Due to the movement of Earth’s tectonic plates, our planet’s crust is constantly recycled, making rocks and minerals from its earliest days incredibly rare. That’s frustrating for geologists, since surface-level Hadean rocks (rocks older than 4.03 billion years) could provide significant insight into the first geological stages of Earth’s 4.5-billion-year history. In a study published […]
How Did This 1,300-Ton Boulder Travel Up a Cliff? Scientists Just Figured It Out
A giant boulder in Tonga rode a wave from an ancient tsunami 7,000 years ago. The 1,300-ton rock traveled a distance twice the size of a football field, swept away by the sheer force of the wave, according to a new study. But this was no ordinary giant rock. It was also sitting on a […]