bubble in space it is today. So there are a lot of questions about how ...

Radioactive materials are found naturally in the Earth. But even so, saying an area is radioactive can conjure up images of ...