Nature The find roughly doubles the number of known seamounts in Earth’s oceans. Satellite data reveal nearly 20,000 previously unknown deep-sea mountains.
Nature The Magnetic Shield: Safeguarding Planet Earth The magnetic field reaches out into space more than 60,000 km. It forms a protective shell around the earth.
Animal Incredible Action: 2,000-Pound Great White Shark Captures Seal in Astonishing Breaching Display
