Fragile Planet?: Study Finds Earth Is Weaker Than Once Thought

CBS Local — Scientists at the University of Pennsylvania are saying that the Earth may be even more fragile than most people thought. According to new findings about the substance that makes up most of the planet’s mantle, researchers are changing their theories on how the world’s tectonic plates move under us.
The researchers say olivine, which is found throughout the Earth’s interior, is weaker than scientists had thought for years. Geologists reportedly found that the