Inside This Giant Metal Sphere Lives a Miniature Version of the Earth's Spinning Core [Video]
So how do you study the Earth's core and magnetic fields when it's protected by 1,800 miles of crust? Easy—you just build your own miniature version in a laboratory, using over 28,000 pounds of molten sodium. More »

Cindy Crawford Cindy Taylor Cinthia Moura Claudette Ortiz Coco Lee