Why Does Earth Have A Magnetic Field?

Have you ever wondered why does Earth have a magnetic field and what causes it? This video explains briefly! SUBSCRIBE ► Website ► Facebook ► Instagram ► Credit & Graphics: NASA’s Scientific Visualization Studio/JPL NAIF Videoblocks Space Engine Music: I Think I Can Help You - Surviving The Asteroid Belt - Cosmoknowledge brings news from space. We love you, explorers!