A team of geophysicists at ETH Zurich in Switzerland has made a baffling discovery while analyzing earthquake waves to calculate the internal structures of the Earth. They found areas in our planet's interior that appear to be the leftovers of submerged tectonic plates deep below large oceans and far away from plate boundaries — nowhere near where scientists expected to find them.

The recent and still-raging Los Angeles wildfires have prompted some online to wonder: Can we use ocean water to fight fires? While the Pacific Ocean sits adjacent to the city of Los Angeles, several factors render its use in firefighting impractical and even potentially harmful.

Meanwhile, Los Angeles officials on Wednesday urged residents to conserve water use as firefighters struggle to tamp down the flames.