Radiotherapy, or radiation therapy, is the clinical use of high energy rays (ionizing radiation) to induce DNA damage in all exposed cells to ultimately kill cancer cells or prevent cancer growth.

Tectonics is the study of the structural geology of the Earth and other planetary bodies, and the local and regional processes that created that rock geometry. This includes the movements of the ...

Scientists now believe there have been at least 19 major, megathrust earthquakes triggered at the Cascadia Subduction Zone in the past 10,000 years. Near the Pacific Northwest's particularly ...