Newly discovered flux in the Earth may solve missing-mantle mystery
Tuesday, July 16, 2013 - 13:00
in Astronomy & Space
It's widely thought that the Earth arose from violent origins: Some 4.5 billion years ago, a maelstrom of gas and dust circled in a massive disc around the Sun, gathering in rocky clumps to form asteroids. These asteroids, gaining momentum, whirled around a fledgling solar system, repeatedly smashing into each other to create larger bodies of rubble—the largest of which eventually cooled to form the planets.