Experts analyzed satellite imagery of planetary surface cracks and compared them with Earth's geologic features, searching ...

Others believe only single-celled organisms reigned when Earth's plates first cracked apart. In fact, as new methods allow scientists to look ever-deeper into the past, some are now arguing that ...

There's a 2-mile-long crack in the desert of Arizona. At 10 feet wide and up to 30 feet deep in some parts, it is the largest of its kind. It continues to grow. Follow BI Video: On Twitter More ...

The technology of bringing humans back from space makes even the best in the business—NASA, Roscosmos and SpaceX—sweat.