Low density of Earth's core due to oxygen and silicon impurities

During accretion and differentiation of the Earth, chemical interactions in a silicate magma ocean and liquid iron drove silicon and oxygen impurities into what went on to become the liquid outer core. Contrasting with previous ...

Officials mull seismic tests near US nuclear plant

(AP)—Plans to use an array of powerful air cannons in an undersea seismic study near a Central California nuclear power plant have federal and state officials juggling concerns over marine life with public safety.

Official: Dolphin deaths in Peru still a mystery

(AP) -- Peruvian authorities are still trying to unravel the mystery of why hundreds of dolphins ended up dead on beaches in the country over the past 2 1/2 months.

Predicting the big one

Predicting when a volcano will erupt is the aim of advanced research currently being undertaken by Victoria University's School of Geography, Environment and Earth Sciences.