When the U.S. Navy classified vital seafloor data during World War II and after, it delayed the development of a key theory.
Plate tectonics is relatively new, put forth in the last 30 years or so — its forerunner was the now-discarded continental drift theory. The theory states that Earth's outer shell is made up of huge slabs of rock called plates that glide over the planet's inner layer, or mantle. As these plates shift, they sometimes collide with other plates, making for some interesting, and even deadly, results on Earth's surface, from erupting volcanoes, to earthquakes, to new mountain ranges. Here's a look at Live Science's news and features related to this constantly moving jigsaw puzzle.
A slippery layer beneath Earth stops chunks of crust in their tracks, creating "stagnant slabs" in the middle of the mantle.
Yes, California will have a big earthquake, but the chances of "the big one" happening now didn't suddenly increase.
Earth would look a lot more like Mars if a mysterious mineral wasn't sucking iron out of the planet's crust. Scientists think they now know the culprit — and it's a gemstone.
Faults are categorized into three general groups based on the sense of slip or movement. Descriptions of the three types of faults that cause earthquakes.
A new scientific expedition to the world's eighth continent, Zealandia, could reveal secrets about the submerged continents formation.
The Hillary Step, a rocky outcrop just beneath the summit of Everest, has finally succumbed to gravity and partially collapsed.
One of the still-unsolved mysteries about Earth's history is how the planet became breathable. Now, scientists say the culprit may have been the giant rock slabs that make up Earth's outer shell.
How hot are Earth's scorching insides? A sweltering 2,570 degrees Fahrenheit (1,410 degrees Celsius), a new study finds.